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Sodium phosphotungstate octadecahydrate

Also known as: Sodium phosphotungstate, Sodium dodecatungstophosphate hydrate, Sodium tungstophosphate, Sodium phosphowolframate octadecahydrate, Sodiumdodecatungsto phosphate octadecahydrate

Sodium phosphotungstate octadecahydrate (CAS 51312-42-6) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Na3O40PW12 and a molecular weight of 2945.999 g/mol. Key properties include a melting point of 350°C and a boiling point of 158ºC at 760mmHg. It is listed by 2 suppliers, from 1.80 to 2.80 CNY. Record last updated Aug 21, 2026.

CAS No.
51312-42-6
Jingsj CID
J-858726-6
Molecular Formula
Na3O40PW12
Molecular Weight
2945.999 g/mol
Category
Inorganic Chemicals
Last updated
8/21/2026
In Stock

Supplier Offers

2Request a quote
Filter:
SupplierPurity / PackBase PriceUnit PriceOrigin
In Stock
AR
100g
¥180.00
$0.27 /gBest
¥1.80/g CNY
CN China
MOQ 100g
In Stock
AR
500g
¥980.00
$0.29 /g
¥1.96/g CNY
CN China
MOQ 500g
In Stock
99%
500g
¥1,000.00
$0.3 /g
¥2.00/g CNY
CN China
MOQ 500g

Physicochemical Properties

Melting Point350°C
Boiling Point158ºC at 760mmHg
Exact Mass2947.150391
PSA710.58000

Customs & Trade Information

HS Code2842909090

Frequently Asked Questions

What is the CAS number of Sodium phosphotungstate octadecahydrate?

The CAS number of Sodium phosphotungstate octadecahydrate is 51312-42-6.

What are the molecular formula and molecular weight of Sodium phosphotungstate octadecahydrate?

Sodium phosphotungstate octadecahydrate has molecular formula Na3O40PW12 and molecular weight 2945.999 g/mol.

Which suppliers offer Sodium phosphotungstate octadecahydrate?

2 supplier(s) listed; reference unit price ¥1.80–2.80 /g.

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

Last updated:

How to cite: Jingsj. "Sodium phosphotungstate octadecahydrate (CAS 51312-42-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-858726-6 (accessed 2026-11-06).

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