International Chemical Safety Cards

SODIUM SULFITE ICSC: 1200

SODIUM SULFITE
Sodium sulphite
Sulfurous acid, disodium salt
Disodium sulfite
(powder)
Na2O3S/Na2SO3
Molecular mass: 126.06
CAS # 7757-83-7
RTECS # WE2150000
ICSC # 1200
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION


 
EXPOSURE
PREVENT DISPERSION OF DUST! STRICT HYGIENE!

INHALATION Laboured breathing. Wheezing.
Local exhaust or breathing protection.
Fresh air, rest. Half-upright position. Refer for medical attention.
SKIN
Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
EYES
Face shield or eye protection in combination with breathing protection.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
INGESTION In sensitized individuals minute quantities may lead to serious effects (further see Inhalation).
Do not eat, drink, or smoke during work. Wash hands before eating.
Refer for medical attention.
SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water (extra personal protection: P2 filter respirator for harmful particles).
Separated from strong oxidants, acids. Dry.

SEE IMPORTANT INFORMATION ON BACK
ICSC: 1200 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993

International Chemical Safety Cards

SODIUM SULFITE ICSC: 1200

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PHYSICAL STATE; APPEARANCE:
WHITE CRYSTALS OR POWDER.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating and on burning producing toxic and corrosive sulfur oxides. The substance is a strong reducing agent and reacts with oxidants. Reacts with strong acids producing toxic sulfur dioxide.

OCCUPATIONAL EXPOSURE LIMITS (OELs):
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation and by ingestion.

INHALATION RISK:


EFFECTS OF SHORT-TERM EXPOSURE:
Inhalation of this substance may cause asthmatic reactions (see Notes).

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation exposure may cause asthma (see Notes).
PHYSICAL
PROPERTIES
 Decomposes below melting point: at 600°C
Relative density (water = 1): 2.63		 Solubility in water: good
ENVIRONMENTAL
DATA
 This substance may be hazardous to the environment; special attention should be given to water organisms.
N O T E S
Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. The symptoms of asthma often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and medical observation are therefore essential. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact with this substance.
NFPA Code: H1; F0; R0
ADDITIONAL INFORMATION


ICSC: 1200 SODIUM SULFITE
© IPCS, CEC, 1993
IMPORTANT LEGAL NOTICE: Neither the CEC or the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use.