Product Category: Detergent Raw Materials / Industrial Alkalis / Cleaning Chemicals
Chemical Name: Sodium Metasilicate Pentahydrate
Alternative Names: Sodium Metasilicate 5H₂O
CAS Number: 10213-79-3
Chemical Formula: Na₂SiO₃·5H₂O
Molecular Weight: 212.14 g/mol
Appearance: White crystalline powder or granules
Product Overview
Sodium Metasilicate Pentahydrate is a highly alkaline soluble silicate used extensively as a detergent builder, cleaning agent, corrosion inhibitor and industrial process chemical.
When dissolved in water, it produces a strongly alkaline solution with effective grease-cutting and soil-removal properties.
Typical Technical Specification
| Property | Typical Reference |
| SKU | MCS-S13 |
| Appearance | White powder / granules |
| Na₂O | Approx. 28–30% |
| SiO₂ | Approx. 28–30% |
| Dry Matter | Approx. 56–60% |
| Water Insolubles | Typical ≤0.05% |
| pH | Approx. 12–13 |
| Formula | Na₂SiO₃·5H₂O |
| CAS Number | 10213-79-3 |
Commercial technical pentahydrate specifications commonly contain approximately 28–30% Na₂O and 28–30% SiO₂ with pH around 12–13.
Applications
- Industrial detergents
- Heavy-duty cleaners
- Degreasers
- Metal cleaning
- Bottle-washing formulations
- Textile processing
- Water treatment
- Pulp and paper
- Corrosion-inhibitor formulations
- Concrete and construction products
Key Benefits
- Strong alkalinity
- Excellent grease removal
- Effective detergent builder
- Corrosion-inhibition properties
- Good water solubility
- Useful buffering capability
Storage
Store dry and sealed. Avoid moisture exposure.
