IUPAC Name: Potassium thiocyanate
Synonyms of Potassium thiocyanate (CAS NO.333-20-0): Arterocyn ; Kyonate ; Potassium isothiocyanate ; Potassium thiocyanate ; Thiocyanic acid, potassium salt (1:1)
CAS NO: 333-20-0
Molecular Formula: KCNS
Molecular Weight: 97.18
Molecular Structure:
EINECS: 206-370-1
H bond acceptors: 1
H bond donors: 0 
Freely Rotating Bonds: 0
Polar Surface Area: 62.59 Å²
Flash Point: 42.1 °C 
Enthalpy of Vaporization: 38.3 kJ/mol
Boiling Point: 146 °C at 760 mmHg
Vapour Pressure: 4.73 mmHg at 25°C 
Melting Point: 173 °C(lit.)
Storage temp: Store at RT. 
Density: 1.886
Solubility : H₂O: 8 M at 20°C, clear, colorless
Sensitive : Hygroscopic
Appearance: Colorless to white, odorless crystals
SMILES: [K+].[S-]C#N
InChI: InChI=1/CHNS.K/c2-1-3;/h3H;/q;+1/p-1
InChIKey: ZNNZYHKDIALBAK-REWHXWOFAT
Std. InChI: InChI=1S/CHNS.K/c2-1-3;/h3H;/q;+1/p-1
Std. InChIKey: ZNNZYHKDIALBAK-UHFFFAOYSA-M
Product Categories of Potassium thiocyanate (CAS NO.333-20-0): Inorganics

 Potassium thiocyanate (CAS NO.333-20-0) is the starting product for the synthesis of carbonyl sulfide. Potassium thiocyanate is used for the production of artificial mustard oil, fungicide, insecticide. It is occasionally used for moderately realistic blood effects in film and theater. Besides, it can be painted onto a surface or kept as a colourless solution.

Reported in EPA TSCA Inventory.

Safety Information about Potassium thiocyanate (CAS NO.333-20-0):
Hazard Codes: Xn,Xi
Risk Statements: 32-52/53-20/21/22
R20/21/22: Harmful by inhalation, in contact with skin and if swallowed. 
R32: Contact with acid liberates very toxic gas. 
R52/53: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 13-61-36/37
S13: Keep away from food, drink and animal foodstuffs. 
S36/37: Wear suitable protective clothing and gloves. 
S61: Avoid release to the environment. Refer to special instructions / safety data sheets.
WGK Germany: 1
RTECS: XL1925000
Hazard Note: Irritant/Hygroscopic
HS Code: 28380000
A human poison by ingestion. Poison experimentally by intravenous route. An experimental teratogen. Moderately toxic by subcutaneous and ingestion routes. Large doses can cause skin eruptions, psychoses, and collapse. Incompatible with calcium chlorite and perchloryl fluoride. When heated to decomposition it emits very toxic fumes of CN⁻, K₂O, SO_x, and NO_x. See also THIOCYANATES.

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Substance is noncombustible.
Extinguishing Media: Use extinguishing media most appropriate for the surrounding fire. 
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage: Store in a cool, dry place. Do not store in direct sunlight. Store in a tightly closed container. Keep away from acids. Store protected from moisture.