Potassium thiocyanate

Basic Information

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CAS Number

333-20-0

Molecular Formula

CKNS

Molecular Weight

47.1 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Nitriles

Basic Physical Properties

Melting Point

173 °C

Boiling Point

500 ºC

Water Solubility

2170 g/L (20 ºC)

Flash Point

500°C

Solubility

H2O: 8 M at 20 °C, clear, colorless

SMILES

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[S-]C#N.[K+]

InChI

InChI=1S/CH4S/c1-2/h2H,1H3/p-1

InChIKey

LSDPWZHWYPCBBB-UHFFFAOYSA-M

LogP

0.1631

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

34.5

Safety Information

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GHS Hazard Pictograms

H332

Hazard Statement

H332 Harmful if inhaled
Acute toxicity, inhalation

Stability

Stable. Incompatible with nitric acid, strong oxidizing agents, active halogen compounds.

Sensitiveness

Hygroscopic

Toxicity

LD50 orally in mice, rats: 594, 854 mg/kg, Andersen, Chen, J. Am. Pharm. Assoc. 29, 152 (1940)

Synonyms & References

English

Potassium thiocyanate
POTASSIUM ISOTHIOCYANATE
POTASSIUM RHODANATE
POTASSIUM RHODANIDE
POTASSIUM SULFOCYANATE
POTASSIUM SULFOCYANIDE
POTASSIUM THIOCYANATE STANDARD
SULFOCYANATE
THIOCYANATE, POTASSIUM
THIOCYANATE STANDARD
Arterocyn
Aterocyn
Kyonate
Potassium thiocyanide
Rhocya
Rhodanide
Rodanca
Thio-cara
Thiocyanic acid, potassium salt
Potassium Thiocyanat
ACS
Potassium rhodanide,Potassium thiocyanate
potassium thioacyanate
Potassium thiocyanate concentrate
硫氰酸钾
Potassium Thiocyanate

MDL Number

MFCD00011413

Customs Code

2842901910

FAQ

What is Potassium thiocyanate (CAS: 333-20-0)?

Potassium thiocyanate (CAS: 333-20-0) is an inorganic compound with the chemical formula KSCN. It appears as a white crystalline solid, is highly soluble in water, and is hygroscopic. This compound is commonly used in analytical chemistry as a reagent and in coordination chemistry due to its ability to act as a ligand. Its properties include a sharp, pungent odor and a tendency to react with strong oxidizing agents.

What are the main uses of Potassium thiocyanate (CAS: 333-20-0)?

Potassium thiocyanate (CAS: 333-20-0) is widely used in pharmaceuticals for drug synthesis, in the dyeing industry as a mordant, and in gold extraction processes. It also serves as a flavor enhancer in food applications and a source of thiocyanate ions in research. Additionally, it is employed in analytical chemistry for detecting metal ions and in the production of other thiocyanate derivatives.

Is Potassium thiocyanate (CAS: 333-20-0) safe?

Potassium thiocyanate (CAS: 333-20-0) is toxic if inhaled, ingested, or absorbed through the skin, with an LD50 of approximately 150 mg/kg in rats. It is corrosive and requires handling with gloves, eye protection, and proper ventilation. Safety standards emphasize avoiding contact with acids and oxidizers. While not classified as a hazardous substance under all regulations, it should be managed with care to prevent exposure.

How should Potassium thiocyanate (CAS: 333-20-0) be stored?

Potassium thiocyanate (CAS: 333-20-0) should be stored in a cool, dry, and dark place, preferably in a sealed container to prevent moisture absorption. Maintain storage temperature below 20°C and avoid exposure to humidity or light. Keep it away from incompatible materials like acids and oxidizers. Ensure proper ventilation to minimize inhalation risks and store in a well-ventilated area.