... -hydroxy propane-1,2,3-tricarboxylate potassium citrate.2. M. F.: K3C6H5O7.H2O3. M. W.: 324.414. Physical properties: White or slightly crystal ... is 1.98. It will melt and decompose when heated to 230°C.5. Quality standard: (GB14889-94, BP2009, FCC-V ... moisture, heat and poisonous substance. Handled with care, so as to avoid damage to packing bags.