Monosodium phosphate
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| Monosodium phosphate | |
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| IUPAC name | sodium dihydrogen phosphate |
| Identifiers | |
| CAS number | [7558-80-7] |
| PubChem | |
| SMILES | OP(=O)(O)[O-].[Na+] |
| Properties | |
| Molecular formula | H2NaO4P |
| Molar mass | 119.98 g/mol |
| Appearance | White powder or crystals |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Monosodium phosphate (NaH2PO4), also known as anhydrous monobasic sodium phosphate, is used as a laxative and, in combination with other sodium phosphates, as a pH buffer.
The pKa is 7.20. The sodium chloride equivalent value, or E-Value, is 0.49. It is soluble in 4.5 parts water. It is most commonly available as colorless crystals or a white powder. It is insoluble in alcohol.
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