Potassium dihydrogen phosphate
磷酸二氢钾
Also known as: Monopotassium phosphate, Potassium phosphate monobasic, Potassium dihydrogen phosphate anhydrous, Phosphoric acid monopotassium salt, Monopotassium dihydrogen phosphate, Monopotassium orthophosphate, dihydrogène phosphate de potassium, PHOSPHATE LOW NO 1, PHOSPHATE LOW NO 2, PHOSPHATE STANDARD SOLUTION
Potassium dihydrogen phosphate (CAS 7778-77-0) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H2KO4P and a molecular weight of 136.08 g/mol. It is also known as Monopotassium phosphate, Potassium phosphate monobasic and Potassium dihydrogen phosphate anhydrous. Key properties include a melting point of 252.6ºC, a boiling point of 158ºC at 760 mmHg and a density of 2.338. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7778-77-0
- Jingsj CID
- J-47045-0
- Molecular Formula
- H2KO4P
- Chinese Name
- 磷酸二氢钾
- Molecular Weight
- 136.08 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 252.6ºC |
|---|---|
| Boiling Point | 158ºC at 760 mmHg |
| Density | 2.338 |
Frequently Asked Questions
What is the CAS number of Potassium dihydrogen phosphate?
The CAS number of Potassium dihydrogen phosphate is 7778-77-0.
What are the molecular formula and molecular weight of Potassium dihydrogen phosphate?
Potassium dihydrogen phosphate has molecular formula H2KO4P and molecular weight 136.08 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Potassium dihydrogen phosphate (CAS 7778-77-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47045-0 (accessed 2026-10-24).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.