odourless; taste Salty; ealily soluble in water, soluble in glycerine, slightly soluble in ethahol Chinese Bp2004 FCC,1996 Assay≥% 99.0-100.5 99.0 Acidity/basicity test Accord with test Nomal As, ≤% - 0.0003 Heavy Metal (Pb), ≤% 0.0001 0.0005 I or Br Accord with the test Nomal Drying Loss, ≤% 1 1 Soldium experiment -negative Sulphates ≤%0.03 - Pb, ≤%0.0001 - Sodium Salt, ≤% 0.1- Barium salt, ≤% ...