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POTASSIUM THIOCYANATE ICSC: 1088
Date of Peer Review: April 2004

Thiocyanic acid, potassium salt
Potassium sulfocyanate
Potassium rhodanide
CAS # 333-20-0 KSCN
RTECS # XL1925000 Molecular mass: 97.18
UN #
EC # 615-004-00-3
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: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation Cough. Further see Ingestion.
Local exhaust or breathing protection.
Fresh air, rest.
Skin
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes
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 Confusion. Convulsions. Nausea. Vomiting. Weakness.
Do not eat, drink, or smoke during work.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into covered containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder. Personal protection: P2 filter respirator for harmful particles.
EU Classification
Symbol: Xn
R: 20/21/22-32
S: (2-)-13
Note: [A]
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H3; F0; R0;
Separated from strong oxidants. Dry. Well closed.
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

SEE IMPORTANT INFORMATION ON BACK
POTASSIUM THIOCYANATE ICSC: 1088
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS TO WHITE HYGROSCOPIC CRYSTALS

CHEMICAL DANGERS:
The substance decomposes on heating producing very toxic fumes: sulfur compounds, nitrogen oxides and cyanides. Reacts violently with strong oxidants. On contact with water - strong cooling effect.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.
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 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 tissue lesions.
PHYSICAL PROPERTIES
Boiling point (decomposes): 500C
Melting point: 173C
Density: 1.9 g/cm
Solubility in water: very good
ENVIRONMENTAL DATA

NOTES

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