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SODIUM CHLORATE ICSC: 1117
Date of Peer Review: October 1999

Chloric acid, sodium salt
CAS # 7775-09-9 NaClO3
RTECS # FO0525000 Molecular mass: 106.44
UN # 1495
EC # 017-005-00-9
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.
NO contact with flammable substances. NO contact with combustible and reducing materials, and organic materials.
Water in large amounts.
EXPLOSION Risk of fire and explosion.

In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation Cough. Sore throat. Blue lips or finger nails. Blue skin. Confusion. Convulsions. Dizziness. Headache. Nausea. Unconsciousness.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness.
Protective gloves.
First rinse with plenty of water, then remove contaminated clothes and rinse again. Refer for medical attention.
Eyes Redness. Pain.
Safety goggles, 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 Abdominal pain. Diarrhoea. Shortness of breath. Vomiting. (Further see Inhalation).
Do not eat, drink, or smoke during work.
Rinse mouth. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. (Extra personal protection: P2 filter respirator for harmful particles).
EU Classification
Symbol: O, Xn
R: 9-22
S: (2-)-13-17-46
UN Classification
UN Hazard Class: 5.1
UN Pack Group: II
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-47/51G02
NFPA Code: H 1; F 0; R 2; OX
Separated from combustible and reducing substances, and incompatible materials. See Chemical Dangers.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

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SODIUM CHLORATE ICSC: 1117
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
ODOURLESS, COLOURLESS CRYSTALS OR WHITE GRANULES.

CHEMICAL DANGERS:
The substance decomposes on heating above 300C producing oxygen, which increases fire hazard, and toxic fumes (chlorine). The substance is a strong oxidant and reacts violently with combustible and reducing materials, causing fire and explosion hazard. Reacts with many organic materials to form shock-sensitive mixtures, causing explosion hazard. Attacks zinc and steel.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance irritates the eyes, the skin and the respiratory tract. The substance may cause effects on the blood, resulting in formation of methaemoglobin, and on kidneys, resulting in kidney impairment. The effects may be delayed. Medical observation is indicated. See Notes.

PHYSICAL PROPERTIES
Decomposes below boiling point at ca. 300C
Melting point: 248C
Density: 2.5 g/ml
Solubility in water, g/100 ml at 20C: 100
ENVIRONMENTAL DATA

NOTES
The substance is entirely decomposed at temperature higher than 300C. Will turn shock-sensitive if contaminated with organic materials. Marketed formulations contain a flame retardant. Depending on the degree of exposure, periodic medical examination is indicated. Rinse contaminated clothes (fire hazard) with plenty of water. Dervan, Defol, Chlorax and Atlacide are trade names.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor 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
IPCS, CEC 1999
See Also:
        Sodium chlorate (CHEMINFO)