... or crystalline powder odorless; taste salty and cold, soluble in water, difficulty in ethanol; slightly deliquescence in moist air,pH7.5 ... solution, when heated to 150°C,it may lose crystal water.5,Packing: 25kg net paper bag or 1mt big bag ... -9Arsenic(As),≤ppm--1Lead(Pb),≤ppm--1Mercury(Hg),≤ppm--1 sodium citrate