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File Name: quantumchemicals_com_au---sodium_sulfite_msds_24-10-2005.asp
                                           SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 1 of 9



Section 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION


PRODUCT NAME
SODIUM SULFITE

SYNONYMS

Na2-SO3, "anhydrous sodium sulphite", "anhydrous sodium sulfite", "disodium sulphite",
"disodium sulfite", "exiccated sodium sulphite", "exiccated sodium sulfite", Sulftech,
"sulphurous acid, sodium salt (1:2)", "sulfurous acid, sodium salt (1:2)", "sodium
sulphite hydrated", "sodium sulfite hydrated", "sodium sulphite heptahydrate", "disodium
sulphite heptahydrate", "disodium sulfite heptahydrate"

PRODUCT USE
Used chiefly in photographic developers and instead of `hypo' for fixing prints; bleaching
wool, straw, silk; generating sulphur dioxides; as reducer in the manufacture of dyes;
silvering glass. Also used for removing traces of chlorine in bleached textiles and paper;
preserving meat and egg yolks.

SUPPLIER
Company: Quantum Chemicals Pty Ltd
Address:
70 Quantum Close
Dandenong South
Victoria 3175
Telephone: 03 8795 8000
Emergency Tel: 1300 131 001
Fax: 03 8795 8099


HAZARD RATINGS


Flammability
Toxicity
Body Contact
Reactivity
Chronic

SCALE: Min/Nil=0 Low=1 Moderate=2 High=3 Extreme=4
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 2 of 9


Section 2 - HAZARDS IDENTIFICATION


STATEMENT OF HAZARDOUS NATURE
NON-HAZARDOUS SUBSTANCE. NON-DANGEROUS GOODS. According to the Criteria of
NOHSC, and the ADG Code.

POISONS SCHEDULE
None

RISK SAFETY
Ingestion may produce health damage*. Do not breathe dust.
Cumulative effects may result following Take off immediately all contaminated clothing.
exposure*.
Limited evidence of a carcinogenic effect*.
* (limited evidence).


Section 3 - COMPOSITION / INFORMATION ON INGREDIENTS

NAME CAS RN %
sodium sulfite 7757-83-7 > 95


Section 4 - FIRST AID MEASURES


SWALLOWED
For advice, contact a Poisons Information Centre or a doctor.
路 If swallowed do NOT induce vomiting.
路 If vomiting occurs, lean patient forward or place on left side (head-down position, if
possible) to maintain open airway and prevent aspiration.
路 Observe the patient carefully.
路 Never give liquid to a person showing signs of being sleepy or with reduced awareness;
i.e. becoming unconscious
路 Give water to rinse out mouth, then provide liquid slowly and as much as casualty can
comfortably drink.
路 Seek medical advice.

EYE
If this product comes in contact with the eyes:
路 Wash out immediately with fresh running water.
路 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.
路 If pain persists or recurs seek medical attention.
路 Removal of contact lenses after an eye injury should only be undertaken by skilled
personnel.

SKIN
If skin contact occurs:
路 Immediately remove all contaminated clothing, including footwear.
路 Flush skin and hair with running water (and soap if available).
路 Seek medical attention in event of irritation.

INHALED
路 If dust is inhaled, remove from contaminated area.
路 Encourage patient to blow nose to ensure clear passage of breathing.
路 If irritation or discomfort persists seek medical attention.
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 3 of 9
Section 4 - FIRST AID MEASURES

NOTES TO PHYSICIAN
Treat symptomatically.


Section 5 - FIRE FIGHTING MEASURES


EXTINGUISHING MEDIA
路 There is no restriction on the type of extinguisher which may be used.

FIRE FIGHTING
路 Alert Fire Brigade and tell them location and nature of hazard.
路 Wear breathing apparatus plus protective gloves for fire only.
路 Prevent, by any means available, spillage from entering drains or water courses.
路 Use fire fighting procedures suitable for surrounding area.
路 DO NOT approach containers suspected to be hot.
路 Cool fire exposed containers with water spray from a protected location.
路 If safe to do so, remove containers from path of fire.
路 Equipment should be thoroughly decontaminated after use.

FIRE/EXPLOSION HAZARD
路 Non combustible.
路 Not considered to be a significant fire risk, however containers may burn.
路 In a fire may decompose on heating and produce toxic / corrosive fumes.
Reacts vigorously with oxidising agents.
Decomposes on heating and produces toxic fumes of: sulfur oxides (SOx) and caustic
compounds.

FIRE INCOMPATIBILITY
Avoid contamination with oxidising agents i.e. nitrates, oxidising acids, chlorine
bleaches, pool chlorine etc. as ignition may result.

HAZCHEM: None


Section 6 - ACCIDENTAL RELEASE MEASURES


EMERGENCY PROCEDURES

MINOR SPILLS
路 Clean up all spills immediately.
路 Avoid contact with skin and eyes.
路 Wear impervious gloves and safety glasses.
路 Use dry clean up procedures and avoid generating dust.
路 Sweep up or
路 Vacuum up (consider explosion-proof machines designed to be grounded during storage and
use).
路 Place spilled material in clean, dry, sealable, labelled container.

MAJOR SPILLS
路 Clear area of personnel and move upwind.
路 Alert Fire Brigade and tell them location and nature of hazard.
路 Control personal contact by using protective equipment and dust respirator.
路 Prevent spillage from entering drains, sewers or water courses.
路 Recover product wherever possible. Avoid generating dust.
路 Sweep / shovel up.
路 If required, wet with water to prevent dusting.
路 Put residues in labelled plastic bags or other containers for disposal.
路 Wash area down with large quantity of water and prevent runoff into drains.
路 If contamination of drains or waterways occurs, advise emergency services.
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 4 of 9
Section 6 - ACCIDENTAL RELEASE MEASURES


EMERGENCY RESPONSE PLANNING GUIDELINES (ERPG)
The maximum airborne concentration below which it is believed that nearly all individuals could be exposed
for up to one hour WITHOUT experiencing or developing

life-threatening health effects is:
sodium sulfite 100 mg/m鲁

irreversible or other serious effects or symptoms which could impair an individual's ability to take
protective action is:
sodium sulfite 50 mg/m鲁

other than mild, transient adverse effects without perceiving a clearly defined odour is:
sodium sulfite 30 mg/m鲁

The threshold concentration below which most people will experience no appreciable risk of health effects:
sodium sulfite 10 mg/m鲁

American Industrial Hygiene Association (AIHA)

Ingredients considered according to the following cutoffs
Very Toxic (T+) >= 0.1% Toxic (T) >= 3.0%
R50 >= 0.25% Corrosive (C) >= 5.0%
R51 >= 2.5%
else >= 10%
where percentage is percentage of ingredient found in the mixture

Personal Protective Equipment advice is contained in Section 8 of the MSDS.


Section 7 - HANDLING AND STORAGE


PROCEDURE FOR HANDLING
路 Limit all unnecessary personal contact.
路 Wear protective clothing when risk of exposure occurs.
路 Use in a well-ventilated area.
路 Avoid contact with incompatible materials.
路 When handling, DO NOT eat, drink or smoke.
路 Keep containers securely sealed when not in use.
路 Avoid physical damage to containers.
路 Always wash hands with soap and water after handling.
路 Work clothes should be laundered separately.
路 Use good occupational work practice.
路 Observe manufacturer's storing and handling recommendations.
路 Atmosphere should be regularly checked against established exposure standards to ensure
safe working conditions are maintained.

SUITABLE CONTAINER
Glass container.
Plastic drum.
Polyethylene or polypropylene container.
路 Metal can or drum
路 Packaging as recommended by manufacturer.
路 Check all containers are clearly labelled and free from leaks.

STORAGE INCOMPATIBILITY
Avoid reaction with oxidising agents.
Avoid strong acids.
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 5 of 9
Section 7 - HANDLING AND STORAGE

STORAGE REQUIREMENTS
路 Store in original containers.
路 Keep containers securely sealed.
路 Store in a cool, dry, well-ventilated area.
路 Store away from incompatible materials and foodstuff containers.
路 Protect containers against physical damage and check regularly for leaks.
路 Observe manufacturer's storing and handling recommendations.
_____________________________________________________

SAFE STORAGE WITH OTHER CLASSIFIED CHEMICALS


+ + + + + +
_____________________________________________________
+: May be stored together
O: May be stored together with specific preventions
X: Must not be stored together



Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION


EXPOSURE CONTROLS
Source Material TWA mg/m鲁
_________ _________ _____
Australia Exposure Standards sodium sulfite (Inspirable dust 10
(Not specified))



PERSONAL PROTECTION




EYE
路 Safety glasses.
路 Safety glasses with side shields.
路 Chemical goggles.
路 Contact lenses may pose a special hazard; soft contact lenses may absorb and
concentrate irritants. A written policy document, describing the wearing of lens or
restrictions on use, should be created for each workplace or task. This should include a
review of lens absorption and adsorption for the class of chemicals in use and an account
of injury experience. Medical and first-aid personnel should be trained in their removal
and suitable equipment should be readily available. In the event of chemical exposure,
begin eye irrigation immediately and remove contact lens as soon as practicable. Lens
should be removed at the first signs of eye redness or irritation - lens should be
removed in a clean environment only after workers have washed hands thoroughly. [CDC
NIOSH Current Intelligence Bulletin 59].

HANDS/FEET
Wear chemical protective gloves, eg. PVC.
Wear safety footwear.
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 6 of 9
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION

OTHER
路 Overalls.
路 Barrier cream
路 Eyewash unit.

RESPIRATOR
Protection Factor Half- Face Respirator Full- Face Respirator Powered Air Respirator
10 x ES P1 Air- line* -- PAPR- P1 -
50 x ES Air- line** P2 PAPR- P2
100 x ES - P3 -
Air- line* -
100+ x ES - Air- line** PAPR- P3

* - Negative pressure demand ** - Continuous flow.

The local concentration of material, quantity and conditions of use determine the type of
personal protective equipment required.
For further information consult site specific
CHEMWATCH data (if available), or your
Occupational Health and Safety Advisor.

ENGINEERING CONTROLS
General exhaust is adequate under normal operating conditions. Local exhaust ventilation
may be required in specific circumstances. If risk of overexposure exists, wear approved
respirator. Correct fit is essential to obtain adequate protection. Provide adequate
ventilation in warehouse or closed storage areas. Air contaminants generated in the
workplace possess varying "escape" velocities which, in turn, determine the "capture
velocities" of fresh circulating air required to effectively remove the contaminant.


Type of Contaminant: Air Speed:
solvent, vapours, degreasing etc., evaporating 0.25- 0.5 m/s (50- 100 f/min)
from tank (in still air).
aerosols, fumes from pouring operations, 0.5- 1 m/s (100- 200 f/min.)
intermittent container filling, low speed
conveyer transfers, welding, spray drift,
plating acid fumes, pickling (released at low
velocity into zone of active generation)
direct spray, spray painting in shallow booths, 1- 2.5 m/s (200- 500 f/min.)
drum filling, conveyer loading, crusher dusts,
gas discharge (active generation into zone of
rapid air motion)
grinding, abrasive blasting, tumbling, high 2.5- 10 m/s (500- 2000 f/min.)
speed wheel generated dusts (released at high
initial velocity into zone of 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 favourable to 1: Disturbing room air currents
capture
2: Contaminants of low toxicity or of nuisance 2: Contaminants of high toxicity
value only.
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
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 7 of 9
Section 8 - EXPOSURE CONTROLS / PERSONAL PROTECTION

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 1-2
m/s (200-400 f/min) for extraction of solvents generated in a tank 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


APPEARANCE
Odourless, small white crystals or powder with saline sulphurous taste. Soluble in water
and glycerol; almost insoluble in alcohol. A reducing agent. Exists in anhydrous form and
as heptahydrate.

PHYSICAL PROPERTIES
Solid.
Mixes with water.

Molecular Weight: 126.1 anhydrous Boiling Range (掳C): Decomposes.
Melting Range (掳C): Decomposes. Specific Gravity (water=1): 2.63 (anhydrous)
Solubility in water (g/L): Soluble. pH (as supplied): Not applicable
pH (1% solution): 9.6- 9.8 Vapour Pressure (kPa): Not available.
Volatile Component (%vol): Not available. Evaporation Rate: Not applicable
Relative Vapour Density (air=1): Not available. Flash Point (掳C): Not applicable
Lower Explosive Limit (%): Not applicable Upper Explosive Limit (%): Not applicable
Autoignition Temp (掳C): Not applicable Decomposition Temp (掳C): 150
State: Divided solid Viscosity: Not available


Section 10 - CHEMICAL STABILITY AND REACTIVITY INFORMATION


CONDITIONS CONTRIBUTING TO INSTABILITY
路 Presence of incompatible materials.
路 Product is considered stable.
路 Hazardous polymerisation will not occur.


Section 11 - TOXICOLOGICAL INFORMATION


POTENTIAL HEALTH EFFECTS

ACUTE HEALTH EFFECTS

SWALLOWED
The solid/dust is. moderately discomforting to the gastro-intestinal tract and may be
harmful if swallowed.
Considered an unlikely route of entry in commercial/industrial environments.
Ingestion of sulfite salts may cause gastric irritation. Large doses may produce violent
colic, diarrhoea, circulatory disturbance, depression of vital functions and, sometimes,
death.

EYE
The material is moderately discomforting to the eyes and is capable of causing a mild,
temporary redness of the conjunctiva (similar to wind-burn), temporary impairment of
vision and/ or other transient eye damage/ ulceration.
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 8 of 9
Section 11 - TOXICOLOGICAL INFORMATION


SKIN
The material is moderately discomforting to the skin.
Prolonged exposure may cause skin reactions.

INHALED
The dust may be discomforting to the upper respiratory tract.
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
Principal routes of exposure are by accidental skin and eye contact and inhalation of
generated dusts.
Sulfites and bisulfites can cause narrowing of the airways, stomach upset, flushing, low
blood pressure, tingling sensation, itchy wheal, swelling and shock, and asthmatics are
especially prone. They induce allergic-like reactions which can occur on first contact
with the material.

TOXICITY AND IRRITATION
unless otherwise specified data extracted from RTECS - Register of Toxic Effects of Chemical Substances.
TOXICITY IRRITATION
Oral (mouse) LD50: 820 mg/kg Nil Reported
The substance is classified by IARC as Group 3:
NOT classifiable as to its carcinogenicity to humans.
Evidence of carcinogenicity may be inadequate or limited in animal testing.

MATERIAL CARCINOGEN REPROTOXIN SENSITISER SKIN
_______________ ____________ __________ __________ __________
sodium sulfite IARC:3

CARCINOGEN
IARC: International Agency for Research on Cancer (IARC) Carcinogens: sodium sulfite
Category: 3


Section 12 - ECOLOGICAL INFORMATION

No data


Section 13 - DISPOSAL CONSIDERATIONS

路 Recycle wherever possible or consult manufacturer for recycling options.
路 Consult State Land Waste Management Authority for disposal.
路 Bury residue in an authorised landfill.
路 Recycle containers if possible, or dispose of in an authorised landfill.


Section 14 - TRANSPORTATION INFORMATION

HAZCHEM: None


NOT REGULATED FOR TRANSPORT OF DANGEROUS GOODS:UN, IATA,
IMDG
SODIUM SULFITE
Chemwatch Material Safety Data Sheet
Issue Date: 24-Oct-2005 CHEMWATCH 21891
NC317TCP Version No:3
CD 2007/3 Page 9 of 9


Section 15 - REGULATORY INFORMATION


POISONS SCHEDULE: None

REGULATIONS
sodium sulfite (CAS: 7757-83-7) is found on the following regulatory lists;
Australia Exposure Standards
Australia High Volume Industrial Chemical List (HVICL)
Australia Inventory of Chemical Substances (AICS)
IMO MARPOL 73/78 (Annex II) - List of Noxious Liquid Substances Carried in Bulk
International Agency for Research on Cancer (IARC) Carcinogens
International Council of Chemical Associations (ICCA) - High Production Volume List
OECD Representative List of High Production Volume (HPV) Chemicals


sodium sulfite (CAS: 10102-15-5) is found on the following regulatory lists;
Australia Exposure Standards
Australia Inventory of Chemical Substances (AICS)
International Agency for Research on Cancer (IARC) Carcinogens



Section 16 - OTHER INFORMATION


INGREDIENTS WITH MULTIPLE CAS NUMBERS
Ingredient Name CAS
sodium sulfite 7757- 83- 7, 10102- 15- 5

Classification of the preparation 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.

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: 24-Oct-2005
Print Date: 10-Jan-2008

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