Sodium Silicate Meta (Metasilicate)

Synonyms: Sodium metasilicate, metasilisic acid sodium salt, E550

Chemical formula: Na2SiO3.5H2O

International name: SODIUM METASILICATE PENTAHYDRATE

Grade: import, AR

Appearance: white powder

Sodium silicate meta 5-hydrate (sodium metasilicate 5-hydrate) is a white powder, metasilisic acid sodium salt, hydrated sodium silicate, capable of absorbing carbon dioxide from the air. Anhydrous sodium silicate meta is also available.

Production

Sodium metasilicate 5-hydrate is produced by alkaline-siliceous solution isohydric crystallization.

Application

Aqueous sodium metasilicate is used as follows:

• in production of household and technical washing, bleaching and cleaning products,
• in textile industry as a textile processing chemical (fabric peroxide bleaching stabilizer) and stock bleacher at textile and knitting factories,
• in metallurgic and mechanic engineering industries during hydrochloric acid neutralization and removal off the metal surfaces,
• as a coagulant for regenerable oils during oil processing,
• as a corrosion inhibitor in recycling water supply,
• in technical processes of oil production and transportation, etc.