nav Searchuser
Chemical Identification
Common Name
Hydrogen cyanide
中文通用名
氰化氢
IUPAC
hydrogen cyanide
CAS
hydrocyanic acid
CAS No.
74-90-8
Molecular Formula
CHN
Molecular Structure
Physical Properties
Molecular weight:27.0g/mol; Physical form:Colourless, flammable liquid, with an odour of almonds. Density:0.699 (20℃); Melting point:-15℃; Vapour pressure:961 kPa (25℃); Henry constant:2.59 Pa m3mol-1 (calc.); pKa:Weak acid; Solubility:Completely miscible with water. Soluble in ethanol and diethyl ether.; Stability:Stable, in the pure form. In the liquid form and in aqueous solution, stabilised by the addition of small quantities of mineral acids.
Toxicology
Oral Acute oral LD50 for rats 10-15 mg/kg.Skin and eye Rapidly absorbed by skin. Eye irritant.Inhalation Exposure for 30 min at 0.36 mg/l air is fatal to man.ADI (JMPR) 0.05 mg/kg b.w. [1965].
Environmental Profile
Ecotoxicology:
Bees:Toxic to bees, but not hazardous if used as directed.Birds:Toxic to birds.Fish:Toxic to fish.
Environmental fate:
Animals:The cyanide ion is metabolised mainly to thiocyanate.
Transport Information
Hazard Class:O (Obsolete as pesticide, not classified)

Porduct NewsMore

Africa Watch: South Africa, Egypt rank top two for importing Clethodim

Clethodim

New Premix formulation “TODOMEBAS MF” liquid containing Farmhannong’s Metamifop launched in Japan

Metamifop

Yutian Analysis: Prothioconazole | The new market favorite?

Prothioconazole

Philippine disease control market: an old product but new thoughts

Zineb

FarmHannong launches new herbicide Flucetosulfuron in Myanmar

Flucetosulfuron

Africa Watch: Mesotrione becomes South Africa's top 1 imported pesticide product from China in 2019

Mesotrione

Yutian Analysis| India's heart Mancozeb and Acephate

Mancozeb Acephate

Flumioxazin – malignant weed destroyer with huge room for development

Flumioxazin

STK REGEV® ‘Hybrid’ Fungicide Registered in Chile

Difenoconazole Extract of Melaleuca Alternifolia

Yutian Analysis: Difenoconazole | 3,000-ton project is set to be built, but why is it so popular?

Difenoconazole

Related CompaniesMore