Sodium metasilicate pentahydrate enhances the suspension of removed soils such as grease and dirt deposits and prevents reaccumulation. For this reason, it's commonly used in manufacturing high-efficiency in soaps, detergents, and metal cleaners. It is extensively used in the manufacturing of Detergents, Silica Gel, Card-board, Paper, Textiles, Paints, Adhesives, Pottery, Sanitary-ware, Refractories, Foundry and Wood Processing Industries because of it's very good binding, adhesive, bleaching and sizing properties respectively. Sales Specification Sodium Oxide (Na2O) %: 28.70 -30.00 Silica (SiO2) %: 27.80 -29.20 Water Insoluble %: 0.05 Fe(ppm): 100 ppm Whiteness %: 80 Bulk Density: 0.80 0.97 g/cc PH of 1.0 % Solution: 12- 13 Melting Point: 72.2 oC Particular Size % (16-30 Mesh): 90 Packing 50 lb bag, 44 bags per pallet DOT Transportation UN No: 3253 Shipping name: Disodium Trioxosilicate Hazard class: 8 Packing group: III