Sodium dihydrogen phosphate

Product NameSodium dihydrogen phosphate
CAS89140-32-9
MFH2NaO4P
MW119.98
EINECS231-499-2
MOL File89140-32-9.mol

Chemical Properties

InChI	InChI=1S/Na.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+1;/p-1
InChIKey	AJPJDKMHJJGVTQ-UHFFFAOYSA-M
SMILES	[Na+].P([O-])(O)(O)=O

Usage And Synthesis

Electrical Conductivity

Concentration	0.50%	1%	2%	5%	10%	15%	20%	25%	30%	40%
mS/cm	2.2	4.4	9.1	21	33.2	43.3	49.6	53.1	54	46.1

Uses

Sodium dihydrogen phosphate is used in industries such as boiler water treatment, electroplating, leather making, dyeing, pharmaceuticals, and food processing.

Definition

ChEBI: Sodium dihydrogenphosphate is a sodium phosphate.

Synthesis

Sodium dihydrogen phosphate is synthesized by the reaction of sodium chloride with orthophosphoric acid, or from the reaction of sodium chloride with orthophosphoric acid in the presence of an organic solvent or using an organic amine[1]. Sodium dihydrogen phosphate (NaH₂PO₄) is prepared via controlled neutralization of phosphoric acid with alkali metal bases or alkali metal hydroxides under continuous stirring, maintaining a temperature range of 40-70 °C[2].

References

https://en.wikipedia.org/wiki/Monosodium_phosphate
http://www.wisegeek.com/what-is-monosodium-phosphate.htm
http://www.livestrong.com/article/547871-what-are-the-health-benefits-of-monosodium-phosphate/

References

[1]Doan, P. M., Ange, N., & Patrick, S. (2015). Production of Sodium Dihydrogen Phosphate Using Sodium Chloride and Orthophosphoric Acid. Industrial & Engineering Chemistry Research, 54(50), 12467–12473. https://doi.org/10.1021/acs.iecr.5b02892
[2]Optimization of the synthesis conditions of sodium and potassium dihydrogen phosphates and study of their agrochemical properties