... powder, odorless, slightly deliquescence, difficultly soluble in water(0.095g/100mI 25), almost insoluble in ethanol 1,Formula :Ca3(C6H5O7)2· ... odorless, slightly deliquescence, difficultly soluble in water(0.095g/100mI 25°C), almost insoluble in ethanol, When heated to 100°C ... Pb),≤ppm21Mercury(Hg),≤ppm--1Carbonates--Dissolving 1 g of calcium citrate in 10 ml 2 N hydrochloric acid mustnot liberate more ...