Chloric acid, sodium salt
NaClO3
Molecular mass: 106.44
ICSC # 1117
CAS # 7775-09-9
RTECS # FO0525000
UN # 1495
EC # 017-005-00-9
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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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.
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NO contact with flammable substances.
NO contact with combustibles, reducing agents, and organic materials.
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Water in large amounts.
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Explosion
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Risk of fire and explosion.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Sore throat.
Blue lips or finger nails.
Blue skin.
Confusion.
Convulsions.
Dizziness.
Headache.
Nausea.
Unconsciousness.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
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First rinse with plenty of water, then remove contaminated clothes and rinse again.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Diarrhoea.
Shortness of breath.
Vomiting.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
Personal protection: P2 filter respirator for harmful particles.
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Separated from
combustible and reducing substances,
and incompatible materials
.
See Chemical Dangers.
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O symbol
Xn symbol
N symbol
R: 9-22-51/53
S: 2-13-17-46-61
UN Hazard Class: 5.1
UN Packing Group: II
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Important Data
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Physical State; Appearance:
ODOURLESS,
COLOURLESS
CRYSTALS
OR WHITE GRANULES.
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating above 300°C
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.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
by ingestion.
Inhalation Risk:
Evaporation at 20°C 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
is irritating to
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.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Decomposes below boiling point at ca. 300°C
Melting point: 248°C
Density: 2.5
g/cm3
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Solubility in water, g/100 ml at 20°C: 100
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Environmental
Data
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N O T E S
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The substance is entirely decomposed at temperature higher than 300°C.
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 suggested.
Rinse contaminated clothes (fire hazard) with plenty of water.
Dervan, Defol, Chlorax and Atlacide are trade names.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-51S1495
NFPA Code: H 1; F 0; R 2; OX
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ADDITIONAL INFORMATION
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ICSC: 1117
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SODIUM CHLORATE
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
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.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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