Overview: Foundation of 100,000-Ton Inorganic Silicide Production
Sodium metasilicate series products, primarily available in pentahydrate sodium metasilicate and anhydrous sodium metasilicate (also known as zero-water sodium metasilicate), serve as the cornerstone of modern industrial applications. These versatile compounds are widely utilized across more than 20 industries, including detergents, ceramics, printing and dyeing, forming the fundamental support of a company’s 100,000-ton annual inorganic silicide product matrix.
Pentahydrate Sodium Metasilicate: The Leading Detergent Powerhouse
Product Characteristics
Pentahydrate sodium metasilicate Na₂SiO₃·5H₂O represents the most extensively applied variant in the sodium metasilicate family. This product appears as white crystalline granules with the following key properties:
- High water solubility
- Alkaline aqueous solution
- Excellent dirt removal and emulsification
- Superior dispersion, wetting, and penetration capabilities
Detergent Industry Applications
In the detergent sector, pentahydrate sodium metasilicate has emerged as the ideal replacement for sodium tripolyphosphate (STPP) in phosphate-free laundry powders, liquid detergents, and laundry pastes. Its advantages include:
- Strong alkalinity for effective cleaning
- Superior oil emulsification capabilities
- Chelation of hard water ions for water softening
- Powerful grease removal through wetting, emulsification, and saponification
- Versatile applications in metal surface cleaners and food industry detergents
Metal Surface Treatment
Pentahydrate sodium metasilicate excels in metal surface treatment applications:
- Silicate micelles generated through hydrolysis provide suspension and dispersion of solid dirt particles
- Emulsification of oil stains prevents re-deposition on workpiece surfaces
- pH buffering capacity maintains stability even in the presence of acidic contaminants
- Calcium and magnesium ion complexation softens water
- Corrosion protection for non-ferrous metals including aluminum, zinc, and tin
Ceramic Industry Applications
In ceramic manufacturing, pentahydrate sodium metasilicate functions as a grinding aid and water reducer:
- Increases surface charge density of colloids in ceramic slurries
- Enhances repulsion between particles
- Reduces slurry viscosity while improving fluidity
- Ideal for ceramic slurry injection molding processes
Additional Industrial Applications
Beyond detergents and ceramics, pentahydrate sodium metasilicate plays critical roles in:
- Paper deinking processes
- Acid-resistant building materials
- Crude oil drilling mud adjustment
- And numerous other specialized applications
Anhydrous Sodium Metasilicate: Peak Performance Through Advanced Technology
Product Specifications
Anhydrous sodium metasilicate (zero-water sodium metasilicate) represents the highest technical grade in the sodium metasilicate family. This non-toxic, odorless, and environmentally friendly product appears as white granules or powder with exceptional characteristics:
- No crystalline water content
- Solid content nearly double that of pentahydrate form
- Stronger alkalinity
- Superior dirt removal and pH buffering capabilities
- Easy water solubility
Detergent Industry: Complete STPP Replacement
Anhydrous sodium metasilicate demonstrates complementary functionality with 4A zeolite, enabling complete replacement of sodium tripolyphosphate (STPP) in laundry powder formulations when properly ratioed.
Key Performance Metrics:
- Oil absorption value: 70%
- Superior grease removal compared to hydrated sodium metasilicate
- Ideal for ultra-concentrated detergents, industrial cleaners, and metal surface treatment agents
- No crystalline water precipitation ensures stability
- Exceptional compatibility with organic chlorine, peroxides, and bleach activators in premium detergent formulations
Industrial Cleaning Applications
In industrial cleaning sectors, anhydrous sodium metasilicate serves as a critical component in:
- Metal cleaning agents
- Heavy-duty grease removers
- Petroleum pipeline cleaning agents
Notable advantage: Effective oil stain removal even without surfactant additives – simply prepare an appropriate concentration aqueous solution for immediate use. The product delivers powerful cleaning performance while providing anti-corrosion and anti-rust protection.
Construction and Materials Industry
Anhydrous sodium metasilicate offers unique pour
Post time: May-29-2026