Description
Sodium Metasilicate Pentahydrate 99%
Sodium Metasilicate Pentahydrate 99% (CAS 10213-79-3, molecular formula Na2SiO3·5H2O) is a formulation raw material used by detergent, personal care and industrial cleaning manufacturers who need stable active matter and reproducible performance. China Chemicals supplies it at 99% min in pack sizes from 1 kg through to 1000 kg Bulk Bag, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as Metso, Sodium Metasilicate, SMS Pentahydrate. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- Alkaline builder in industrial degreasers
- Bottle washing and dairy CIP formulations
- Metal cleaning and paint stripping
- Corrosion inhibition for aluminium and zinc
- Detergent powder and dishwash tablet manufacture
Technical specification
| Chemical name | Sodium Metasilicate Pentahydrate 99% |
|---|---|
| Synonyms | Metso, Sodium Metasilicate, SMS Pentahydrate |
| CAS number | 10213-79-3 |
| Molecular formula | Na2SiO3·5H2O |
| Appearance | White free-flowing granules |
| Assay | 99.0% min |
| SiO2 content | 28 – 30% |
| Na2O content | 28 – 30% |
| pH (1% solution) | 12.3 – 12.7 |
| Water insolubles | 0.1% max |
| Iron (Fe) | 50 ppm max |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 kg, 5 kg, 25 kg Bag, 1000 kg Bulk Bag. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: UN3253 · Corrosive, Class 8. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
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