Sodium phosphotungstate hydrate
Also known as: Sodium phosphotungstate tribasic hydrate, Sodium tungsten phosphate hydrate, Phosphotungstic acid sodium salt hydrate, Sodium dodecatungstophosphate hydrate, trisodium,dioxotungsteniooxy-[[[[[[[[[(oxido(dioxo)tungstenio)oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio]oxy-dioxotungstenio
Sodium phosphotungstate hydrate (CAS 312696-30-3) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H3Na3O41PW12 and a molecular weight of 2965.02000 g/mol. Key property: a melting point of >350ºC(lit.). It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. It is listed by 2 suppliers, 1 of which publish reference prices, from 1.60 to 1,600.00 CNY. Record last updated Nov 3, 2026.
- CAS No.
- 312696-30-3
- Jingsj CID
- J-40546-9
- Molecular Formula
- H3Na3O41PW12
- Molecular Weight
- 2965.02000 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 11/3/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In StockPlatform-operated | 99% 500g | ¥800.00 | $0.24 /gBest ¥1.60/g CNY | CN China MOQ 500g | |
In StockPlatform-operated | 99% 100g | ¥180.00 | $0.27 /g ¥1.80/g CNY | CN China MOQ 100g | |
Made to OrderPlatform-operated | 99% 1kg | ¥1,600.00 | $239.43 /kg ¥1,600.00/kg CNY | CN China MOQ 1kg |
Physicochemical Properties
| Melting Point | >350ºC(lit.) |
|---|---|
| Exact Mass | 2966.17000 |
| PSA | 102.46000 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Frequently Asked Questions
What is the CAS number of Sodium phosphotungstate hydrate?
The CAS number of Sodium phosphotungstate hydrate is 312696-30-3.
What are the molecular formula and molecular weight of Sodium phosphotungstate hydrate?
Sodium phosphotungstate hydrate has molecular formula H3Na3O41PW12 and molecular weight 2965.02000 g/mol.
Which suppliers offer Sodium phosphotungstate hydrate?
2 supplier(s) listed; reference unit price ¥1.60–1600.00 /g.
Is Sodium phosphotungstate hydrate hazardous?
Sodium phosphotungstate hydrate has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
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 hydrate (CAS 312696-30-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40546-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.