MATERIAL SAFETY DATA SHEET
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
1. Chemical Product and Company Identification
BOC Gases, BOC Gases
Division of Division of
The BOC Group, Inc. BOC Canada Limited
575 Mountain Avenue 5975 Falbourne Street, Unit 2
Murray Hill, NJ 07974 Mississauga, Ontario L5R 3W6
TELEPHONE NUMBER: (908) 464-8100 TELEPHONE NUMBER: (905) 501-1700
24-HOUR EMERGENCY TELEPHONE NUMBER: 24-HOUR EMERGENCY TELEPHONE NUMBER:
CHEMTREC (800) 424-9300 (905) 501-0802
EMERGENCY RESPONSE PLAN NO: 20101
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
CHEMICAL NAME: Acetaldehyde (聰 0.01%) in nitrogen
COMMON NAMES/SYNONYMS: Acetaldehyde (聰 0.01%) in nitrogen
TDG (Canada) CLASSIFICATION: 2.2
WHMIS CLASSIFICATION: A , D2B
PREPARED BY: Loss Control (908)464-8100/(905)501-1700
PREPARATION DATE: 6/1/95
REVIEW DATES: 6/18/96
2. Composition, Information on Ingredients
PEL-OSHA1 TLV-ACGIH2
INGREDIENT % VOLUME LD50 or LC50
Route/Species
聰 0.01
ACETALDEHYDE 100 ppm 100 ppm LC50: 17000 ppm/4H
FORMULA: C2H4O 150 ppm STEL 150 ppm STEL
inhalation/ hamster
CAS: 75-07-0
RTECS #: AB1925000
聲 99.99
NITROGEN Simple Asphyxiant Simple Not Available
FORMULA: N2 Asphyxiant
CAS: 7727-37-9
RTECS #: QW9700000
1
As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
2
As stated in the ACGIH 1994-95 Threshold Limit Values for Chemical Substances and Physical Agents
3. Hazards Identification
EMERGENCY OVERVIEW
Product is a non-flammable, colorless gas with fruity odor which may cause asphyxiation in high
concentrations. Gas may accumulate in confined or poorly ventilated areas, dis- placing oxygen and
causing unconsciousness or death. Eye and skin contact may cause irritation. Use only with
adequate ventilation.
MSDS: G-213
Revised: 6/18/96 Page 1 of 7
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
ROUTE OF ENTRY:
Skin Contact Skin Absorption Eye Contact Inhalation Ingestion
Yes No Yes Yes Yes
HEALTH EFFECTS:
Exposure Limits Irritant Sensitization
Yes Yes No
Teratogen Reproductive Hazard Mutagen
No No No
Synergistic Effects
None known
Carcinogenicity: -- NTP: 2 IARC: 2B OSHA: No ACGIH: A3
EYE EFFECTS:
Contact with gas may cause changes in light sensitivity or irritation with associated redness swelling and pain.
SKIN EFFECTS:
Contact with gas may cause skin irritation.
INGESTION EFFECTS:
Unlikely; product is a gas.
INHALATION EFFECTS:
Inhalation of this product may cause irritation of the mucous membranes or asphyxiation by displacing the
oxygen content in the air necessary for life.
SIGNS AND SYMPTOMS:
The following effects of asphyxiation are representative and it is possible that none of these symptoms may
occur: Loss of balance or dizziness; tightness in the frontal area of the forehead; tingling of the tongue,
fingertips or toes; weakened speech leading to the inability to utter sounds; rapid reduction in the ability to
perform movements; reduced consciousness of surroundings; lethargy; loss of tactile sensations; and heightened
mental activity.
CHRONIC:
Long-term skin exposure may cause dermatitis.
CARCINOGENICITY:
Experimental studies indicate that acetaldehyde may increase risks of developing cancer (See Section 11,
TOXICOLOGICAL INFORMATION )
NFPA HAZARD CODES HMIS HAZARD CODES RATINGS SYSTEM
Health: 1 Health: 1 0 = No Hazard
Flammability: 0 Flammability: 0 1 = Slight Hazard
Reactivity: 0 Reactivity: 0 2 = Moderate Hazard
3 = Serious Hazard
4 = Severe Hazard
4. First Aid Measures
EYES:
MSDS: G-213
Revised: 6/18/96 Page 2 of 7
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
Flush eyes with large amounts of water for at least 15 minutes holding eyelids open to ensure adequate rinsing.
If irritation persists, seek immediate medical attention.
SKIN:
Remove contaminated clothing and flush affected area with large quantities of water If irritation persists, seek
medical attention.
INGESTION:
Unlikely; product is a gas.
INHALATION:
PROMPT REMOVAL FROM THE CONTAMINATED AREA AND IMMEDIATE MEDICAL ATTENTION
IS MANDATORY IN ALL CASES OF OVEREXPOSURE. RESCUE PERSONNEL SHOULD BE
EQUIPPED WITH SELF-CONTAINED BREATHING APPARATUS.
Immediately remove to fresh air. If breathing is difficult, administer oxygen. If breathing has stopped, give
artificial respiration. Seek immediate medical attention.
5. Fire Fighting Measures
Conditions of Flammability: Non-flammable
Flash point: Method: Autoignition
Gas Not Applicable Temperature: Not determined
LEL(%): Not determined UEL(%): Not determined
Hazardous combustion products: None
Sensitivity to mechanical shock: None
Sensitivity to static discharge: None
FIRE AND EXPLOSION HAZARDS:
The majority of this product constitutes a nonflammable, inert gas. Containers may rupture or explode from
pressure when exposed to heat or flames.
EXTINGUISHING MEDIA:
Any, Use media appropriate for surrounding fire.
FIRE FIGHTING INSTRUCTION:
Continue to cool surrounding containers until well after flames are extinguished. Firefighters should wear a full-
facepiece, NIOSH/MSHA-approved self-contained breathing apparatus (SCBA) operated in positive pressure
mode and full turnout gear.
If flame is extinguished and flow of gas continues, increase ventilation to prevent flammable mixture formation
in low areas or pockets.
6. Accidental Release Measures
Isolate hazard area, evacuate personnel and deny entry to unauthorized/unprotected individuals. Personnel
entering area should wear appropriate protective equipment including respiratory protection suitable for
unknown concentrations. Stop the flow of gas if it can be done without risk. Ventilate enclosed spaces.
Personnel should not re-enter hazard area until adequate oxygen is re-established. If a leak is in user鈥檚
equipment, be certain to purge piping with an inert gas prior to attempting repairs. If leak is in container or
MSDS: G-213
Revised: 6/18/96 Page 3 of 7
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
container valve, contact the appropriate emergency telephone number listed in Section 1 or call your closest
BOC location.
7. Handling and Storage
Electrical classification:
Nonhazardous.
Use only in well-ventilated areas. Valve protection caps must remain in place unless container is secured with
valve protection outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand truck for
cylinder movement. Use a pressure reducing regulator when connecting cylinder to lower pressure (< 3000
psig) piping or systems. Do not heat cylinder by any means to increase the discharge rate of product from the
cylinder. Use a check valve or trap in the discharge line to prevent hazardous back flow into the cylinder.
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area of non-combustible construction
away from heavily trafficked areas and emergency exits. Do not allow the temperature where cylinders are
stored to exceed 125 掳F. Cylinders should be stored upright and firmly secured to prevent FALLING OR
BEING KNOCKED OVER. Use a 鈥渇irst in-first out鈥? inventory system to prevent full cylinders being stored for
excessive periods of time.
For additional recommendations, consult Compressed Gas Association Pamphlet P-1 and G-12.
Stationary customer site vessels should operate in accordance with the manufacturer's and BOC鈥檚 instruction. Do
not attempt to repair, adjust or in any other way modify the operation of these vessels. If there is a malfunction
or other type of operations problem with the vessel, contact the closest BOC location immediately.
Never carry a compressed gas cylinder or a container of a gas in cryogenic liquid form in an enclosed space such
as a car trunk, van or station wagon. A leak can result in a fire, explosion, asphyxiation or a toxic exposure.
8. Exposure Controls, Personal Protection
EXPOSURE LIMITS1:
PEL-OSHA2 TLV-ACGIH3
INGREDIENT % VOLUME LD50 or LC50
Route/Species
聰 0.01
ACETALDEHYDE 100 ppm 100 ppm LC50: 17000 ppm/4H
FORMULA: C2H4O 150 ppm STEL 150 ppm STEL
inhalation/ hamster
CAS: 75-07-0
RTECS #: AB1925000
聲 99.99
NITROGEN Simple Asphyxiant Simple Not Available
FORMULA: N2 Asphyxiant
CAS: 7727-37-9
RTECS #: QW9700000
1
Refer to individual state of provincial regulations, as applicable, for limits which may be more stringent than
those listed here.
2
As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
3
As stated in the ACGIH 1994-1995 Threshold Limit Values for Chemical Substances and Physical Agents.
ENGINEERING CONTROLS:
Use local exhaust in combination with general ventilation to prevent accumulation of air contaminants above
acceptable exposure guidelines and to maintain oxygen levels above 19.5%.
EYE/FACE PROTECTION:
Chemical safety goggles are recommended.
SKIN PROTECTION:
MSDS: G-213
Revised: 6/18/96 Page 4 of 7
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
Aprons, faceshields, and cold-impervious insulating gloves should be worn where contact with cryogenic liquid
may occur.
RESPIRATORY PROTECTION:
A NIOSH/MSHA-approved full-facepiece SCBA operated in positive pressure mode and/or any full-facepiece
supplied air respirator operated in a positive pressure mode in combination with an auxiliary SCBA operated in
positive pressure mode should be used for high or unknown concentrations. Respirators should be stored in an
area not likely to be contaminated.
Refer to OSHA 19109.134, ANSI Z88, 2-1992, and NIOSH Respirator Decision Logic for additional guidance
for respiratory protection.
OTHER/GENERAL PROTECTION:
Safety shoes should be worn.
9. Physical and Chemical Properties
PARAMETER VALUE UNITS
Physical state (gas, liquid, solid) : Gas
Vapor pressure : Above critical temp.
Vapor density (Air = 1) : 0.97
Evaporation point : Not Available
o
Boiling point : -320.0 F
o
C
: -195.8
o
Freezing point : -345.0 F
o
: -209.2 C
pH : Not Applicable
Specific gravity : 1.105
Oil/water partition coefficient : Not Available
Solubility (H20) : Slightly soluble
Odor threshold : High Odor Threshold:
: 4.14 mg/m3
: Low Odor Threshold:
: 0.0002 mg/m3
Odor and appearance : Colorless gas/vapor with pungent, fruity odor.
10. Stability and Reactivity
STABILITY:
Stable under normal conditions.
INCOMPATIBLE MATERIALS:
Strong oxidizers, acids, acid anhydrides, alcohols, NH3 and amines, ketones, phenols, HCN, H2S, halogens, P,
isocyanates and strong alkalis.
HAZARDOUS DECOMPOSITION PRODUCTS:
Prolonged contact with air may form explosive peroxides.
HAZARDOUS POLYMERIZATION:
Acetaldehyde polymerizes violently in the presence of traces of metals or acids.
MSDS: G-213
Revised: 6/18/96 Page 5 of 7
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
11. Toxicological Information
EYE EFFECTS:
Eye irritation of the human eye is detectable at 50 ppm acetaldehyde. Excessive irritation for chronic industrial
exposure generally occurs above 200 ppm acetaldehyde. Changes in light sensitivity of the eye were reported in
humans exposed to 0.012 mg/m3 acetaldehyde.
SKIN EFFECTS:
500 mg Acetaldehyde applied to rabbit skin (500 mg open) produced effects described as mild without further
qualification.
ACUTE ORAL EFFECTS:
LD50: 661 mg/kg for acetaldehyde (oral; rat).
LD50: 900 mg/kg for acetaldehyde (oral; mouse)
ACUTE INHALATION EFFECTS:
LC50: 20100 mg/m3 for acetaldehyde (inhalation; mammal)
CHRONIC:
Acetaldehyde has produced tumors and cancer in long-term experiments involving animals.
The International Agency for Research on Cancer (IARC) classifies acetaldehyde as possibly carcinogenic to
humans. The National Toxicology Program (NTP) considers acetaldehyde reasonably anticipated to be a
carcinogen. The American Conference of Governmental Industrial Hygienists (ACGIH) considers
acetaldehyde an animal carcinogen.
OTHER:
Acetaldehyde has been active in short-term assays for DNA damage and repair, mutagenicity, chromosome
aberrations, sister chromatid exchanges, micronucleus test and oncogenic transformation.
12. Ecological Information
ENVIRONMENTAL FATE:
Acetaldehyde occurs as a natural product of combustion and photooxidation of atmospheric hydrocarbons and
produced photochemically in surface water. Release into water and land results in rapid volatilization and
degradation (Half life - 3 H for typical river). Atmospheric degradation of acetaldehyde occurs in a matter of
hours via reaction with hydroxyl radicals and photolysis.
13. Disposal Considerations
Do not attempt to dispose of waste or unused quantities. Return in the shipping container PROPERLY
LABELED, WITH ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP
IN PLACE to BOC Gases or authorized distributor for proper disposal.
Acetaldehyde is listed as a RCRA hazardous waste U001 (40 CFR 261.33).
14. Transport Information
PARAMETER United States DOT Canada TDG
PROPER SHIPPING NAME: Compressed Gas, n.o.s. Compressed Gas, n.o.s.
(Nitrogen, Acetaldehyde) (Nitrogen, Acetaldehyde)
2.2 2.2
HAZARD CLASS:
MSDS: G-213
Revised: 6/18/96 Page 6 of 7
PRODUCT NAME: ACETALDEHYDE (聰 0.01%) IN NITROGEN
UN 1956 UN 1956
IDENTIFICATION NUMBER:
NONFLAMMABLE GAS NONFLAMMABLE GAS
SHIPPING LABEL:
15. Regulatory Information
SARA TITLE III NOTIFICATIONS AND INFORMATION
SARA TITLE III - HAZARD CLASSES:
Acute Health Hazard
Chronic Health Hazard
Sudden Release of Pressure Hazard
SECTION 313 REPORTING REQUIREMENTS:
This product contains acetaldehyde below the de minimus concentration of 0.1%
CERCLA/SUPERFUND, 40 CFR 117, 302: This product contains acetaldehyde, a Reportable Quantity (RQ)
Substance and if 1,000 pounds are released, notification to the National Response Center, Washington, DC (1-
800-424-8802) is required.
Acetaldehyde is listed under the CAA Section 112(r) with a threshold quantity of 10,000 pounds.
CLEAN WATER ACT: Acetaldehyde is designated as a hazardous substance under section 311(b)(2)(A) of the
Federal Water Pollution Control Act and further regulated by the Clean Water Act Amendments of 1977 and
1978.
ATMOSPHERIC STANDARDS: Acetaldehyde is produced as an intermediate or a final product of process
units covered under standards of performance for equipment leaks of Volatile Organic Compounds (VOC) in the
Synthetic Organic Chemical Manufacturing Industry (SOCMI). (40 CFR 60.489).
CALIFORNIA PROPOSITION 65: Acetaldehyde is listed on Proposition 65 as a chemical known to the state
to cause cancer.
16. Other Information
Compressed gas cylinders shall not be refilled without the express written permission of the owner. Shipment of
a compressed gas cylinder which has not been filled by the owner or with his/her (written) consent is a
violation of transportation regulations.
DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES:
Although reasonable care has been taken in the preparation of this document, we extend no warranties and make
no representations as to the accuracy or completeness of the information contained herein, and assume no
responsibility regarding the suitability of this information for the user鈥檚 intended purposes or for the
consequences of its use. Each individual should make a determination as to the suitability of the information for
their particular purpose(s).
MSDS: G-213
Revised: 6/18/96 Page 7 of 7
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