Monosodium citrate

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Monosodium citrate
Monosodium citrate.png
Names
Other names
sodium dihydrogen 2-hydroxypropane-1,2,3-tricarboxylate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.038.834
EC Number 242-734-6
RTECS number GE9750000
Properties
C6H7NaO7
Molar mass 214.10 g·mol−1
Appearance white powder
hygroscopic
Odor odorless
Melting point 212 °C (414 °F; 485 K)
soluble
Solubility negligible in ethanol
Acidity (pKa) 3.50 - 3.80
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is ☑Y☒N ?)
Infobox references

Monosodium citrate, more correctly, sodium dihydrogen citrate (Latin: natrium citricum acidulatum), is an acid salt of citric acid. Disodium citrate and trisodium citrate are also known. It can be prepared by partial neutralisation of an aqueous solution of sodium bicarbonate or carbonate with citric acid.

NaHCO3 + C6H8O7 → NaC6H7O7 + CO2 + H2O

It is highly soluble in water and practically insoluble in ethanol. Monosodium citrate is used as an anticoagulant in donated blood.[1]

References[edit]