Potassium cyanate

Formula
CKNO
Structure
Description
Fine, white crystalline powder.
Uses
Manufacture of organic chemicals & drugs, herbicide.

Registry Numbers and Inventories.
CAS
590-28-3
EC (EINECS/ELINCS)
209-676-3
EC Index Number
615-016-00-9
EC Class
Harmful
RTECS
GS6825000
RTECS class
Agricultural Chemical and Pesticide; Drug
Merck
12,7788
Beilstein/Gmelin
21361 (G)
EPA OPP
68002
Swiss Giftliste 1
G-1742
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
CKNO
Formula mass
81.11
Melting point, °C
315-316
Density
2.056 g/cm3
Solubility in water
750 g/L (25 C)

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Do not ingest or inhale. Wash clothing before reuse.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability
Unstable in the presence of moisture.
Incompatibilities
Strong oxidizing agents, acids.
Decomposition
Hydrogen cyanide, carbon monoxide, carbon dioxide, dipotassium oxide.

Fire.
Flash Point,°C
700
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Health
1
 
Flammability
1
 
 
Reactivity
0
 

Health.
Poison_Class
4
Exposure effects
Harmful if swallowed. May cause irritation of the respiratory tract, eyes and skin.
   Ingestion
May be harmful if swallowed. Causes gastrointestinal tract irritation.
   Inhalation
Causes respiratory tract irritation. Causes irritation of mucous membrane.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.