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POTASSIUM THIOCYANATE

ICSC: 1088

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
April 21, 2004 Validated

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

STORAGE

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.
Separated from strong oxidants. Dry. Well closed.

Note: A
Xn symbol
R: 20/21/22-32-52/53
S: 2-13-61
ICSC: 1088 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

POTASSIUM THIOCYANATE

ICSC: 1088

I

M

P

O

R

T

A

N

T


D

A

T

A

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 . 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 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.

PHYSICAL
PROPERTIES

Boiling point (decomposes): 500°C
Melting point: 173°C
Density: 1.9
g/cm3
Solubility in water:
very good

ENVIRONMENTAL
DATA


N O T E S

NFPA Code: H3; F0; R0;

ADDITIONAL INFORMATION



ICSC: 1088 POTASSIUM THIOCYANATE
(C) IPCS, CEC, 1994
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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