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Tellurous acid

Also known as: dihydrogen trioxotellurate, dihydroxidooxidotellurium, tellurium dioxide hydrate, H2TeO3, tellurige Saeure, [TeO(OH)2], EINECS 233-173-8, UNII-IVA6SGP6QM

Tellurous acid (CAS 10049-23-7) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H2O3Te and a molecular weight of 177.61400 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10049-23-7
Jingsj CID
J-18318-1
Molecular Formula
H2O3Te
Molecular Weight
177.61400 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Physicochemical Properties

Exact Mass179.90700
PSA57.53000

Frequently Asked Questions

What is the CAS number of Tellurous acid?

The CAS number of Tellurous acid is 10049-23-7.

What are the molecular formula and molecular weight of Tellurous acid?

Tellurous acid has molecular formula H2O3Te and molecular weight 177.61400 g/mol.

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

Last updated:

How to cite: Jingsj. "Tellurous acid (CAS 10049-23-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18318-1 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.