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Molar mass of Disodium hydrogen phosphate

The molecular formula of Disodium hydrogen phosphate is Na2HPO4, giving a molar mass of 141.958 g/mol.

Molar mass
141.958g/mol

Computed from the formula with the IUPAC conventional atomic weights (abridged, 2021 edition).

Formula
Na2HPO4
Category
Buffer Components
Atoms per molecule
8

Disodium hydrogen phosphate conversions

Mass ↔ amount and solution conversions derived from the stored molar mass of 141.958 g/mol.

1 mmol141.958 mg
1 g7.0443 mmol
1 M141.958 g/L

About Disodium hydrogen phosphate

The basic partner of sodium dihydrogen phosphate, used with it to make PBS and phosphate buffers across pH 6–8. Its buffering capacity peaks near its second pKa of 7.2, close to physiological pH.

Related compounds

Other entries in Buffer Components.

Disodium hydrogen phosphate — FAQ