Monosodium phosphate

Monosodium phosphate
	; Phosphorus, P Oxygen, O Hydrogen, H Sodium, Na
Names
	IUPAC name Sodium dihydrogen phosphate
	Other names Monobasic sodium phosphate; Sodium biphosphate;
Identifiers
CAS Number	7558-80-7 ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:37585 ;
ChEMBL	ChEMBL1368 ;
ChemSpider	22626 ;
ECHA InfoCard	100.028.591
E number	E339(i) (antioxidants, ...)
PubChem CID	24204;
UNII	KH7I04HPUU ;
CompTox Dashboard (EPA)	DTXSID7035222 ;
	InChI InChI=1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1 Key: AJPJDKMHJJGVTQ-UHFFFAOYSA-M ;
	SMILES [Na+].[O-]P(=O)(O)O;
Properties
Chemical formula	NaH2PO4
Molar mass	119.976 g·mol−1
Appearance	White powder or crystals
Density	2.36 g/cm3 (anhydrous)
Solubility in water	59.90 g/(100 mL) (0°C)
Hazards
NFPA 704 (fire diamond)	0 0 0
Flash point	Non-flammable
Related compounds
Other cations	Monopotassium phosphate; Monoammonium phosphate;
Related compounds	Disodium phosphate; Trisodium phosphate;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Monosodium phosphate (MSP), also known as monobasic sodium phosphate and sodium dihydrogen phosphate, is an inorganic compound with the chemical formula Na H₂P O₄. It is a sodium salt of phosphoric acid. It consists of sodium cations (Na⁺) and dihydrogen phosphate anions (H₂PO−4). One of many sodium phosphates, it is a common industrial chemical. The salt exists in an anhydrous form, as well as monohydrate and dihydrate (NaH₂PO₄·H₂O and NaH₂PO₄·2H₂O respectively).

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