... lose crystal wate,convert to Anhydrous. EnglishChineseGB1889-92Appearance White powdercontent%98.0-105.0Fluorides(As F)≤%(F),%0.005Loss on ignition ... , ≤%,≤%24.5-26.5Heavy metals(As Pb), ≤%(Pb),≤%0.001As, ≤%,≤%0.0002Hydrochloric ... , Furthermore, it should be stored separately from poisonous Substances. food/feed grade dicalcium phosphate USP