CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 1 of 12
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME
CALCIUM HYPOCHLORITE, DRY
STATEMENT OF HAZARDOUS NATURE
Considered a Hazardous Substance according to the criteria
of the New Zealand Hazardous Substances New Organisms
legislation.
SUPPLIER
Company: Andrew Limited
Address:
3 Porana Road
Glenfield
AUCKLAND
Telephone: 09 444 3733
Telephone: 0800 429 628
Emergency Tel: 0800 243 622
Fax: 09 444 3838
HAZARD RATINGS
Flammability:
Toxicity:
Body Contact:
Reactivity:
Chronic:
SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4
PRODUCT USE
Used as an algicide, fungicide, bactericide, disinfectant,
steriliser, sanitiser and deodorant; an oxidising agent; and
a bleaching agent. It is also used in the refining of sugar.
WARNING: To avoid violent reaction, ALWAYS add material to
water and NEVER water to material. Material is mixed and
used in accordance with manufacturers directions
SYNONYMS
Cl2-O2.Ca Ca-Cl2-O2
Ca-O2-Cl2 Ca (ClO) 2
hypochlorous acid, calcium salt calcium chlorohydrochlorite
calcium hypochloride calcium oxychloride
bleaching powder B-K powder
Camporit Cal Hypo
Pool Chlorine (Victorian DG Regs) Hy-Chlor
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 2 of 12
Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION ...
Pittchlor CCH
HTH
Section 2 - COMPOSITION / INFORMATION ON INGREDIENTS
NAME CAS RN %
calcium hypochlorite, dry 7778-54-3 94 app.
may contain
calcium hydroxide hypochlorite 12394-14-8 (< 6 ^
calcium chloride 10043-52-4 (^
calcium hydroxide 1305-62-0 (
(Available chlorine >39%)
Decomposes when wet and gives off toxic
chlorine 7782-50-5
Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
HAZARD
5.1.1B Oxidising substance: medium hazard
6.1D Harmful if swallowed
8.3A Corrosive to eyes
9.1A Veryecotoxic in the aquatic environment
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 material can produce chemical burns within the oral cavity and
gastrointestinal tract following ingestion.
continued...
CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 3 of 12
Section 3 - HAZARDS IDENTIFICATION ...
EYE
The material can produce chemical burns to the eye following direct contact.
Vapours or mists may be extremely irritating.
When applied to the eye(s) of animals, the material produces severe ocular
lesions which are present twenty-four hours or more after instillation.
SKIN
The material can produce chemical burns following direct contact with the skin.
INHALED
Evidence shows, or practical experience predicts, that the material produces
irritation of the respiratory system in a substantial number of individuals
following inhalation.
CHRONIC HEALTH EFFECTS
Principal routes of exposure are usually by skin contact with the material ,
with the material in solution and inhalation of generated dust
Hypochlorite in pool water at concentrations of 1 ppm chlorine or less is non
irritating to eyes if the pH is higher than 7.2 (slightly alkaline); At lower pH
sensation of stinging, smarting of eyes with transient reddening may occur but
generally no injury.
Ingestion irritates the mouth, throat, and stomach. The hypochlorous acid
liberated in the stomach can cause wall perforation, toxaemia, haemorrhage
and death.
As with any chemical product, contact with unprotected bare skin; inhalation of
vapour, mist or dust in work place atmosphere; or ingestion in any form, should
be avoided by observing good occupational work practice.
Section 4 - FIRST AID MEASURES
SWALLOWED
- For advice, contact a Poisons Information Centre or a doctor at once.
- Urgent hospital treatment is likely to be needed.
- If swallowed do NOT induce vomiting.
- If vomiting occurs, lean patient forward or place on left side (head-down
position, if possible) to maintain open airway and prevent aspiration.
- Observe the patient carefully.
- Never give liquid to a person showing signs of being sleepy or with reduced
awareness; i.e. becoming unconscious.
- Give water to rinse out mouth, then provide liquid slowly and as much as
casualty can comfortably drink.
- Transport to hospital or doctor without delay.
EYE
If this product comes in contact with the eyes:
- Immediately hold eyelids apart and flush the eye continuously with 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.
- Continue flushing until advised to stop by the Poisons Information Centre or a
doctor, or for at least 15 minutes.
- Transport to hospital or doctor without delay.
- Removal of contact lenses after an eye injury should only be undertaken by
continued...
CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 4 of 12
Section 4 - FIRST AID MEASURES ...
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.
NOTES TO PHYSICIAN
For acute or repeated exposures to hypochlorite solutions:
- Release of small amounts of hypochlorous acid and acid gases from the stomach
following ingestion, is usuallytoo low to cause damage but may be irritating to
mucous membranes. Buffering with antacid may be helpful if discomfort is
evident.
- Evaluate as potential caustic exposure.
- Decontaminate skin and eyes with copious saline irrigation. Check exposed eyes
for corneal abrasions with fluorescein staining.
- Emesis or lavage and catharsis may be indicated for mild caustic exposure.
- Chlorine exposures require evaluation of acid/base and respiratory status.
- Inhalation of vapours or mists may result in pulmonary oedema.
ELLENHORN and BARCELOUX: Medical Toxicology.
Section 5 - FIRE FIGHTING MEASURES
FIRE FIGHTING
- May be violently or explosively reactive.
- Wear full body protective clothing with breathing apparatus.
- Prevent, by any means available, spillage from entering drains or water
course.
- Consider evacuation (or protect in place).
Alert Fire Brigade and tell them location and nature of hazard.
DO NOT approach containers suspected to be hot.
Cool fire exposed containers with water spray from a protected location.
Fight fire from a safe distance, with adequate cover.
FIRE/EXPLOSION HAZARD
Combustible . Combustible. Will burn if ignited.
Heating may cause expansion or decomposition leading to violent rupture of
containers
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 5 of 12
Section 6 - ACCIDENTAL RELEASE MEASURES
MINOR SPILLS
Clean up all spills immediately. Remove all ignition sources.
Wear protective clothing, impervious gloves and safety glasses.
Avoid contact with skin and eyes.
Use dry clean up procedures and avoid generating dust.
Refer to major spills.
MAJOR SPILLS
Restrict access to area. Clear area of personnel and move upwind DO NOT touch
the spill material
Alert Fire Brigade and tell them location and nature of hazard.
May be violently or explosively reactive. Wear full body protective
clothing with breathing apparatus. Prevent, by any means available,
spillage from entering drains or water course. Consider evacuation.
Shut off all possible sources of ignition and increase ventilation.
Use dry clean up procedures and avoid generating dust.
Recover uncontaminated product in clean, dry containers
Cover remainder with a weak reducing agent to destroy available chlorine and
mix with water.
Transfer sludge to suitable container and neutralise with soda ash.
Wash spill area with detergent, reducer and water.
PROTECTIVE ACTIONS FOR SPILL
PROTECTIVE ACTION ZONE
half
evacuation
downwind
direction
distance
wind down wind distance
isolation
distance
direction
half
evacuation downwind
INITIAL direction distance
ISOLATION
ZONE
From IERG(Canada/Australia)
Isolation Distance 25 metres
Downwind Protection Distance 100 metres
FOOTNOTES
1 PROTECTIVE ACTION ZONE is defined as the area in which people are at risk
of harmful exposure. This zone assumes that random changes in wind direction
confines the vapour plume to an area within 30 degrees on either side of the
predominant wind direction, resulting in a crosswind protective action distance
equal to the downwind protective action distance.
2 PROTECTIVE ACTIONS should be initiated to the extent possible, beginning with
those closest to the spill and working away from the site in the downwind
direction. Within the protective action zone a level of vapour concentration
may exist resulting in nearly all unprotected persons becoming incapacitated
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 6 of 12
Section 6 - ACCIDENTAL RELEASE MEASURES ...
and unable to take protective action and/or incurring serious or irreversible
health effects.
3 INITIAL ISOLATION ZONE is determined as an area, including upwind of the
incident, within which a high probability of localised wind reversal may
expose nearly all persons without appropriate protection to life-threatening
concentrations of the material.
4 SMALL SPILLS involve a leaking package of 200 litres (55 US gallons) or less,
such as a drum (jerrican or box with inner containers). Larger packages leaking
less than 200 litres and compressed gas leaking from a small cylinder are also
considered "small spills".
LARGE SPILLS involve many small leaking packages or a leaking package of
greater than 200 litres, such as a cargo tank, portable tank or a "one-tonne"
compressed gas cylinder.
5 Guide 140 is taken from the US DOT emergency response guide book.
6 IERG information is derived from CANUTEC - Transport Canada.
Section 7 - HANDLING AND STORAGE
PROCEDURE FOR HANDLING
Use good occupational work practice. and WARNING: To avoid violent reaction,
ALWAYS add material to water and NEVER water to material.
Avoid generating and breathing dust. Avoid contact with skin and eyes.
Avoid contact with incompatible materials.
Avoid all ignition sources. Avoid sources of heat.
Transport containers on a trolley
Avoid physical damage to containers.
Handle and open container with care . Use in a well-ventilated area
DO NOT return unused product to containers.
Always wash hands with soap and water after handling. Work clothes should be
laundered separately.
SUITABLE CONTAINER
Packaging as recommended by manufacturer.
Plastic drum or Metal can or Metal drum
- Check that containers are clearly labelled
STORAGE INCOMPATIBILITY
Avoid storage with incompatible substances. , strong acids , combustible
materials
STORAGE REQUIREMENTS
Store in a cool, dry place. Store in a well-ventilated area.
Store in a flame proof area.
Keep storage area free of debris, waste and combustibles.
Store away from incompatible materials.
No smoking, naked lights, heat or ignition sources.
Keep containers securely sealed
Protect containers against physical damage
continued...
CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 7 of 12
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION
EXPOSURE CONTROLS
No exposure limits set by NOHSC or ACGIH
ODOUR SAFETY FACTOR (OSF)
OSF=1.6 (calcium hydroxide hypochlorite)
Exposed individuals are NOT reasonablyexpected to be warned, by smell, that the
Exposure Standard is being exceeded.
Odour SafetyFactor (OSF) is determined to fall into either Class C, D or E.
The Odour SafetyFactor (OSF) is defined as:
OSF= Exposure Standard (TWA) ppm/ Odour Threshold Value (OTV) ppm
Classification into classes follows:
Class OSF Description
A 550 Over 90% of exposed
individuals are aware by
smell that the Exposure
Standard (TLV-TWA for
example) is being
reached, even when
distracted by working
activities
B 26-550 As "A" for 50-90% of
persons being distracted
C 1-26 As "A" for less than 50%
of persons being
distracted
D 0.18-1 10-50% of persons aware
of being tested perceive
by smell that the
Exposure Standard is
being reached
E <0.18 As "D" for less than 10%
of persons aware of being
tested
EXPOSURE STANDARDS FOR MIXTURE
"Worst Case" computer-aided prediction of vapour components/concentrations:
Composite Exposure Standard for Mixture (TWA) (mg/m?: 1.5 mg/m?br>
If the breathing zone concentration of ANYof the components listed below is
exceeded, "Worst Case" considerations deem the individual to be overexposed.
Component Breathing Zone ppm Breathing Zone mg/m?Mixture Conc: (%)
Component Breathing zone Breathing Zone Mixture Conc
(ppm) (mg/m? (%)
chlorine 0.50 1.5000 0.1
Operations which produce a spray/mist or fume/dust, introduce particulates to
the breathing zone.
If the breathing zone concentration of ANYof the components listed below is
exceeded, "Worst Case" considerations deem the individual to be overexposed.
At the "Composite Exposure Standard for Mixture" (TWA) (mg/m?: 0.1 mg/m?br>
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 8 of 12
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION ...
INGREDIENT DATA
CALCIUMHYDROXIDE:
TLVTWA: 5 mg/m?[ACGIH]
PEL Total particulate: 15mg/m?[OSHAZ1]
PEL Respirable fraction : 5mg/m?[OSHAZ1]
TLVTWA: 5 mg/m?br>
ES TWA: 5 mg/m?br>
OES TWA: 5 mg/m?br>
In the absence of reports of adverse effects from exposure and the
recognised lesser alkalinity of the alkaline earths compared with the
the alkali hydroxides the relativelyhigh value of TLV-TWA is recommended.
This value corresponds in total alkalinity to 5 mg/m?of sodium hydroxide
or 2.5 times the TLV-TWA of sodium hydroxide.
CHLORINE:
TLVTWA: 0.5 ppm A4 [ACGIH]
TLVSTEL: 1 ppm A4 [ACGIH]
PEL Ceiling: 1 ppm, 3 mg/m?[OSHAZ1] [OSHAZ1]
TLVTWA: 0.5 ppm, 1.5 mg/m? STEL: 1 ppm, 2.9 mg/m? A4
NOTE: This substance has been classified by the ACGIH as A4 NOT classifiable as
causing Cancer in humans
ES Peak: 1 ppm, 3 mg/m?br>
OES TWA: 0.5 ppm, 1.5 mg/m? STEL: 1 ppm, 2.9 mg/m?br>
MAK value: 0.5 ppm, 1.5 mg/m?br>
MAK Category I Peak Limitation: For local irritants Allows excursions of twice
the MAK value for 5 minutes at a time, 8 times per shift.
MAK Group C: There is no reason to fear risk of damage to the developing embryo
when MAK and BAT values are observed.
MAK values, and categories and groups are those recommended within the
Federal Republic of Germany
IDLH Level: 10 ppm
Odour Threshold Value: 0.08 ppm (detection) - olfactory fatigue may develop
NOTE: Detector tubes for chlorine, measuring in excess of 0.2 ppm, are
commerciallyavailable. Long-term measurements (8 hrs) may be
conducted to detect concentrations exceeding 0.13 ppm.
Smell is not a good indicator of severity of exposure in the range
0.5 to 2 ppm. In this range subjects found exposure unpleasant with
itching and burning of the throat reported and occasionallyan urge to
cough. Significant differences in the responses of males and females were
also recorded with females often reporting headache and drowsiness.
Exposure at 1 ppm chlorine for 8 hours produced significant changes in
pulmonary function and increased subjective irritation. Similar 8 hour
exposures at 0.5 ppm produced no significant pulmonary function changes
and less severe subjective irritation. Exposures for 2 hours at 2 ppm
chlorine produced no significant changes in pulmonary irritation.
An 8 hour exposure at 1.5 ppm produced increased mucous secretion from
the nose and increased mucous in the hypopharynx.
Exposure at or below the TLV-TWA and STEL is thought to protect the worker
against annoying symptoms in nose, throat and conjunctiva and declines in
pulmonary function.
continued...
CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 9 of 12
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION ...
PERSONAL PROTECTION
EYE
- Chemical goggles.
- Full face shield.
- Contact lenses pose a special hazard; soft lenses may absorb irritants and all
lenses concentrate them.
HANDS/FEET
Impervious, gauntlet length gloves or Elbow length PVC gloves
Neoprene gloves
Protective footwear or PVC boots
OTHER
Cotton washable overalls buttoned to the neck and wrist and washable hat and PVC
apron
Ensure there is ready access to an emergency shower
- Ensure that there is ready access to eye wash unit
- Impervious protective clothing
In case of emergency: ,
- Full protective suit.
ENGINEERING CONTROLS
DO NOT handle directly. Wear gloves and use scoop / tongs / tools
Use in a well-ventilated area
Provide adequate ventilation in warehouse or closed storage areas.
If exposure to workplace dust is not controlled, respiratory protection is
required; wear SAA approved dust respirator.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL PROPERTIES
Solid.
Mixes with water.
Contact with acids liberates toxic gas.
Molecular Weight: 142.98 Boiling Range (癈): Not applicable.
Melting Range (癈): 100 decomposes Specific Gravity (water=1): 2.35
Solubility in water (g/L): Miscible pH (as supplied): Not applicable
pH (1% solution): 11.5 @ 5% Vapour Pressure (kPa): Not applicable
Volatile Component (%vol): Nil @ 38 C. Evaporation Rate: Non Volatile
Relative Vapour Density (air=1): Not applicable. Flash Point (癈): Non flammable
Lower Explosive Limit (%): Not available Upper Explosive Limit (%): Not available.
Autoignition Temp (癈): Not applicable Decomposition Temp (癈):
State: Divided solid
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 10 of 12
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES ...
APPEARANCE
White powder with a pungent chlorine odour; soluble in water.
Powerful oxidising agent; unstable to heat, friction or direct sunlight.
Wetting of solid material can cause heating and decomposition, giving off
oxygen and highly toxic chlorine gas.
Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION
CONDITIONS CONTRIBUTING TO INSTABILITY
Presence of incompatible materials . Storage in unsealed containers
Presence of heat source and direct sunlight
Presence of elevated temperatures. Presence of water
Section 11 - TOXICOLOGICAL INFORMATION
calcium hypochlorite, dry
TOXICITY IRRITATION
Oral (rat) LD50: 850 mg/kg
Nil reported
CALCIUMHYDROXIDE:
TOXICITY IRRITATION
Oral (rat) LD50: 7340 mg/kg Eye (rabbit): 10 mg - SEVERE
CHLORINE:
TOXICITY IRRITATION
Inhalation (human) LCLo: 2530 mg/m3/30 minutes
Inhalation (human) LCLo: 500 ppm/5 minutes
Inhalation (rat) LC50: 293 ppm/1 hour
Section 12 - ECOLOGICAL INFORMATION
The material is classified as an ecotoxin* because the Fish LC50 (96 hours) is
less than or equal to 0.1 mg/l
* Classification of Substances as Ecotoxic (Dangerous to the Environment)
Appendix8, Table 1
Compiler's Guide for the Preparation of International Chemical SafetyCards:
1993 Commission of the European Communities
The material is classified as an ecotoxin* because the Daphnia EC50 (48 hours)
is less than or equal to 0.1 mg/l
* Classification of Substances as Ecotoxic (Dangerous to the Environment)
Appendix8, Table 1
Compiler's Guide for the Preparation of International Chemical SafetyCards:
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 11 of 12
Section 12 - ECOLOGICAL INFORMATION ...
1993 Commission of the European Communities
DO NOT discharge into sewer or waterways.
Section 13 - DISPOSAL CONSIDERATIONS
Recycle wherever possible. Consult manufacturer for recycling options.
Consult State Land Waste Management Authority for disposal.
Section 14 - TRANSPORTATION INFORMATION
Shipping Name:
CALCIUM HYPOCHLORITE, DRY with more than 39% available chlorine (8.8% available oxygen)
(8.8% available oxygen)
Hazard Class: 5.1
UN/NA Number: 1748
ADR Number: 50
Packing Group: II
Labels Required: oxidizing agent
Additional Shipping Information:
International Transport Regulations:
IMO: 5.1
Section 15 - REGULATORY INFORMATION
SAFETY
Keep away from combustible material.
Do not breathe dust.
Avoid contact with eyes.
Wear suitable protective clothing.
To clean the floor and all objects contaminated by this material, use water.
Take off immediately all contaminated clothing.
In case of accident or if you feel unwell IMMEDIATELY contact Doctor or Poisons
Information Centre (show label if possible).
If swallowed, IMMEDIATELY contact Doctor or Poisons Information Centre (show
this container or label).
Section 16 - OTHER INFORMATION
NEWZEALAND POISONS INFORMATION CENTRE
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CALCIUM HYPOCHLORITE, DRY
ChemWatch Material Safety Data Sheet (REVIEW) CHEMWATCH 1748-1
Issue Date: Fri 7-Jun-2002 CD 2004/2 Page 12 of 12
Section 16 - OTHER INFORMATION ...
0800 POISON (0800 764 766)
NZ EMERGENCYSERVICES: 111
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: Fri 7-Jun-2002
Print Date: Tue 21-Sep-2004
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