Sodium Metasilicate Pentahydrate
Ankit Silicate manufactures a wide range of high-quality Sodium Metasilicate grades designed to meet the requirements of various industries. When dissolved in water, Sodium Metasilicate forms a highly alkaline solution that softens water and enhances cleaning efficiency. It is extensively used in the metal, detergent, ceramic, and other industrial cleaning applications — both directly and indirectly.
Our Sodium Metasilicate Pentahydrate is a multifunctional product known for its excellent pH-regulating capacity, effective detergency, strong corrosion inhibition, and good dispersing properties. It is environmentally safe and formulated to deliver superior performance across multiple applications. Our advanced granulation process and strict quality control standards ensure a product that is pure, stable, and consistent.
Chemically, Sodium Metasilicate Pentahydrate contains both silica (SiO₂) and sodium oxide (Na₂O) in a molar ratio of approximately 1:1. The silica content imparts corrosion-inhibiting properties that help protect both metal and non-metal surfaces, while the sodium oxide component provides strong alkalinity for high solubility and superior cleaning action. The pentahydrate form also contains about 43% water of crystallization, which contributes to its stability and ease of handling.
Properties & Advantages
- White and free-flowing granules or powder.
- Dissolves easily, even in cold water.
- High bulk density with low dust content.
- Negligible insoluble residues ensure product purity.
- As a highly alkaline product, Sodium Metasilicate readily reacts with CO2. Our advanced production methods minimize the risk of partial inactivity caused by CO2 contamination, as there is no contact between our products and combustion gases. This ensures a consistently pure and active Sodium Metasilicate.
Chemical Identifiers
- Chemical Name: Sodium Metasilicate
- Compound Formula: Na2SiO3 · 5H2O
- Molecular Weight: 212.74
- CAS No: 10213-79-3
- Chemical Formula: Na2O·mSiO2
- EINECS Number: 229-912-9
- HSN Code: 28391900
- MDL Number: MFCD00149176
- IUPAC Name: Disodium; dioxido(oxo)silane; pentahydrate
- SMILES: O.O.O.O.O.[O-][Si](=O)[O-].[Na+].[Na+]
- Transport Information: UN 3253, Class 8 / PG 3
- RTECS Number: VV9287500
Synonyms
- Sodium silicate pentahydrate
- Mesto beads
- Disodium trioxosilicate (monosilicate)
- Disodium oxosilanediolate pentahydrate
- Sodium siliconate pentahydrate
- Sodium polysilicate pentahydrate
- Sodium sesquisilicate pentahydrate
- Disodium metasilicate pentahydrate
- Disodium silicate pentahydrate
- Sodium silicon oxide pentahydrate
- Disodium monosilicate pentahydrate
- Sodium oxosilanediolate pentahydrate
- Silicic acid, disodium salt, pentahydrate
- Silicic acid (H2SiO3), disodium salt, pentahydrate
Sodium Meta Silicate Properties
| Parameter | Unit | Typical Value |
|---|---|---|
| Chemical Formula | - | Na2SiO3·5H2O |
| CAS No | - | 10213-79-3 |
| Molar Ratio | - | 1,0 |
| SiO2 Content | % | 28,5 |
| Na2O Content | % | 28,5 |
| Dry Matter | % | 57 |
| Bulk Density | g/L | 950 |
| Melting Point | °C | 72 |
| pH (1% Solution) | - | 12.75 |
| Purity (as Na2SiO3·5H2O) | % | 99 |
| Insoluble Matter | % | 0.10 |
Health & Safety Information
| Signal Word | Danger |
| Hazard Statements | H314–H335 |
| Hazard Codes | C |
| Risk Codes | 34 – 37 |
| Safety Statements | 13 – 24/25 – 36/37/39 – 45 |
| GHS Pictogram |
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Main Applications
- Offset printing.
- Oil and drilling, water treatment, textiles, refractory, pulp and paper, fire protection.
- Metal surface treatment, ceramic, geopolymer, detergent.
Testing Facility
All the parameters are tested in our in-house laboratory using processes issued by the Bureau of Indian Standards (BIS). The instruments used in the testing process are regularly calibrated. All our products are approved, and we are an ISO 9001 2015 company and NABL Certified Laboratory.
Technical Datasheet
Seafty Datasheet
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