ICSC 1200 - SODIUM SULFITE

SODIUM SULFITE	ICSC: 1200 (April 2009)
Sodium sulphite Sulfurous acid, disodium salt Disodium sulfite

CAS #: 7757-83-7

EC Number: 231-821-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.		In case of fire in the surroundings, use appropriate extinguishing media.

PREVENT DISPERSION OF DUST! AVOID ALL CONTACT!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. See Effects of long-term or repeated exposure.	Use local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Seek medical attention if you feel unwell.
Skin		Protective clothing. Protective gloves.	Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes		Wear safety spectacles.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion		Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Give one or two glasses of water to drink. Rest.

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for inorganic gases and vapours adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria DANGER Harmful if swallowed May cause allergy or asthma symptoms or breathing difficulties if inhaled May cause an allergic skin reaction Harmful to aquatic life Transportation UN Classification
STORAGE
Separated from strong oxidants and acids. Store in an area without drain or sewer access.
PACKAGING

SODIUM SULFITE

ICSC: 1200

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE CRYSTALS OR POWDER. Physical dangers No data. Chemical dangers Decomposes on heating. This produces toxic and corrosive fumes. The substance is a strong reducing agent. It reacts violently with oxidants. Reacts with strong acids. This produces toxic sulfur oxides.	Formula: Na₂SO₃ Molecular mass: 126.04 Melting point: >500°C Decomposes at 600°C Density: 2.63 g/cm³ Solubility in water, g/100ml at 20°C: 22 (good) Octanol/water partition coefficient as log Pow: -4

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE CRYSTALS OR POWDER.

Physical dangers
No data.

Chemical dangers
Decomposes on heating. This produces toxic and corrosive fumes. The substance is a strong reducing agent. It reacts violently with oxidants. Reacts with strong acids. This produces toxic sulfur oxides.

Formula: Na₂SO₃
Molecular mass: 126.04
Melting point: >500°C
Decomposes at 600°C
Density: 2.63 g/cm³
Solubility in water, g/100ml at 20°C: 22 (good)
Octanol/water partition coefficient as log Pow: -4

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The aerosol is irritating to the respiratory tract.	Inhalation risk A nuisance-causing concentration of airborne particles can be reached quickly when dispersed. Effects of long-term or repeated exposure Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. See Notes.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation and by ingestion.

Effects of short-term exposure
The aerosol is irritating to the respiratory tract.

Inhalation risk
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.

Effects of long-term or repeated exposure
Repeated or prolonged contact may cause skin sensitization. Repeated or prolonged inhalation may cause asthma. See Notes.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES
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. Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered. Anyone who has shown symptoms of asthma due to this substance should avoid all further contact.

NOTES

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.
Immediate administration of an appropriate inhalation therapy by a doctor, or by an authorized person, should be considered.
Anyone who has shown symptoms of asthma due to this substance should avoid all further contact.

ADDITIONAL INFORMATION

EC Classification

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    See Also:
       Toxicological Abbreviations
       Sodium sulfite (FAO Nutrition Meetings Report Series 40abc)
       SODIUM SULFITE (JECFA Evaluation)