Sodium tetraborate pentahydrate

五水硼砂

Also known as: Tincalconite, Borax pentahydrate, disodium tetraborate pentahydrate, Tincalconite (B4Na2O7.5H2O)

Sodium tetraborate pentahydrate (CAS 12045-88-4) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula B4H14Na2O17 and a molecular weight of 375.32500 g/mol. It is also known as Tincalconite, Borax pentahydrate and disodium tetraborate pentahydrate. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
12045-88-4
Jingsj CID
J-1508656-1
Molecular Formula
B4H14Na2O17
Chinese Name
五水硼砂
Molecular Weight
375.32500 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026

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Frequently Asked Questions

What is the CAS number of Sodium tetraborate pentahydrate?

The CAS number of Sodium tetraborate pentahydrate is 12045-88-4.

What are the molecular formula and molecular weight of Sodium tetraborate pentahydrate?

Sodium tetraborate pentahydrate has molecular formula B4H14Na2O17 and molecular weight 375.32500 g/mol.

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

Last updated:

How to cite: Jingsj. "Sodium tetraborate pentahydrate (CAS 12045-88-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1508656-1 (accessed 2026-10-24).

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