Sodium citrate tribasic dihydrate

grade

ACS reagent

Quality Level

200

Assay

≥99.0%

impurities

≤0.003% Ammonia (NH₃)
≤0.005% Insoluble matter

pH

7.0-9.0 (25 °C 5% in solution)

mp

>300 °C (lit.)

solubility

water: soluble 29.4 g/L at 20 °C (completely)

anion traces

chloride (Cl^–): ≤0.003%
sulfate (SO₄^2-): ≤0.005%

cation traces

Ca: ≤0.005%
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES string

O.O.[Na+].[Na+].[Na+].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O

InChI

1S/C6H8O7.3Na.2H2O/c7-3(8)1-6(13 5(11)12)2-4(9)10;;;;;/h13H 1-2H2 (H 7 8)(H 9 10)(H 11 12);;;;2*1H2/q;3*+1;;/p-3

InChI key

NLJMYIDDQXHKNR-UHFFFAOYSA-K