Pyrophosphoric acid
焦磷酸
Also known as: Diphosphoric acid, Diphosphorsaeure, Pyrophosphoric(V) acid, Pyrophosphic acid, Pyrophosphorsaeure, UNII-4E862E7GRQ, acide diphosphorique, hydrogen pyrophosphate, phosphono dihydrogen phosphate
Pyrophosphoric acid (CAS 2466-09-3) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H4O7P2 and a molecular weight of 177.975 g/mol. It is also known as Diphosphoric acid, Diphosphorsaeure and Pyrophosphoric(V) acid. Key properties include a melting point of 61 °C and a density of 2.4±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2466-09-3
- Jingsj CID
- J-30158-7
- Molecular Formula
- H4O7P2
- Chinese Name
- 焦磷酸
- Molecular Weight
- 177.975 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 61 °C |
|---|---|
| Density | 2.4±0.1 g/cm3 |
Frequently Asked Questions
What is the CAS number of Pyrophosphoric acid?
The CAS number of Pyrophosphoric acid is 2466-09-3.
What are the molecular formula and molecular weight of Pyrophosphoric acid?
Pyrophosphoric acid has molecular formula H4O7P2 and molecular weight 177.975 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Pyrophosphoric acid (CAS 2466-09-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30158-7 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.