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).^[1]

^ Schrödter, Klaus; Bettermann, Gerhard; Staffel, Thomas; Wahl, Friedrich; Klein, Thomas; Hofmann, Thomas (2008). "Phosphoric Acid and Phosphates". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a19_465.pub3. ISBN 978-3527306732.

Names

Phosphorus, P Oxygen, O Hydrogen, H Sodium, Na

IUPAC name Sodium dihydrogen phosphate
Other names Monobasic sodium phosphate Sodium biphosphate
Identifiers
CAS Number	7558-80-7^Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:37585^Y
ChEMBL	ChEMBL1368^Y
ChemSpider	22626^Y
ECHA InfoCard	100.028.591
E number	E339(i) (antioxidants, ...)
PubChem CID	24204
UNII	KH7I04HPUU^N
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^Y Key: AJPJDKMHJJGVTQ-UHFFFAOYSA-M^Y
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). N verify (what is ^YN ?) Infobox references