Silico Tungstic Acid
Silico Tungstic Acid
Silico Tungstic Acid, also known as Silicotungstic Acid or Tungstosilicic Acid, is a heteropoly acid containing silicon and tungsten. It is commonly supplied in anhydrous and hydrated forms and is valued for its strong acidic and catalytic properties. The compound is widely used in chemical catalysis, specialty chemical processing, mineral separation, and laboratory research.
Our Silico Tungstic Acid is supplied under controlled quality standards to provide consistent chemical composition, high tungsten content, and reliable performance for industrial, laboratory, and research applications.
Chemical Formula: H₄[Si(W₃O₁₀)₄]·xH₂O
Applications
- Chemical Catalyst
- Specialty Chemical Manufacturing
- Esterification Reactions
- Organic Synthesis
- Mineral Separation
- Analytical Chemistry
- Chemical Processing
- Catalyst Preparation
- Research & Development
- Laboratory Applications
- Preparation of Tungsten-Based Materials
Key Features
- High Tungsten Content
- Strong Heteropoly Acid
- Excellent Water Solubility
- Consistent Chemical Composition
- High Chemical Stability
- Suitable for Catalytic Applications
- Suitable for Laboratory & Research Use
- Reliable Batch Quality
- Available in Different Grades as Required
Why Choose Us?
- High-Quality Silico Tungstic Acid
- High Tungsten Content
- Consistent Purity and Composition
- Strict Quality Control
- Reliable Batch-to-Batch Performance
- Competitive Pricing
- Bulk Supply Available
- Customized Specifications Available
- Timely Delivery
- Technical Support
Product Specifications
| Property | Specification |
|---|---|
| Product Name | Silico Tungstic Acid |
| Chemical Name | Silicotungstic Acid / Tungstosilicic Acid |
| Chemical Formula | H₄[Si(W₃O₁₀)₄] |
| Hydrated Formula | H₄[Si(W₃O₁₀)₄]·xH₂O |
| CAS Number | 12027-38-2 (Anhydrous) / 12027-43-9 (Hydrate) |
| EC Number | 234-719-8 (Hydrate) |
| Molecular Weight | 2878.16 g/mol (Anhydrous Basis) |
| Appearance | White to Slightly Yellow Solid / Powder |
| Tungsten (W) Content | Approximately 76.65% on anhydrous basis |
| Silicon (Si) Content | Approximately 0.98% on anhydrous basis |
| Solubility in Water | Soluble |
| Physical Form | Powder / Crystalline Solid |
| Grade Available | Technical Grade / Industrial Grade / Laboratory Grade |
| Storage | Store in a Cool, Dry & Well-Ventilated Place |
The anhydrous molecular formula and molecular weight are reported by the Royal Society of Chemistry's Merck Index. Commercial hydrated products such as TCI and Sigma-Aldrich use CAS 12027-43-9 and report the molecular weight on an anhydrous basis as 2878.16–2878.17 g/mol.
Storage & Handling
Store Silico Tungstic Acid in a cool, dry, and well-ventilated area. Keep the container tightly closed when not in use and protect the product from excessive moisture and contamination. For hydrated commercial grades, follow the manufacturer's recommended storage conditions; TCI recommends storage in a cool, dark place below 15°C for its hydrated product.
Safety Information
Handle Silico Tungstic Acid using appropriate personal protective equipment (PPE), including protective gloves, safety goggles, and suitable protective clothing. Avoid inhalation of dust and contact with skin and eyes.
Because Silico Tungstic Acid is a strongly acidic heteropoly compound, appropriate chemical-handling procedures should be followed. Avoid unnecessary exposure and use suitable ventilation when handling powdered material.
Always refer to the latest Safety Data Sheet (SDS) for the exact grade before handling, transporting, or using the product.
Industries Served
- Specialty Chemical Industry
- Chemical Manufacturing
- Catalyst Industry
- Pharmaceutical & Fine Chemical Research
- Mineral Processing
- Analytical Laboratories
- Chemical Processing
- Tungsten Chemical Industry
- Research Laboratories
- Industrial R&D
- Advanced Materials Research