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hydrogen cyanide

File:Hydrogen-cyanide-2D.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ26075· pop 73· linked from 1,297 articles

hydrogen cyanide

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Also known as hydrocyanic acid, Formonitrile, Prussic acid, [CHN], HCN, methanenitrile

chemical compound

AI overview

Hydrogen cyanide is a poisonous chemical compound made of hydrogen, carbon, and nitrogen atoms bonded together. It matters because it has industrial uses in manufacturing but is also dangerous to human health, making it an important substance to handle carefully and understand for safety reasons.

AI-generated from the Wikipedia summary — may contain errors.

In the Vinony graph

Vinony's link graph records 1,297 inbound references to hydrogen cyanide, and connects out to T-1123, water and acid.

Vinony files it under Blood agents, Chembox having GHS data and Cyanides.

Vinony links it to 71 Wikipedia language editions.

Chemical data

Formula
CHN
Molecular weight
27.025 g/mol
IUPAC name
formonitrile
SMILES
C#N
InChIKey
LELOWRISYMNNSU-UHFFFAOYSA-N
XLogP
0.1
Polar surface area
23.8 Ų
H-bond donors
0
H-bond acceptors
1
Formal charge
0

via PubChem

Wikidata facts

Mass
27.011
Image
Hydrogen cyanide.jpg
Show 19 more facts
Commons category
Hydrogen cyanide
pKa
9.21
canonical SMILES
[H+].[C-]#N
boiling point
26
NIOSH Pocket Guide ID
0333
density
0.000671
immediately dangerous to life or health
55
melting point
-13.4
refractive index
1.2675
vapor pressure
630
lower flammable limit
5.6
upper flammable limit
40
ionization energy
13.60
time-weighted average exposure limit
11
short-term exposure limit
5
chemical formula
CHN
electric dipole moment
2.984
dynamic viscosity
0.201
flash point
-17.8
Sources (9)

via Wikidata · CC0

~24 min read

Encyclopedic overview

Names

IUPAC name Formonitrile

Excerpted from Wikipedia’s “hydrogen cyanide” article, available under the CC BY-SA 4.0 licence.

Gallery (11)

Connections

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