Sodium Metasilicate Pentahydrate,

SiO2: 28.5+ - 0.7%

Na2O: 28.7+ -0.7%

Water insoluble: <0.0015%

Fe: <0.01%

PH: 12.5+ -0.3

Whiteness: 85

Loss of iganition: 43.0+ -1.0

Size: >1250um<2%

      <180um <2%


Used in making high efficiency detergent and metal cleaner. Instead of STPP. It can raise cleaning efficiency and reduce environment plllution, provides excellent alkaline buffer, corrosion prevention for metal(i. E Zinc, Aluminum), and function of softening water.