Properties and uses: Colorless and transparent monoclinic crystal, easily soluble in water, methyl alcohol, ethyl alcohol, and liquid ammonia. It can be used in cultivating pollution-free vegetables, melons and fruits, flowers and trees in agriculture. In industry, it can be used as flocculant for rubber latex and as cement solidification accelerant.Main indexUnitIndustrial gradeAgricultural gradeContent%>=99.099.0PH value-5—75—7Water insoluble matter%<=0.010.01Heavy metal%<=0.0010.001Sulfate%<=0.030.03Iron%<=0.0020.003Chloride%<=0.0050.005Calcium oxide%>=-23.4Nitrogen content%>=-11.76