Appearance:Wedge-shaped colorless monoclinic crystal or white granules or crystalline powder Properties:The relative density of 1.587. Melting point 185 ~ 187 ℃. Uses:Biological medium. Separation of calcium and magnesium. Determination of 1 - naphthol. Complexometric titration of boron masking agent. Determination of trace analysis of organic carbon, hydrogen and oxygen standards. Sweetener. Storage:Sealed in dry place.