Thiocyanic acid, potassium salt
Potassium sulfocyanate
Potassium rhodanide
KSCN
Molecular mass: 97.18
ICSC # 1088
CAS # 333-20-0
RTECS # XL1925000
EC # 615-004-00-3
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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.
Gives off irritating or toxic fumes (or gases) in a fire.
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In case of fire in the surroundings: use appropriate extinguishing media.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Further
see Ingestion.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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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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Confusion.
Convulsions.
Nausea.
Vomiting.
Weakness.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give a slurry of activated charcoal in water to drink.
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 covered containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder.
Personal protection: P2 filter respirator for harmful particles.
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Separated from
strong oxidants.
Dry.
Well closed.
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Note: A
Xn symbol
R: 20/21/22-32-52/53
S: 2-13-61
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Important Data
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Physical State; Appearance:
COLOURLESS
TO WHITE
HYGROSCOPIC
CRYSTALS
Physical Dangers:
Chemical Dangers:
The substance decomposes
on heating
producing very toxic fumes: sulfur compounds,nitrogen oxidesandcyanides.
Reacts
violently with
strong oxidants
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On contact with
water
- strong cooling effect
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Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation
and
by ingestion.
Inhalation Risk:
A harmful concentration of airborne particles can be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance may cause effects on the
central nervous system
, resulting in excitement and convulsions.
Effects of Long-Term or Repeated Exposure:
The substance may have effects on the
thyroid
and
central nervous system
, resulting in impaired functions and hypothyroidism.
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Physical
Properties
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Boiling point (decomposes): 500°C
Melting point: 173°C
Density: 1.9
g/cm3
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Solubility in water:
very good
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Environmental
Data
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 1088
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POTASSIUM THIOCYANATE
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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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