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Paraformaldehyde Properties

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Paraformaldehyde

Molecule Structure Image

Description
Paraformaldehyde is the smallest polyoxymethylene. It is used as fumigant, disinfectant, fungicide, and fixation, and for the preparation of pure formaldehyde. Longer chain-length polyoxymethylenes are used as thermoplastic and are known as polyoxymethylene plastic. It was used in the past in the discredited Sargenti method of root canal treatment.

Chemical Properties

Appearance	White Crystalline Solid
CAS Number	30525-89-4
Chemical Composition	Formaldehyde
Class	4.1
Density	0.88 g/cm³
EINECS Number	200-001-8
HS Code	38084090
IUPAC Name	Polyoxymethylene
InChI	1S/CH2O/c1-2/h1H2
InChIKey	XBRWELTXMQSEIN-UHFFFAOYAC
Melting Point	120 °C
Molar Mass	30.026 g/mol
Molecular Formula	OH(CH₂O)_nH
PG	3
RTECS Number	RV0540000
Refractive	1.235 n/D
Solubility	Sparingly Soluble
Synonyms	Formaldehyde Resin;Paraform;Paraformaldehyde;p-Formaldehyde;Polyoxymethylene;Formagene;PFA;Polyacetal

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