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فرمالدهید

File:Structural_formula_of_formaldehyde.svg · Wikimedia Commons · See Wikimedia Commons

EntityQ161210· pop 73· linked from 2,038 articles

فرمالدهید

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Also known as Formic aldehyde, Formaline, Fannoform, Chlodithane, Formalith, Methaldehyde, Formalina, Chlodithan

Formaldehyde ( , ) (systematic name methanal) is a pungent colorless gas mainly used in the production of industrial resins, such as for particle board, coatings, plastics, pulp, paper, synthetic fibers, and textiles. A ~5% solution in water of formaldehyde is used as a disinfectant and fumigant in industrial, agricultural, and healthcare settings, and a ~37% solution is used to preserve tissue samples in labs. In 2024, the global production of formaldehyde was estimated at 26 million tons per year, and is a precursor to many other materials and chemical compounds.

OverviewAI-generated

Formaldehyde is a chemical compound with the formula CH₂O. Its structure is represented by the canonical SMILES notation C=O. The substance has a molecular mass of 30.011 and a density of 0.8153. It possesses an electric dipole moment of 2.332 and an ionization energy of 10.88. The standard enthalpy of formation is recorded as -115.9.

The compound melts at -134 and -92, and boils at -6 and -19.1. Its vapor pressure is 1. Formaldehyde is flammable, with a lower flammable limit of 7 and an upper flammable limit of 73. Exposure limits include a time-weighted average of 0.92, a ceiling limit of 0.123, and a short-term limit of 2.46. The level immediately dangerous to life or health is 24.6. It has zero hydrogen bond donors and one acceptor.

Synthesized by Vinony from 32 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula
CH2O
Molecular weight
30.026 g/mol
IUPAC name
formaldehyde
SMILES
C=O
InChIKey
WSFSSNUMVMOOMR-UHFFFAOYSA-N
XLogP
1.2
Polar surface area
17.1 Ų
H-bond donors
0
H-bond acceptors
1
Formal charge
0

via PubChem

Research

41,871 papers

via PubMed

Wikidata facts

Has part
carbon
Mass
30.011
Show 19 more facts
Commons category
Formaldehyde
chemical formula
CH₂O
time-weighted average exposure limit
0.02
canonical SMILES
C=O
NIOSH Pocket Guide ID
0293
ceiling exposure limit
0.123
immediately dangerous to life or health
24.6
melting point
-92
boiling point
-19.1
vapor pressure
1
lower flammable limit
7
upper flammable limit
73
ionization energy
10.87
short-term exposure limit
2.46
found in taxon
Escherichia coli
standard enthalpy of formation
-115.9
density
0.8153
on focus list of Wikimedia project
Wikipedia:Vital articles/Level/4
electric dipole moment
2.332
Sources (8)

via Wikidata · CC0

Gallery (25)

Available in 73 languages

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via Wikidata sitelinks · CC0