Nippon Chemical Industrial Co.,Ltd.
Product Information Silicates and Silica

Sodium Silicate

Silicic acid (SiO2) and alkali (Na2O) combine to form what is considered the simplest type of glass, and differences in the combining ratio result in different chemical properties, physical properties, and applications.
The molecular formula of sodium silicate is generally expressed as Na2O・nSiO2, where n represents the molar ratio: SiO2/Na2O weight ratio x 1.032. However, commercially produced products are limited to the range of n = 0.5 to 4.

Sodium silicate liquid

Liquid sodium silicate is a sodium silicate also known as water glass, and is a syrup-like, colorless or slightly colored aqueous solution. Liquid sodium silicate is used across a wide range of fields, including civil engineering and construction, anhydrous silicic acid (silica gel), synthetic detergents, pulp and paper, casting, ceramics, and white carbon.
Chemical name: Sodium silicate
Chemical formula: Na2O・nSiO2・XH2O
    
Product NamePacking StyleCAS RN®Chemical NameChemical FormulaSpecific gravity (15°C, Be')SiO2(%)Na2O(%)Molar ratioFe(%)Water insolubles (%)
Sodium Silicate J125 kg/can, 300 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.0–2.3≧59.036.0–38.017.0–18.02.0–2.3≦0.02≦0.05
Sodium Silicate S125 kg/can, 300 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.0–2.352.7–53.731.0–33.015.0–16.02.0–2.3≦0.02≦0.05
Sodium Silicate S50-125 kg/can, 300 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.0–2.349.5–51.529.6–31.613.9–14.92.0–2.3≦0.02≦0.05
Sodium Silicate 47-125 kg/can, 290 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.0–2.346.5–47.527.0–29.013.0–14.02.0–2.3≦0.02≦0.05
Sodium Silicate 38-120 kg/can, 270 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.0–2.338.0–39.021.0–23.010.0–11.02.0–2.3≦0.02≦0.05
Sodium Silicate 48-225 kg/can, 290 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.4–2.747.7–48.730.0–32.011.7–12.72.4–2.7≦0.02≦0.05
Sodium Silicate 45-225 kg/can, 280 kg/drum,1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.4–2.744.0–46.027.0–30.011.0–13.02.4–2.7≦0.02≦0.05
Sodium Silicate 38-220 kg/can, 270 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=2.4–2.738.0–39.023.2–25.29.3–10.32.4–2.7≦0.02≦0.05
Sodium Silicate J325 kg/can, 280 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=3.0–3.3≧40.028.0–30.09.0–10.03.0–3.3≦0.02≦0.05
Sodium Silicate 420 kg/can, 250 kg/drum1344-09-8Sodium silicateNa2O・nSiO2・XH2O n=3.7–3.9≧30.023.0–25.06.0–7.03.7–3.9≦0.02≦0.05
Main applications: Pulp and paper, civil engineering (soil hardening agents), metal cleaning agents, soap and synthetic detergent additives, corrugated cardboard adhesives, binders for casting molds, binders for building material insulation, rapid-setting agents for cement, welding rod coatings, silica gel, white carbon

Sodium Metasilicate

The molecular formula of sodium metasilicate is expressed as Na2O・nSiO2・9H2O, and depending on the bonding state of the water of crystallization, there are nonahydrate, octahydrate, hexahydrate, pentahydrate, monohydrate, and anhydrous forms. Our company handles the nonahydrate, pentahydrate, and anhydrous forms.
Chemical name: Sodium metasilicate
Chemical formula: Na2O・nSiO2・XH2O
Product NamePacking StyleCAS RN®Chemical NameChemical FormulaSiO2(%)Na2O(%)Molar ratio
Sodium Metasilicate pentahydrate25 kg/paper bag10213-79-3Sodium metasilicate nonahydrateNa2O・nSiO2・5H2O n=0.9–1.127.5–29.028.5–30.00.9–1.1
Main applications: Metal cleaning agents, degreasing agents, detergent builders, dry cleaning aids

Orthosilicate

Sodium orthosilicate has the molecular formula Na2O・nSiO2 and is the sodium silicate with the lowest molar ratio. Our company offers two types based on form: granular orthosilicate and powdered orthosilicate.
Chemical name: Sodium orthosilicate
Chemical formula: Na2O・nSiO2
Product NamePacking StyleCAS RN®Chemical NameChemical FormulaSiO2(%)Na2O(%)Molar ratio
Sodium Orthosilicate (Granular )25 kg/paper bag13472-30-5Sodium orthosilicateNa2O・nSiO2 n=0.49–0.5926.5–29.551.5–55.50.49–0.59
Sodium Orthosilicate (Powder)25 kg/paper bag13472-30-5Sodium orthosilicateNa2O・nSiO2 n=0.49–0.5926.5–29.551.5–55.50.49–0.59
Main applications: Metal cleaning agents, degreasing agents, detergent builders, dry cleaning aids

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