Hydrogen cyanide

CHNCAS 74-90-827.03 g/mol

Open in Covalent MOL file

Nitrile

Properties

Molecular formula: CHN
Molar mass: 27.03 g/mol
Exact mass: 27.0109 Da
Density: 0.69 g/mL
Melting point: −13.4 °C
Boiling point: 25.6 °C
pKa: 9.2
Flash point: -18 °C (closed cup)
Water solubility: miscible
logP: 0.14Crippen estimate
Polar surface area: 23.8 Å²
H-bond donors / acceptors: 0 / 1
Rotatable bonds: 0

Hazards

Danger

H224 Extremely flammable liquid and vaporFlammable liquids
H330 Fatal if inhaledAcute toxicity, inhalation
H400 Very toxic to aquatic lifeHazardous to the aquatic environment, acute hazard
H410 Very toxic to aquatic life with long lasting effectsHazardous to the aquatic environment, long-term hazard

Harmonised EU classification (CLP Annex VI, index 006-006-00-X), via PubChem.

Precautionary statements

P210, P233, P240, P241, P242, P243, P260, P271, P273, P280, P284, P303+P361+P353, P304+P340, P316, P320, P370+P378, P391, P403+P233, P403+P235, P405, P501

Identifiers

CAS number

74-90-8

SMILES

C#N

InChIKey

LELOWRISYMNNSU-UHFFFAOYSA-N

InChI

InChI=1S/CHN/c1-2/h1H

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

10 names

Hydrocyanic acid
Formic anammonide
Formonitrile
Prussic acid
Carbon hydride nitride (CHN)
Evercyn
Zyklon B
Agent AC
AC
AC (chemical warfare agent)

Reactions

Hydrogen cyanide (anhydrous) (Hydrocyanic acid)product

Work with Hydrogen cyanide

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia