Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
Food-Grade Colloidal Silica
Classification :
Anti-Caking Silicon Dioxide
Keywords :
Food-Grade Colloidal Silica
PRODUCT DETAILS
Food-grade colloidal silica (SiO₂, International Code E551) is manufactured via sol-gel process under acidic conditions. Fully compliant with FDA 21CFR 177.2600, EU LFGB, USP, and FCC standards, it benchmarks Evonik Ludox and Grace’s equivalent colloidal silica products. With SiO₂ purity ≥98%, this nano-scale colloidal dispersion (dust-free) offers excellent suspension, thickening, and film-forming properties—serving as a specialized functional additive for liquid/semi-solid foods with compatibility across various food substrates.
1. Technical Specifications
Parameter | Details |
Product Name | Food-Grade Colloidal Silica |
Appearance | Colorless transparent / milky white colloidal dispersion, no particles |
Particle Size Range | 5-50nm (nano-scale, matching Evonik Ludox) |
Silica Content | 20%-40% (solid content, customizable) |
pH Value | 2.0-10.0 (adjustable for specific applications) |
Viscosity | 5-50mPa·s (25℃, benchmarking Grace) |
Typical Addition Level | 0.01%-0.5% (compliant with FDA/EU limits) |
Shelf Life | 18 months (sealed, room temperature) |
Executive Standards | FDA 21CFR 177.2600, EU LFGB, USP, FCC |
Packaging | 25/200kg food-grade PE drums |
Lead Time | 5-10 days |
Sample | Free of charge |
Production Capacity | 10,000-ton-class dedicated colloidal silica production line |
2. Application Instructions
Benchmarking Evonik Ludox’s food-grade colloidal silica series, this product delivers three core functions for liquid/semi-solid food applications:
- Suspension Stability: Adding 0.01%-0.5% to fruit juices, plant protein beverages, and nutritional liquids prevents sedimentation of pulp and nutritional particles, maintaining uniform system stability.
- Thickening & Film-Forming: Enhances product viscosity and texture in sauces, jellies, and candies, forming a transparent protective film to prevent moisture loss.
- Emulsification Compatibility: Stabilizes emulsification in oil-water two-phase food systems (avoiding stratification) and is compatible with various food emulsifiers to extend product shelf life.
Widely used in fruit and vegetable beverages, plant protein beverages, seasoning sauces, jellies/candies, and oral liquid foods—with addition levels adhering to global liquid food industry standards.
3. Factory Advantages
Focused on R&D and production of food-grade colloidal silica, our technical indicators seamlessly align with Evonik Ludox and Grace’s equivalent products:
- Hold core patents for sol-gel processes, equipped with a food-grade sterile production base—lines are constructed with fully enclosed food-grade 304 stainless steel to avoid cross-contamination.
- Utilize imported testing equipment (e.g., nano-particle size analyzers, viscometers) and establish a dedicated quality control system for colloidal dispersions with 20 full-process inspection procedures to ensure uniformity.
- Our technical team adjusts pH value, solid content, and viscosity per customer requirements, providing liquid food formula optimization solutions aligned with Evonik’s downstream application technology.
- Dual-certified with ISO22000 and FSSC22000 food safety certifications, ensuring product compliance with global liquid food market access requirements.
4. Shipping & Packaging
- Standard Packaging: 25kg food-grade PE small drums, 200kg food-grade PE large drums.
- Leak-Proof Design: Double-sealed drum lids with leak-proof gaskets and anti-collision labels on drum bodies.
- Storage & Transportation: Store sealed at room temperature (avoid direct sunlight and freezing); shelf life 18 months; non-hazardous chemical, complying with global liquid food excipient transportation standards.
- Labeling Compliance: Each drum is marked with food-grade colloidal silica, solid content, addition limits, and usage methods—providing Chinese/English bilingual labels that meet food-grade liquid excipient labeling standards.
5. Frequently Asked Questions
Q: Can this product be interchangeable with Evonik Ludox’s food-grade colloidal silica?
A: Yes. Core indicators (particle size, solid content, viscosity) are identical, with matching dispersion and compatibility—offering higher cost-effectiveness for seamless replacement.
Q: Will the colloidal form affect food appearance and taste?
A: No. As a nano-scale dispersion with addition level ≤0.5%, it disperses completely in food without granularity. Transparent variants do not alter food color, while milky white variants adjust product viscosity.
Q: Which foods are suitable for products with different pH values?
A: Acidic (pH 2.0-4.0) is suitable for acidic beverages (e.g., fruit juices, vinegar); neutral/alkaline (pH 6.0-10.0) is ideal for plant protein beverages and sauces—customizable upon request.
6. Certifications & Honors
- FSSC22000
- ISO22000:2018
- ISO9001:2015
- SHC HALAL
- OU KOSHER
- FDA 21CFR 177.2600 Certification
- EU LFGB Food Contact Material Certification
- USP/FCC Compliance Certification
- Invention Patent for Sol-Gel Process
- Food-Grade Liquid Excipient Production License
- Global Liquid Food Additive Export Certification
- Adaptation Certification for Evonik Ludox’s Downstream Clients
Packaging and Shipping
Zhongqi (Guangdong) Silicon Materials Co., Ltd., with over 20 years of experience in the food-grade silica field, is a national high-tech enterprise and a Guangdong Province specialized and innovative enterprise. Trusted by numerous international food giants, it is a leader in high-end food-grade silica. Shandong Zhonglian Chemical Co., Ltd. is Zhongqi's sole officially authorized overseas sales subsidiary.
laboratory
The company has established a world-leading R&D and intelligent manufacturing system, built GMP-standardized workshops, constructed 10,000-ton intelligent production lines, established a national-level testing center equipped with cutting-edge international equipment, and built its own high-standard microbiological testing laboratory. From raw material screening to finished product delivery, the entire process strictly adheres to domestic and international food safety management certifications, achieving simultaneous leadership in both "quality" and "quantity."
Customer Visit
We are committed to silicon dioxide for 20 years, our product is well know in the world and cooperate with some Fortune 500 companies, such as the Nestlé，Yihai Kerry，COFCO，China Resources，Budweiser，Symrise, and so on.
HONOR
In 2021, the company was listed on the Guangdong Stock Exchange, marking the beginning of its international expansion. Today, Zhongqi Silicon Industry, with an open vision, empowers the global food industry's safety system with the power of "Made in China." Going forward, the company will continue to focus on molecular-level safety to ensure peace of mind and, with a global perspective, to create a purer quality of life. Because true strength lies in making invisible protections visible to the world.
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Jinan City, Shandong Province,China
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Guangzhou City, Guangdong Province
