... moisture absorption and slight particular odor, soluble in alcohol, glycerol.3. Specifications: Based on China Pharmacopeia 2005 edition,Part Two Sanction ... by Jinagsu Food And Drug Administration) ItemSpecificationAppearanceWhite loose powderpH2.5-3.5Benzene,%≤0.0002Loss on drying,%≤2.0Residue on ignition,%≤2 ...