Ammonium paratungstate hydrate

偏钨酸铵

Also known as: Ammonium paratungstate, Ammonium tungstate (common misnomer), Ammonium tungsten oxide hydrate, Ammonium tungsten oxide, Ammonium (para)tungstate hydrate

Ammonium paratungstate hydrate (CAS 11140-77-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H26N6O40W12 and a molecular weight of 2956.30000 g/mol. It is also known as Ammonium paratungstate, Ammonium tungstate (common misnomer) and Ammonium tungsten oxide hydrate. Key properties include a melting point of > 300 °C and a density of 2.3 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
11140-77-5
Jingsj CID
J-39184-5
Molecular Formula
H26N6O40W12
Chinese Name
偏钨酸铵
Molecular Weight
2956.30000 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Melting Point> 300 °C
Density2.3 g/cm3

Frequently Asked Questions

What is the CAS number of Ammonium paratungstate hydrate?

The CAS number of Ammonium paratungstate hydrate is 11140-77-5.

What are the molecular formula and molecular weight of Ammonium paratungstate hydrate?

Ammonium paratungstate hydrate has molecular formula H26N6O40W12 and molecular weight 2956.30000 g/mol.

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

Last updated:

How to cite: Jingsj. "Ammonium paratungstate hydrate (CAS 11140-77-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39184-5 (accessed 2026-10-23).

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