1,3-Diphenyltriazene
sc-206244
Material Safety Data Sheet
Hazard Alert Code EXTREME HIGH MODERATE LOW
Key:
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
1,3-Diphenyltriazene
STATEMENT OF HAZARDOUS NATURE
CONSIDERED A HAZARDOUS SUBSTANCE ACCORDING TO OSHA 29 CFR 1910.1200.
NFPA
1
FLAMMABILITY
2 0
HEALTH HAZARD INSTABILITY
SUPPLIER
Company: Santa Cruz Biotechnology, Inc.
Address:
2145 Delaware Ave
Santa Cruz, CA 95060
Telephone: 800.457.3801 or 831.457.3800
Emergency Tel: CHEMWATCH: From within the US and
Canada: 877-715-9305
Emergency Tel: From outside the US and Canada: +800 2436
2255 (1-800-CHEMCALL) or call +613 9573 3112
PRODUCT USE
Intermediate. Complexing agent, polymer additive.
SYNONYMS
C12-H11-N3, "triazene, 1, 3-diphenyl-", "triazene, 1, 3-diphenyl-", "aniline, N-(phenylazo)-", "aniline, N-(phenylazo)-", DAAB,
diazoaminobenzene, p-diazoaminobenzene, p-diazoaminobenzene, diazoaminobenzol
Section 2 - HAZARDS IDENTIFICATION
CANADIAN WHMIS SYMBOLS
EMERGENCY OVERVIEW
RISK
Explosive when dry.
Heating may cause an explosion.
Harmful by inhalation, in contact with skin and if swallowed.
Irritating to eyes, respiratory system and skin.
POTENTIAL HEALTH EFFECTS
ACUTE HEALTH EFFECTS
SWALLOWED
Accidental ingestion of the material may be harmful; animal experiments indicate that ingestion of less than 150 gram may
be fatal or may produce serious damage to the health of the individual.
The substance and/or its metabolites may bind to hemoglobin inhibiting normal uptake of oxygen. This condition, known as
"methemoglobinemia", is a form of oxygen starvation (anoxia).
Symptoms include cyanosis (a bluish discoloration skin and mucous membranes) and breathing difficulties. Symptoms may not
be evident until several hours after exposure.
At about 15% concentration of blood methemoglobin there is observable cyanosis of the lips, nose and earlobes. Symptoms
may be absent although euphoria, flushed face and headache are commonly experienced. At 25-40%, cyanosis is marked but
little disability occurs other than that produced on physical exertion. At 40-60%, symptoms include weakness, dizziness,
lightheadedness, increasingly severe headache, ataxia, rapid shallow respiration, drowsiness, nausea, vomiting, confusion,
lethargy and stupor. Above 60% symptoms include dyspnea, respiratory depression, tachycardia or bradycardia, and
convulsions. Levels exceeding 70% may be fatal.
EYE
This material can cause eye irritation and damage in some persons.
SKIN
Skin contact with the material may be harmful; systemic effects may resultfollowing absorption.
This material can cause inflammation of the skin oncontact in some persons.
The material may accentuate any pre-existing dermatitis condition.
Open cuts, abraded or irritated skin should not be exposed to this material.
Entry into the blood-stream, through, for example, cuts, abrasions or lesions, may produce systemic injury with harmful
effects. Examine the skin prior to the use of the material and ensure that any external damage is suitably protected.
INHALED
Inhalation of dusts, generated by the material, during the course of normalhandling, may be harmful.
The material can cause respiratory irritation in some persons. The body's response to such irritation can cause further lung
damage.
Persons with impaired respiratory function, airway diseases and conditions such as emphysema or chronic bronchitis, may
incur further disability if excessive concentrations of particulate are inhaled.
CHRONIC HEALTH EFFECTS
Long-term exposure to respiratory irritants may result in disease of the airways involving difficult breathing and related
systemic problems.
Limited evidence suggests that repeated or long-term occupational exposure may produce cumulative health effects involving
organs or biochemical systems.
Long term exposure to high dust concentrations may cause changes in lung function i.e. pneumoconiosis; caused by particles
less than 0.5 micron penetrating and remaining in the lung. Prime symptom is breathlessness; lung shadows show on X-ray.
Most arylamines are powerful poisons to the blood-making system. High chronic doses cause congestion of the spleen and
tumor formation.
Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS
HAZARD RATINGS
Min Max
Flammability: 1
Toxicity: 2
Body Contact: 2 Min/Nil=0
Low=1
Reactivity: 2 Moderate=2
High=3
Chronic: 2
Extreme=4
NAME CAS RN %
1,3-diphenyltriazene 136-35-6 >98
Section 4 - FIRST AID MEASURES
SWALLOWED
IF SWALLOWED, REFER FOR MEDICAL ATTENTION, WHERE POSSIBLE, WITHOUT DELAY.
Where Medical attention is not immediately available or where the patient is more than 15 minutes from a hospital or unless
instructed otherwise:
For advice, contact a Poisons Information Center or a doctor.
Urgent hospital treatment is likely to be needed.
If conscious, give water to drink.
INDUCE vomiting with fingers down the back of the throat, ONLY IF CONSCIOUS. Lean patient forward or place on left
side (head-down position, if possible) to maintain open airway and prevent aspiration.
NOTE: Wear a protective glove when inducing vomiting by mechanical means.
In the mean time, qualified first-aid personnel should treat the patient following observation and employing supportive
measures as indicated by the patient's condition.
If the services of a medical officer or medical doctor are readily available, the patient should be placed in his/her care and a
copy of the MSDS should be provided. Further action will be the responsibility of the medical specialist.
If medical attention is not available on the worksite or surroundings send the patient to a hospital together with a copy of
the MSDS.
EYE
If this product comes in contact with the eyes:
Wash out immediately with fresh running water.
Ensure complete irrigation of the eye by keeping eyelids apart and away from eye and moving the eyelids by occasionally
lifting the upper and lower lids.
If pain persists or recurs seek medical attention.
Removal of contact lenses after an eye injury should only be undertaken by skilled personnel.
SKIN
If skin contact occurs:
Immediately remove all contaminated clothing, including footwear
Flush skin and hair with running water (and soap if available).
Seek medical attention in event of irritation.
INHALED
If fumes or combustion products are inhaled remove from contaminated area.
Lay patient down. Keep warm and rested.
Prostheses such as false teeth, which may block airway, should be removed, where possible, prior to initiating first aid
procedures.
Apply artificial respiration if not breathing, preferably with a demand valve resuscitator, bag-valve mask device, or pocket
mask as trained. Perform CPR if necessary.
Transport to hospital, or doctor, without delay.
NOTES TO PHYSICIAN
Treat symptomatically.
The material may induce methemoglobinemia following exposure.
Initial attention should be directed at oxygen delivery and assisted ventilation if necessary. Hyperbaric oxygen has not
demonstrated substantial benefits.
Hypotension should respond to Trendelenburg's position and intravenous fluids; otherwise dopamine may be needed.
Symptomatic patients with methemoglobin levels over 30% should receive methylene blue. (Cyanosis, alone, is not an
indication for treatment). The usual dose is 1-2 mg/kg of a 1% solution (10 mg/ml) IV over 50 minutes; repeat, using the
same dose, if symptoms of hypoxia fail to subside within 1 hour.
BIOLOGICAL EXPOSURE INDEX - BEI These represent the determinants observed in specimens collected from a healthy
worker exposed at the Exposure Standard (ES or TLV):
Determinant Index Sampling Time Comment
1. Methemoglobin in blood 1.5% of hemoglobin During or end of shift B, NS, SQ
B: Background levels occur in specimens collected from subjects NOT exposed
NS: Non-specific determinant; also observed after exposure to other materials
SQ: Semi-quantitative determinant - Interpretation may be ambiguous; should be used as a screening test or confirmatory test.
Section 5 - FIRE FIGHTING MEASURES
Vapour Pressure (mmHG): Negligible
Upper Explosive Limit (%): Not available.
Specific Gravity (water=1): Not available
Lower Explosive Limit (%): Not available
EXTINGUISHING MEDIA
Foam.
Dry chemical powder.
BCF (where regulations permit).
Carbon dioxide.
Water spray or fog - Large fires only.
FIRE FIGHTING
Alert Emergency Responders and tell them location and nature of hazard.
Wear breathing apparatus plus protective gloves.
Prevent, by any means available, spillage from entering drains or water course.
Use water delivered as a fine spray to control fire and cool adjacent area.
DO NOT approach containers suspected to be hot.
Cool fire exposed containers with water spray from a protected location.
If safe to do so, remove containers from path of fire.
Equipment should be thoroughly decontaminated after use.
GENERAL FIRE HAZARDS/HAZARDOUS COMBUSTIBLE PRODUCTS
WARNING: May EXPLODE on heating!!!.
Combustible solid which burns but propagates flame with difficulty.
Avoid generating dust, particularly clouds of dust in a confined or unventilated space as dusts may form an explosive
mixture with air, and any source of ignition, i.e. flame or spark, will cause fire or explosion. Dust clouds generated by the
fine grinding of the solid are a particular hazard; accumulations of fine dust may burn rapidly and fiercely if ignited.
Dry dust can be charged electrostatically by turbulence, pneumatic transport, pouring, in exhaust ducts and during
transport.
Build-up of electrostatic charge may be prevented by bonding and grounding.
Powder handling equipment such as dust collectors, dryers and mills may require additional protection measures such as
explosion venting.
Combustion products include: carbon monoxide (CO), carbon dioxide (CO2), nitrogen oxides (NOx), other pyrolysis products
typical of burning organic material.
May emit poisonous fumes.
May emit corrosive fumes.
FIRE INCOMPATIBILITY
Avoid contamination with oxidizing agents i.e. nitrates, oxidizing acids,chlorine bleaches, pool chlorine etc. as ignition may
result.
PERSONAL PROTECTION
Glasses:
Chemical goggles.
Gloves:
Respirator:
Particulate
Section 6 - ACCIDENTAL RELEASE MEASURES
MINOR SPILLS
Remove all ignition sources.
Clean up all spills immediately.
Avoid contact with skin and eyes.
Control personal contact by using protective equipment.
Use dry clean up procedures and avoid generating dust.
Place in a suitable, labelled container for waste disposal.
MAJOR SPILLS
Moderate hazard.
CAUTION: Advise personnel in area.
Alert Emergency Responders and tell them location and nature of hazard.
Control personal contact by wearing protective clothing.
Prevent, by any means available, spillage from entering drains or water courses.
Recover product wherever possible.
IF DRY: Use dry clean up procedures and avoid generating dust. Collect residues and place in sealed plastic bags or other
containers for disposal. IF WET: Vacuum/shovel up and place in labelled containers for disposal.
ALWAYS: Wash area down with large amounts of water and prevent runoff into drains.
If contamination of drains or waterways occurs, advise emergency services.
ACUTE EXPOSURE GUIDELINE LEVELS (AEGL) (in ppm)
AEGL 1: The airborne concentration of a substance above which it is predicted
that the general population, including susceptible individuals, could
experience notable discomfort, irritation, or certain asymptomatic nonsensory
effects. However, the effects are not disabling and are transient and
reversible upon cessation of exposure.
AEGL 2: The airborne concentration of a substance above which it is predicted
that the general population, including susceptible individuals, could
experience irreversible or other serious, long-lasting adverse health effects
or an impaired ability to escape.
AEGL 3: The airborne concentration of a substance above which it is predicted
that the general population, including susceptible individuals, could
experience life-threatening health effects or death.
Section 7 - HANDLING AND STORAGE
PROCEDURE FOR HANDLING
Avoid all personal contact, including inhalation.
Wear protective clothing when risk of exposure occurs.
Use in a well-ventilated area.
Prevent concentration in hollows and sumps.
DO NOT enter confined spaces until atmosphere has been checked.
DO NOT allow material to contact humans, exposed food or food utensils.
Avoid contact with incompatible materials.
When handling, DO NOT eat, drink or smoke.
Keep containers securely sealed when not in use.
Avoid physical damage to containers.
Always wash hands with soap and water after handling.
Work clothes should be laundered separately.
Launder contaminated clothing before re-use.
Use good occupational work practice.
Observe manufacturer's storing and handling recommendations.
Atmosphere should be regularly checked against established exposure standards to ensure safe working conditions are
maintained.
Empty containers may contain residual dust which has the potential to accumulate following settling. Such dusts may explode
in the presence of an appropriate ignition source.
Do NOT cut, drill, grind or weld such containers
In addition ensure such activity is not performed near full, partially empty or empty containers without appropriate
workplace safety authorisation or permit.
RECOMMENDED STORAGE METHODS
Polyethylene or polypropylene container.
Check all containers are clearly labelled and free from leaks.
STORAGE REQUIREMENTS
Store in original containers.
Keep containers securely sealed.
Store in a cool, dry, well-ventilated area.
Store away from incompatible materials and foodstuff containers.
Protect containers against physical damage and check regularly for leaks.
Observe manufacturer's storing and handling recommendations.
SAFE STORAGE WITH OTHER CLASSIFIED CHEMICALS
+ X + X X +
X: Must not be stored together
O: May be stored together with specific preventions
+: May be stored together
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE CONTROLS
TWA TWA STEL STEL Peak Peak TWA
Source Material Notes
ppm mg/m?ppm mg/m?ppm mg/m?F/CC
US - Oregon Permissible 1,3-diphenyltriazene (Inert or 10 *
Exposure Limits (Z3) Nuisance Dust: (d) Total dust)
US OSHA Permissible 1,3-diphenyltriazene (Inert or
Exposure Levels (PELs) - Nuisance Dust: (d) Respirable 5
Table Z3 fraction)
US OSHA Permissible 1,3-diphenyltriazene (Inert or
Exposure Levels (PELs) - 15
Nuisance Dust: (d) Total dust)
Table Z3
1,3-diphenyltriazene (Particulates
US - Hawaii Air Contaminant
not other wise regulated - Total 10
Limits
dust)
1,3-diphenyltriazene (Particulates
US - Hawaii Air Contaminant
not other wise regulated - 5
Limits
Respirable fraction)
1,3-diphenyltriazene (Inert or
US - Oregon Permissible
Nuisance Dust: (d) Respirable 5 *
Exposure Limits (Z3)
fraction)
Canada - Quebec Permissible 1,3-diphenyltriazene (Particulates
Exposure Values for Airborne Not Otherwise Classified 10
Contaminants (English) (PNOC))
See
Canada - Prince Edward 1,3-diphenyltriazene (Particles Appendix
Island Occupational Exposure (Insoluble or Poorly Soluble) 3 B current
Limits [NOS] Respirable particles) TLV/BEI
Book
See
1,3-diphenyltriazene (Particles Appendix
US ACGIH Threshold Limit
(Insoluble or Poorly Soluble) 10 B current
Values (TLV)
[NOS] Inhalable particles) TLV/BEI
Book
1,3-diphenyltriazene (Particles
Canada - British Columbia
(Insoluble or Poorly Soluble) Not 10 (N)
Occupational Exposure Limits
Otherwise Classified (PNOC))
See
1,3-diphenyltriazene (Particles Appendix
US ACGIH Threshold Limit
(Insoluble or Poorly Soluble) 3 B current
Values (TLV)
[NOS] Respirable particles) TLV/BEI
Book
US - Washington Permissible 1,3-diphenyltriazene (Particulates
exposure limits of air not otherwise regulated - 5 10
contaminants Respirable fraction)
US - Washington Permissible 1,3-diphenyltriazene (Particulates
exposure limits of air not otherwise regulated - Total 10 20
contaminants particulate)
See
1,3-diphenyltriazene (Particles Appendix
Canada - Nova Scotia
(Insoluble or Poorly Soluble) 10 B current
Occupational Exposure Limits
[NOS] Inhalable particles) TLV/BEI
Book
See
Canada - Prince Edward 1,3-diphenyltriazene (Particles Appendix
Island Occupational Exposure (Insoluble or Poorly Soluble) 10 B current
Limits [NOS] Inhalable particles) TLV/BEI
Book
See
1,3-diphenyltriazene (Particles Appendix
Canada - Nova Scotia
(Insoluble or Poorly Soluble) 3 B current
Occupational Exposure Limits
[NOS] Respirable particles) TLV/BEI
Book
US - Tennessee Occupational 1,3-diphenyltriazene (Particulates
Exposure Limits - Limits For not otherwise regulated 5
Air Contaminants Respirable fraction)
US - Wyoming Toxic and 1,3-diphenyltriazene (Particulates
Hazardous Substances Table not otherwise regulated 5
Z1 Limits for Air Contaminants (PNOR)(f)- Respirable fraction)
1,3-diphenyltriazene (Particulates
US - Michigan Exposure
not otherwise regulated, 5
Limits for Air Contaminants
Respirable dust)
MATERIAL DATA
1,3-DIPHENYLTRIAZENE:
It is the goal of the ACGIH (and other Agencies) to recommend TLVs (or their equivalent) for all substances for which there
is evidence of health effects at airborne concentrations encountered in the workplace.
At this time no TLV has been established, even though this material may produce adverse health effects (as evidenced in
animal experiments or clinical experience). Airborne concentrations must be maintained as low as is practically possible and
occupational exposure must be kept to a minimum.
NOTE: The ACGIH occupational exposure standard for Particles Not Otherwise Specified (P.N.O.S) does NOT apply.
Sensory irritants are chemicals that produce temporary and undesirable side-effects on the eyes, nose or throat. Historically
occupational exposure standards for these irritants have been based on observation of workers' responses to various airborne
concentrations. Present day expectations require that nearly every individual should be protected against even minor sensory
irritation and exposure standards are established using uncertainty factors or safety factors of 5 to 10 or more. On occasion
animal no-observable-effect-levels (NOEL) are used to determine these limits where human results are unavailable. An
additional approach, typically used by the TLV committee (USA) in determining respiratory standards for this group of
chemicals, has been to assign ceiling values (TLV C) to rapidly acting irritants and to assign short-term exposure limits (TLV
STELs) when the weight of evidence from irritation, bioaccumulation and other endpoints combine to warrant such a limit. In
contrast the MAK Commission (Germany) uses a five-category system based on intensive odour, local irritation, and
elimination half-life. However this system is being replaced to be consistent with the European Union (EU) Scientific
Committee for Occupational Exposure Limits (SCOEL); this is more closely allied to that of the USA.
OSHA (USA) concluded that exposure to sensory irritants can:
cause inflammation
cause increased susceptibility to other irritants and infectious agents
lead to permanent injury or dysfunction
permit greater absorption of hazardous substances and
acclimate the worker to the irritant warning properties of these substances thus increasing the risk of overexposure.
PERSONAL PROTECTION
Consult your EHS staff for recommendations
EYE
Safety glasses with side shields.
Chemical goggles.
Contact lenses pose a special hazard; soft lenses may absorb irritants and all lenses concentrate them. DO NOT wear
contact lenses.
HANDS/FEET
Suitability and durability of glove type is dependent on usage. Important factors in the selection of gloves include: such as:
frequency and duration of contact,
chemical resistance of glove material,
glove thickness and
dexterity
Select gloves tested to a relevant standard (e.g. Europe EN 374, US F739).
When prolonged or frequently repeated contact may occur, a glove with a protection class of 5 or higher (breakthrough time
greater than 240 minutes according to EN 374) is recommended.
When only brief contact is expected, a glove with a protection class of 3 or higher (breakthrough time greater than 60
minutes according to EN 374) is recommended.
Contaminated gloves should be replaced.
Gloves must only be worn on clean hands. After using gloves, hands should be washed and dried thoroughly. Application of a
non-perfumed moisturiser is recommended.
Experience indicates that the following polymers are suitable as glove materials for protection against undissolved, dry solids,
where abrasive particles are not present.
polychloroprene
nitrile rubber
butyl rubber
fluorocaoutchouc
polyvinyl chloride
Gloves should be examined for wear and/ or degradation constantly.
OTHER
Overalls.
P.V.C. apron.
Barrier cream.
Skin cleansing cream.
Eye wash unit.
Respirators may be necessary when engineering and administrative controls do not adequately prevent exposures.
The decision to use respiratory protection should be based on professional judgment that takes into account toxicity
information, exposure measurement data, and frequency and likelihood of the worker's exposure - ensure users are not
subject to high thermal loads which may result in heat stress or distress due to personal protective equipment (powered,
positive flow, full face apparatus may be an option).
Published occupational exposure limits, where they exist, will assist in determining the adequacy of the selected respiratory
. These may be government mandated or vendor recommended.
Certified respirators will be useful for protecting workers from inhalation of particulates when properly selected and fit tested
as part of a complete respiratory protection program.
Use approved positive flow mask if significant quantities of dust becomes airborne.
Try to avoid creating dust conditions.
RESPIRATOR
Protection Factor Half-Face Respirator Full-Face Respirator Powered Air Respirator
10 x PEL P1 - PAPR-P1
Air-line* - -
50 x PEL Air-line** P2 PAPR-P2
100 x PEL - P3 -
Air-line* -
100+ x PEL - Air-line** PAPR-P3
* - Negative pressure demand ** - Continuous flow
Explanation of Respirator Codes:
Class 1 low to medium absorption capacity filters.
Class 2 medium absorption capacity filters.
Class 3 high absorption capacity filters.
PAPR Powered Air Purifying Respirator (positive pressure) cartridge.
Type A for use against certain organic gases and vapors.
Type AX for use against low boiling point organic compounds (less than 65篊).
Type B for use against certain inorganic gases and other acid gases and vapors.
Type E for use against sulfur dioxide and other acid gases and vapors.
Type K for use against ammonia and organic ammonia derivatives
Class P1 intended for use against mechanically generated particulates of sizes most commonly encountered in industry, e.g.
asbestos, silica.
Class P2 intended for use against both mechanically and thermally generated particulates, e.g. metal fume.
Class P3 intended for use against all particulates containing highly toxic materials, e.g. beryllium.
The local concentration of material, quantity and conditions of use determine the type of personal protective equipment
required.
Use appropriate NIOSH-certified respirator based on informed professional judgement. In conditions where no reasonable
estimate of exposure can be made, assume the exposure is in a concentration IDLH and use NIOSH-certified full face
pressure demand SCBA with a minimum service life of 30 minutes, or a combination full facepiece pressure demand SAR with
auxiliary self-contained air supply. Respirators provided only for escape from IDLH atmospheres shall be NIOSH-certified for
escape from the atmosphere in which they will be used.
ENGINEERING CONTROLS
Local exhaust ventilation is required where solids are handled as powders or crystals; even when particulates are relatively
large, a certain proportion will be powdered by mutual friction.
Exhaust ventilation should be designed to prevent accumulation and recirculation of particulates in the workplace.
If in spite of local exhaust an adverse concentration of the substance in air could occur, respiratory protection should be
considered. Such protection might consist of:
(a): particle dust respirators, if necessary, combined with an absorption cartridge;
(b): filter respirators with absorption cartridge or canister of the right type;
(c): fresh-air hoods or masks
Build-up of electrostatic charge on the dust particle, may be prevented by bonding and grounding.
Powder handling equipment such as dust collectors, dryers and mills may require additional protection measures such as
explosion venting.
Air contaminants generated in the workplace possess varying "escape" velocities which, in turn, determine the "capture
velocities" of fresh circulating air required to efficiently remove the contaminant.
Type of Contaminant: Air Speed:
direct spray, spray painting in shallow booths, drum filling,
conveyer loading, crusher dusts, gas discharge (active 1-2.5 m/s (200-500 f/min.)
generation into zone of rapid air motion)
grinding, abrasive blasting, tumbling, high speed wheel
generated dusts (released at high initial velocity into zone of 2.5-10 m/s (500-2000 f/min.)
very high rapid air motion).
Within each range the appropriate value depends on:
Lower end of the range Upper end of the range
1: Room air currents minimal or favorable to capture 1: Disturbing room air currents
2: Contaminants of low toxicity or of nuisance value only 2: Contaminants of high toxicity
3: Intermittent, low production. 3: High production, heavy use
4: Large hood or large air mass in motion 4: Small hood-local control only
Simple theory shows that air velocity falls rapidly with distance away from the opening of a simple extraction pipe. Velocity
generally decreases with the square of distance from the extraction point (in simple cases). Therefore the air speed at the
extraction point should be adjusted, accordingly, after reference to distance from the contaminating source. The air velocity at
the extraction fan, for example, should be a minimum of 4-10 m/s (800-2000 f/min) for extraction of crusher dusts generated 2
meters distant from the extraction point. Other mechanical considerations, producing performance deficits within the extraction
apparatus, make it essential that theoretical air velocities are multiplied by factors of 10 or more when extraction systems are
installed or used.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL PROPERTIES
Solid.
Does not mix with water.
State Divided solid Molecular Weight 197.24
Melting Range (癋) 204.8 Viscosity Not Applicable
Boiling Range (癋) 294.8 Solubility in water (g/L) Immiscible
Flash Point (癋) Not available pH (1% solution) Not applicable
Decomposition Temp (癋) 266 pH (as supplied) Not applicable
Autoignition Temp (癋) Not available Vapour Pressure (mmHG) Negligible
Upper Explosive Limit (%) Not available. Specific Gravity (water=1) Not available
Lower Explosive Limit (%) Not available Relative Vapor Density (air=1) 6.8
Volatile Component (%vol) Negligible Evaporation Rate Not applicable
APPEARANCE
Small gold crystals; does not mix with water. Soluble in benzene, ether, hot alcohol. Decomposition starts at 130 deg C. with
major decomposition at 188 deg C.
Section 10 - CHEMICAL STABILITY
CONDITIONS CONTRIBUTING TO INSTABILITY
Presence of incompatible materials.
Product is considered stable.
Hazardous polymerization will not occur.
STORAGE INCOMPATIBILITY
Many arylamines (aromatic amines such as aniline, N-ethylaniline, o-toluidine, xylidine etc. and their mixtures) are
hypergolic (ignite spontaneously) with red fuming nitric acid. When the amines are dissolved in triethylamine, ignition occurs
at -60 deg. C. or less.
Various metal oxides and their salts may promote ignition of amine-red fuming nitric acid systems. Soluble materials such
as copper(I) oxide, ammonium metavanadate are effective; insoluble materials such as copper(II) oxide, iron(II) oxide,
potassium dichromate are also effective.
Avoid oxidizing agents, acids, acid chlorides, acid anhydrides.
A number of triazene derivatives bearing hydrogen, cyano, hydroxy or nitroso groups on the terminal nitrogen of the chain are
unstable, mainly to heat. Purification of triazenes by vacuum sublimation carries a risk explosion.
For incompatible materials - refer to Section 7 - Handling and Storage.
Section 11 - TOXICOLOGICAL INFORMATION
1,3-diphenyltriazene
TOXICITY AND IRRITATION
unless otherwise specified data extracted from RTECS - Register of Toxic Effects of Chemical Substances.
Asthma-like symptoms may continue for months or even years after exposure to the material ceases. This may be due to a
non-allergenic condition known as reactive airways dysfunction syndrome (RADS) which can occur following exposure to high
levels of highly irritating compound. Key criteria for the diagnosis of RADS include the absence of preceding respiratory
disease, in a non-atopic individual, with abrupt onset of persistent asthma-like symptoms within minutes to hours of a
documented exposure to the irritant. A reversible airflow pattern, on spirometry, with the presence of moderate to severe
bronchial hyperreactivity on methacholine challenge testing and the lack of minimal lymphocytic inflammation, without
eosinophilia, have also been included in the criteria for diagnosis of RADS. RADS (or asthma) following an irritating inhalation
is an infrequent disorder with rates related to the concentration of and duration of exposure to the irritating substance.
Industrial bronchitis, on the other hand, is a disorder that occurs as result of exposure due to high concentrations of irritating
substance (often particulate in nature) and is completely reversible after exposure ceases. The disorder is characterised by
dyspnea, cough and mucus production.
No significant acute toxicological data identified in literature search.
Gastrointestinal tumours recorded.
Equivocal tumourigen by RTECS criteria.
CARCINOGEN
DIAZOAMINOBENZENE US Environmental Defense Scorecard Suspected Carcinogens Reference(s) NTP-BR
Section 12 - ECOLOGICAL INFORMATION
Refer to data for ingredients, which follows:
1,3-DIPHENYLTRIAZENE:
Aromatic amines (arylamines), particularly primary aromatic amines, covalently and irreversibly bind to humic substances
present in most natural waters.
All metabolites with moieties of: anilines, benzidines and toluidines are of environmental concern. Anilines and benzidines are
both acutely toxic and toxic depending on the specific aquatic species (except algae). Toluidines represent a similar concern, It
has been speculated that aqueous solutions of aromatic amines can be oxidised by organic radicals, but there are no actual
data on reaction rates. Based on a study of reaction rate data for these compounds an estimate of the half-life of aromatic
amines in water is approximately 100 days, assuming a peroxy radical concentration of 10-10 mole/L in sunlit, oxygenated
water.
DO NOT discharge into sewer or waterways.
Ecotoxicity
Ingredient Persistence: Water/Soil Persistence: Air Bioaccumulation Mobility
1,3-diphenyltriazene HIGH LOW MED
Section 13 - DISPOSAL CONSIDERATIONS
Disposal Instructions
All waste must be handled in accordance with local, state and federal regulations.
?Puncture containers to prevent re-use and bury at an authorized landfill.
Legislation addressing waste disposal requirements may differ by country, state and/ or territory. Each user must refer to laws
operating in their area. In some areas, certain wastes must be tracked.
A Hierarchy of Controls seems to be common - the user should investigate:
Reduction
Reuse
Recycling
Disposal (if all else fails)
This material may be recycled if unused, or if it has not been contaminated so as to make it unsuitable for its intended use.
Shelf life considerations should also be applied in making decisions of this type. Note that properties of a material may change
in use, and recycling or reuse may not always be appropriate.
DO NOT allow wash water from cleaning equipment to enter drains. Collect all wash water for treatment before disposal.
Recycle wherever possible.
Consult manufacturer for recycling options or consult Waste Management Authority for disposal if no suitable treatment or
disposal facility can be identified.
Dispose of by: Burial in a licensed land-fill or Incineration in a licensed apparatus (after admixture with suitable combustible
material)
Decontaminate empty containers. Observe all label safeguards until containers are cleaned and destroyed.
Section 14 - TRANSPORTATION INFORMATION
NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS: DOT, IATA, IMDG
Section 15 - REGULATORY INFORMATION
1,3-diphenyltriazene (CAS: 136-35-6) is found on the following regulatory lists;
"Canada Domestic Substances List (DSL)","US - California Proposition 65 - Carcinogens","US - California Proposition 65 -
Priority List for the Development of NSRLs for Carcinogens","US - Maine Chemicals of High Concern List","US National
Toxicology Program (NTP) 11th Report Part B. Reasonably Anticipated to be a Human Carcinogen","US Toxic Substances
Control Act (TSCA) - Inventory","US TSCA Section 8 (a) - Preliminary Assessment Information Rules (PAIR) - Reporting
List","US TSCA Section 8 (d) - Health and Safety Data Reporting"
Section 16 - OTHER INFORMATION
LIMITED EVIDENCE
Cumulative effects may result following exposure*.
* (limited evidence).
Reasonable care has been taken in the preparation of this information, but the author makes no warranty
of merchantability or any other warranty, expressed or implied, with respect to this information. The author
makes no representations and assumes no liability for any direct, incidental or consequential damages
resulting from its use. For additional technical information please call our toxicology department on +800
CHEMCALL.
Classification of the mixture and its individual components has drawn on official and authoritative sources as well as
independent review by the Chemwatch Classification committee using available literature references.
A list of reference resources used to assist the committee may be found at:
www.chemwatch.net/references.
The (M)SDS is a Hazard Communication tool and should be used to assist in the Risk Assessment. Many factors determine
whether the reported Hazards are Risks in the workplace or other settings. Risks may be determined by reference to
Exposures Scenarios. Scale of use, frequency of use and current or available engineering controls must be considered.
This document is copyright. Apart from any fair dealing for the purposes of private study, research, review
or criticism, as permitted under the Copyright Act, no part may be reproduced by any process without
written permission from CHEMWATCH. TEL (+61 3) 9572 4700.
Issue Date: Jul-21-2008
Print Date:Apr-21-2010
|