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SODIUM THIOCYANATE ICSC: 0675
Date of Peer Review: October 2004

Thiocyanic acid, sodium salt
Sodium sulfocyanate
Sodium rhodanide
CAS # 540-72-7 NaSCN
RTECS # XL2275000 Molecular mass: 81.1
UN #
EC Index # 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 and then wash skin with water and soap.
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 Nausea. Vomiting. Diarrhoea. Weakness. Confusion. Convulsions.
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. Carefully collect remainder. Personal protection: P2 filter respirator for harmful particles.
EU Classification
Symbol: Xn
R: 20/21/22-32-52/53
S: (2-)-13-61
Note: [A]
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H3; F0; R1;
Separated from acids, bases, oxidants, food and feedstuffs. 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 2005

SEE IMPORTANT INFORMATION ON BACK
SODIUM THIOCYANATE ICSC: 0675
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS HYGROSCOPIC CRYSTALS OR WHITE POWDER

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including sulfur oxides, nitrogen oxides, sodium oxide and cyanides. Reacts violently with acids, strong bases and strong oxidants.

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

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 central nervous system and thyroid, resulting in impaired functions and hypothyroidism.
PHYSICAL PROPERTIES
Boiling point (decomposes): 368C
Melting point: about 300C
Density: 1.7 g/cm
Solubility in water, g/100 ml at 21C: 139
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 2005