氰酸钾

Description

Potassium cyanate · CAS 590-28-3 · CKNO. UNII G9C31TWN5M. Melting Point: 315 °C; Solubility: In water, 6.3X10+5 mg/L @ 10 °C; Density: 2.056.

Identification

CAS Registry Number	590-28-3
PubChem CID	11378442
Molecular formula	CKNO
IUPAC name	potassium cyanate
UNII (FDA)	G9C31TWN5M

Computed Descriptors

Molecular Weight	81.115
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	80.96169511
Monoisotopic Mass	80.96169511
Topological Polar Surface Area	46.9
Heavy Atom Count	4
Formal Charge	0
Complexity	34.5

Physical & Chemical Properties

Melting Point	315 °C
Solubility	In water, 6.3X10+5 mg/L @ 10 °C
Density	2.056
Other Experimental Properties	Decomposes at 700-900 °C
Formulations/Preparations	92% wettable powder

Physical description & handling notes

• Large Crystals
• Colorless or white solid; [HSDB] White crystalline solid; [MSDSonline]
• White, crystalline powder
• Colorless crystals
• Tetragonal crystals
• Very slightly sol in alcohol

Regulatory Status

Regulatory & Food Contact	CIR / INCI: Emollient; Hair conditioning; Skin conditioning

GHS Hazard Classification

Reported hazard statements	H302, H319 (77.2%), H412 (57.1%), H371

Documented Uses

• Used to make organic chemicals and drugs; as post-emergence contact herbicide; as cotton defoliant; to treat sickle cell disease; [HSDB]
• Manufacture of organic chemicals and drugs.
• Postemergence contact herbicide
• Potassium cyanate is used mainly to produce herbicides. (L193)
• Cosmetics -> Emollient; Hair conditioning; Skin conditioning
• Potassium cyanide is readily oxidized to potassium cyanate by heating in the presence of oxygen or easily reduced oxides, such as those of lead or tin or manganese dioxide, and in aqueous solution by reaction with hypochlorites or hydrogen peroxide.

Synonyms

POTASSIUM CYANATE; 590-28-3; Aero cyanate; Cyanic acid, potassium salt; Alicyanate; Kaliumcyanat; KOCN; Bulpur; Potassium isocyanate; Weedanol cyanol; Potassium cyanate (KCNO); Aero cyanate weedkiller; Miller P.C. weedkiller; Ded-weed crabgrass killer; Weedone Crab Grass Killer; Potassium cyanate (KOCN)

Frequently Asked Questions

What are the CAS number and molecular formula of Potassium cyanate?

CAS 590-28-3; molecular formula CKNO; molecular weight — g/mol.

What other names is Potassium cyanate known by?

POTASSIUM CYANATE, 590-28-3, Aero cyanate, Cyanic acid, potassium salt, Alicyanate, Kaliumcyanat.

What is the regulatory status of Potassium cyanate?

Documented regulatory listings: CIR / INCI: Emollient; Hair conditioning; Skin conditioning.

Is Potassium cyanate classified as hazardous?

Hazard statements reported: H302, H319, H412, H371.

What are the key physical properties of Potassium cyanate?

Melting Point: 315 °C; Solubility: In water, 6.3X10+5 mg/L @ 10 °C; Density: 2.056; Other Experimental Properties: Decomposes at 700-900 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.