Polyoxymethylene

聚甲醛

Also known as: Polyformaldehyde, Polyacetal, Acetal resin, Polyoxymethylene homopolymer, Poly(oxymethylene), Polyacetal resin, Polyformaldehyde copolymer, POLY(OXYMETHYLENE), ACETATE END-CAPPED, POLY(TRIOXANE), Polyoxymethylenes

Polyoxymethylene (CAS 66455-31-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H6O3X2 and a molecular weight of 90.08 g/mol. It is also known as Polyformaldehyde, Polyacetal and Acetal resin. Key properties include a melting point of 175 °C, a density of 1.42 g/mL at 25 °C and a flash point of 158 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66455-31-0
Jingsj CID
J-1967183-5
Molecular Formula
C3H6O3X2
Chinese Name
聚甲醛
Molecular Weight
90.08 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point175 °C
Density1.42 g/mL at 25 °C
Flash Point158 °F

Frequently Asked Questions

What is the CAS number of Polyoxymethylene?

The CAS number of Polyoxymethylene is 66455-31-0.

What are the molecular formula and molecular weight of Polyoxymethylene?

Polyoxymethylene has molecular formula C3H6O3X2 and molecular weight 90.08 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Polyoxymethylene (CAS 66455-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1967183-5 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.