Tris(hydroxymethyl)phosphine oxide

三羟甲基氧化膦

Also known as: Phosphoryltrimethanol, Trimethylolphosphine oxide, bis(hydroxymethyl)phosphorylmethanol, phosphoryl-tris-methanol, tris-hydroxymethyl-phosphane oxide, Phosphinylidynetrimethanol

Tris(hydroxymethyl)phosphine oxide (CAS 1067-12-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H9O4P and a molecular weight of 140.075 g/mol. It is also known as Phosphoryltrimethanol, Trimethylolphosphine oxide and bis(hydroxymethyl)phosphorylmethanol. Key properties include a boiling point of 504.9±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 259.2±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1067-12-5
Jingsj CID
J-1117020-2
Molecular Formula
C3H9O4P
Chinese Name
三羟甲基氧化膦
Molecular Weight
140.075 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point504.9±45.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point259.2±28.7 °C

Frequently Asked Questions

What is the CAS number of Tris(hydroxymethyl)phosphine oxide?

The CAS number of Tris(hydroxymethyl)phosphine oxide is 1067-12-5.

What are the molecular formula and molecular weight of Tris(hydroxymethyl)phosphine oxide?

Tris(hydroxymethyl)phosphine oxide has molecular formula C3H9O4P and molecular weight 140.075 g/mol.

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

Last updated:

How to cite: Jingsj. "Tris(hydroxymethyl)phosphine oxide (CAS 1067-12-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117020-2 (accessed 2026-10-24).

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