CAS: 1344-09-8 EINECS: 231-130-8 HS Code: 2839191000 Appearance: Colorless to greenish glassy blocks Total content: more than 99% /98.5% /99% Specifications: Molar ratio: 2.0-2.2;2.3-2.4 / 3.0-3.2;3.35-3.45 / 3.0-3.2;3.35-3.45 Na2O: 32%;29% / 24%;23% / 24%;23% SiO2: 67%;69% / 74%;75% / 74%;75% Fe: less than 0.03% / 0.025% / 0.018% Application: 1) Chemicals: Raw material for the manufacture of amorphous silica, silica gel, molecular screens and white fillers. 2) Detergents: Indispensable raw material of washing powder, laundry detergent and soap. Additive for alkalinity control and corrosion inhibition. 3) Textiles: Stabilizer in bleaching with hydrogen peroxide; Metal sequestering agent; PH regulator. 4) Paper industry: Adhesive for corrugated cardboard; Stabilizer in bleaching with hydrogen peroxide. 5) Foundry: Binder of molding sands. 6) Mining: Additive for mineral pelletizing. 7) Construction: Floor consolidation. 8) Welding: Binder in manufacture of rods. 9) Metallurgy and Refractory: Materials Setting accelerator for cement and refractories curing. Certifications: 1). National Quality Trustworthy Products Certification 2). China Famous Brand Certification 3). ISO9001-2000 International Quality System Certification Supply Ability: 15,000 ton per month Min. Order Quantity: 20 tons Delivery: 7 days Packaging: Jumbo PP bag or bulk in container