Disodium hydrogen phosphate heptahydrate

磷酸氢二钠七水合物

Also known as: Sodium phosphate dibasic heptahydrate, Dibasic sodium phosphate heptahydrate, Disodium phosphate heptahydrate, Disodium hydrogen phosphate heptahydrate, Sodium monohydrogen phosphate heptahydrate, Secondary sodium phosphate heptahydrate, sec-Sodium phosphate heptahydrate, DSP heptahydrate, Phosphoric acid, disodium salt, heptahydrate, Sodium phosphate, dibasic, 7-hydrate

Disodium hydrogen phosphate heptahydrate (CAS 7782-85-6) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H15Na2O11P and a molecular weight of 268.066 g/mol. It is also known as Sodium phosphate dibasic heptahydrate, Dibasic sodium phosphate heptahydrate and Disodium phosphate heptahydrate. Key properties include a melting point of 48 °C, a boiling point of 158ºC at 760 mmHg and a density of 1.68 g/mL at 25 °C(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

7782-85-6

Jingsj CID

J-25938-7

Molecular Formula

H₁₅Na₂O₁₁P

Chinese Name

磷酸氢二钠七水合物

Molecular Weight

268.066 g/mol

Category

Inorganic Chemicals

Last updated

8/21/2026