Sodium metasilicate is the chemical substance which is the main component of commercial sodium silicate solutions. It is an ionic compound consisting of sodium cations Na+ and the polymeric metasilicate anions [–SiO2−3–]n. It is a colorless crystalline hygroscopic and deliquescent solid, soluble in water (giving an alkaline solution), but not in alcohols. This substance is produced by reacting molten sodium hydroxide (at a temperature above 320 °C) and silica:
SiO2 + 2NaOH - t → Na 2SiO3 + H2O
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Chemical name
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Sodium Metasilicate Pentahydrate |
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CAS / EINECS
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1023-79-3 / 600-279-4 |
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Code
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283911 |
Specification
Application
- Detergent auxiliary
- Metal surface treatment chemicals
- Grinding aids for cer amic
- Raw material for fir e-proof auxiliary
- Plastic maintenance agent , degreasing and t extile
- Printing and dyeing funct ional auxiliaries
- Water retention auxiliary
- Deinking auxiliary
- Peroxidase bleach st abilizer
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