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Hydrofluorosilicic Acid (H2SiF6) 23% Technical Grade
Product Overview - Industrial Grade HFS
Hydrofluorosilicic Acid (HFS) 23% is a high-performance industrial fluorosilicic acid solution used extensively in municipal water fluoridation and specialized industrial processes. This technical-grade acid provides reliable concentration stability and consistent performance characteristics for demanding industrial applications.
Key Properties and Technical Specifications
- Chemical Formula: H2SiF6 (Hexafluorosilicic Acid)
- CAS Number: 16961-83-4
- UN Number: UN1778 (Fluorosilicic Acid)
- Specific Gravity: 1.12 at 20°C
- Concentration: 23% ± 1%
- pH: <1.0
- Appearance: Clear to pale yellow liquid
- Boiling Point: 105°C/221°F
- Freezing Point: -15°C/5°F
- Solubility: Complete in water
Common Industrial Applications
- Municipal Water Treatment: Primary application in public water fluoridation systems
- Metal Surface Treatment: Essential in metal finishing and surface preparation processes
- Glass Industry: Critical component in glass etching and surface modification
- Ceramic Manufacturing: Key ingredient in ceramic production processes
- Industrial Cleaning: Specialized cleaning applications in manufacturing
- Oil Well Acidizing: Enhanced oil recovery operations
Safety and Handling Requirements
Highly corrosive material requiring stringent safety protocols. Mandatory personal protective equipment includes chemical-resistant suit, fluoroelastomer (FKM) or neoprene gloves, full face shield with chemical splash goggles, and appropriate respiratory protection. Store only in fluorinated or approved high-density polyethylene containers - never use glass or standard metal containers. Facilities must maintain dedicated acid handling areas with proper ventilation systems, containment measures, and emergency safety equipment. Neutralization systems must be readily available. Transportation requires compliance with DOT hazardous materials regulations for corrosive substances.
Performance Benefits and Quality Assurance
Our 23% Hydrofluorosilicic Acid solution delivers superior stability and precise concentration control. Each batch undergoes rigorous quality testing to verify acid strength, metal content, and specific gravity specifications. The product maintains optimal performance characteristics for water treatment applications while ensuring consistent results in industrial processes. The standardized specific gravity of 1.12 facilitates accurate metering and dosing operations. Regular quality monitoring ensures product integrity throughout the specified shelf life.
Storage and Handling Specifications
- Store in approved acid-resistant containers in well-ventilated areas
- Temperature-controlled storage between 10°C-30°C (50°F-86°F)
- Secondary containment required for storage areas
- Regular inspection of storage tanks and transfer equipment
- Dedicated acid-resistant pumps and transfer lines
- Proper labeling and hazard communication required
| Property | Value |
|---|---|
| Molecular Weight | 144.08 g/mol |
| Formula | H2SiF6 |
| Assay | 23% |
| Grade | Technical |
| Form | Liquid |
| Solubility | Soluble in water and alcohol |
| Appearance | Colorless, fuming liquid |
| Melting Point | -20 °C |
| Boiling Point | 108 °C |
| Specific Gravity | 1.12 |
| Industry | Environmental, Industrial, Wastewater |
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