... :136.09Properties :White or colorless crystal, easily soluble in water, relative density at 2.338, melting point at 252.6°C, and ... .5.Specifications:Name of indexFCCMain contents ≥%99.0PH of 1% water solution4.4 - 4.8Loss on drying ≤%0.05Heavy metals ≤%0 ... warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, so as ...