Disodium disilicate
二硅酸钠
Also known as: Disodium disilicate, Silicic acid (H2Si2O5) disodium salt, Disodium disilicate n-hydrate, Dinatriumdisilikat, Sodium oxosilanediolate (2:1)
Disodium disilicate (CAS 13870-28-5) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Na4O6Si2 and a molecular weight of 244.126 g/mol. It is also known as Silicic acid (H2Si2O5) disodium salt, Disodium disilicate n-hydrate and Dinatriumdisilikat. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 13870-28-5
- Jingsj CID
- J-1314070-6
- Molecular Formula
- Na4O6Si2
- Chinese Name
- 二硅酸钠
- Molecular Weight
- 244.126 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
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Request a quoteFrequently Asked Questions
What is the CAS number of Disodium disilicate?
The CAS number of Disodium disilicate is 13870-28-5.
What are the molecular formula and molecular weight of Disodium disilicate?
Disodium disilicate has molecular formula Na4O6Si2 and molecular weight 244.126 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Disodium disilicate (CAS 13870-28-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1314070-6 (accessed 2026-10-26).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.