Product
Sodium Silicate
Sodium Silicate (water glass) is used as a flotation depressant and dispersant in mining, and as a binder, detergent builder and silica raw material.
- Grades / forms
- Liquid & powder · Depressant grade
Overview
Sodium silicate is a glass of silica and soda, sold as a viscous solution or as solid lumps. Its properties are set by the weight ratio of SiO₂ to Na₂O: lower ratios are more alkaline and more soluble, higher ratios are more 'neutral' and bind more strongly.
In flotation it depresses silicate gangue minerals and disperses slimes, which sharpens separation in fluorite, phosphate, scheelite and other non-sulphide circuits. In industry it binds foundry sand and corrugated board, builds detergents, stabilises soil and is the starting material for silica gel and precipitated silica.
Applications
- 1Depressant and dispersant in mineral flotation
- 2Builder in detergent powders
- 3Adhesive for corrugated board and paper tubes
- 4Binder for foundry moulds (CO₂ process)
- 5Soil stabilisation and grouting
- 6Raw material for silica gel and precipitated silica
Packing & storage
Packing
- 250–300 kg HDPE drums
- 1000 L IBCs
- Lumps in jumbo bags
Storage & handling
Liquid grades are alkaline and should be kept in closed containers to stop a skin forming. Protect from freezing. Lumps are dissolved under pressure with steam.
Enquire
Get a price for Sodium Silicate
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Request a quotation or call +91 97979 77958- Certificate of Analysis with every batch
- SDS in destination format
- Made to your specification
- Private label packing
Questions
Sodium Silicate, answered.
Flotation commonly uses sodium silicate with a weight ratio of about 2.4 to 3.3. Higher-ratio grades are stronger gangue depressants; the right ratio and dose are confirmed by laboratory flotation tests on the ore.
Lumps are much cheaper to ship because they contain no water, but they need a pressure dissolver with steam. Liquid sodium silicate is ready to use and suits plants without dissolving equipment.
Sodium silicate solutions are alkaline and irritating to skin and eyes, with higher-alkalinity (low-ratio) grades being more corrosive. Most liquid grades are not regulated as dangerous goods for sea freight, but goggles and gloves should be worn.
Yes. Cosmo Chemistry manufactures and exports Sodium Silicate from Surat, Gujarat, India to more than 55 countries, for customers in the water treatment and mining & oil drilling industries. Send your grade, quantity and destination port for a quotation within one business day.
Every shipment of Sodium Silicate from Cosmo Chemistry includes a batch-specific Certificate of Analysis (COA) and Safety Data Sheet (SDS). Certificate of Origin, third-party pre-shipment inspection and destination-specific regulatory documentation are arranged on request.
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