... Name:1,2,3-Propanetricarboxylicacid,2-hydroxy-,tripotassiumsalt Alias: tri-Potassium citrate Molecular Formula: K3C6H5O7·H2OMolecular Weight: 324.41 Features: ... crystalline granules or crystalline powderIdentification testpositiveSolution appearancecolorlessAssay(dry) %99.0-101.0≥99.0Chlorides,≤ppm50--Heavy metal (lead),≤%105Na, ≤%0.3 ... .5-9.0As, ≤ppm--1Lead, ≤ppm--1Hg, ≤ppm--1 potassium Citrate