Potassium citrate tribasic monohydrate

200

99-100.5% (calc with ref. to anhyd. subst.)

powder or crystals

meets analytical specification of Ph. Eur., BP, FCC, E332

≤0.0005% heavy metals (as Pb), 4-6% water (Karl Fischer)

3-6 loss on drying, 180°C

7-9 (20 °C, 5%)

275 °C (dec.) (lit.)

glycerol: soluble 1 gm in 2.5 ml, water: soluble 1 gm in 0.65 ml, alcohol: insoluble

chloride (Cl^-): ≤30 mg/kg, oxalate (as oxalic acid): ≤100 mg/kg, sulfate (SO₄^2-): ≤50 mg/kg

As: ≤1 mg/kg, Cu: ≤10 mg/kg, Fe: ≤10 mg/kg, Hg: ≤1 mg/kg, Na: ≤3000 mg/kg, Pb: ≤1 mg/kg, Zn: ≤10 mg/kg

in accordance for appearance of solution, passes test for reaction against H₂SO₄

pharmaceutical (small molecule)

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

1S/C6H8O7.3K.H2O/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);;;;1H2/q;3*+1;/p-3

PJAHUDTUZRZBKM-UHFFFAOYSA-K