Phosphomolybdic acid hydrate
Also known as: Phosphomolybdic acid, Molybdophosphoric acid, 12-Molybdophosphoric acid hydrate, 12-Molybdatophosphoric acid hydrate, Molybdophosphoric acid hydrate, Phosphomolybdic acid n-hydrate, PMA, Trioxomolybdenum - phosphoric acid (12:1)
Phosphomolybdic acid hydrate (CAS 51429-74-4) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H3[P(Mo3O10)4] · xH2O and a molecular weight of 1825.254 g/mol. Key properties include a melting point of 78-90°C, a boiling point of 158ºC at 760mmHg and a density of 1.62 g/mL at 25 °C(lit.). It is classified under GHS with signal word Danger and hazard statements H272 and H314 — Causes severe skin burns and eye damage. It is listed by 2 suppliers, from 0.76 to 2.72 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 51429-74-4
- Jingsj CID
- J-1367155-8
- Molecular Formula
- H3P(Mo3O10)4xH2O
- Molecular Weight
- 1825.254 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to OrderPlatform-operated | 99% 500g | ¥380.00 | $0.11 /gBest ¥0.76/g CNY | CN China MOQ 500g | |
In Stock | AR 500g | ¥792.00 | $0.24 /g ¥1.58/g CNY | CN China MOQ 500g | |
In Stock | AR 100g | ¥258.00 | $0.39 /g ¥2.58/g CNY | CN China MOQ 100g |
Physicochemical Properties
| Melting Point | 78-90°C |
|---|---|
| Boiling Point | 158ºC at 760mmHg |
| Density | 1.62 g/mL at 25 °C(lit.) |
| Exact Mass | 1848.658691 |
| PSA | 711.32000 |
GHS Safety & Compliance
- H272
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Phosphomolybdic acid hydrate?
The CAS number of Phosphomolybdic acid hydrate is 51429-74-4.
What are the molecular formula and molecular weight of Phosphomolybdic acid hydrate?
Phosphomolybdic acid hydrate has molecular formula H3[P(Mo3O10)4] · xH2O and molecular weight 1825.254 g/mol.
Which suppliers offer Phosphomolybdic acid hydrate?
2 supplier(s) listed; reference unit price ¥0.76–2.72 /g.
Is Phosphomolybdic acid hydrate hazardous?
Phosphomolybdic acid hydrate has GHS signal word Danger and hazard statements H272; H314 — Causes severe skin burns and eye damage.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phosphomolybdic acid hydrate (CAS 51429-74-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1367155-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.