Welcome to Shandong Zhonglian Chemical Co., Ltd. Equity Code:880747
Food-Grade Fumed Silica
Classification :
Anti-Caking Silicon Dioxide
Keywords :
Food-Grade Fumed Silica
PRODUCT DETAILS
Food-grade fumed silica (SiO₂, International Code E551) is a nano-scale amorphous powder produced via high-temperature hydrolysis of silicon halides in a hydrogen-oxygen flame. Strictly adhering to FDA, EU 1333/2008, USP, FCC, and JECFA international standards, it benchmarks Evonik Aerosil 200/300 and Grace Syloid FP series. With SiO₂ purity ≥99.8%, aggregate particle size 200-500nm, and specific surface area 100-400m²/g, it offers superior reinforcement, thickening, and thixotropic properties—serving as a core functional additive for high-end powdered foods in the food industry. It is anhydrous with exceptional chemical stability.
1. Technical Specifications
Parameter | Details |
Product Name | Food-Grade Fumed Silica |
Appearance | White nano-scale fluffy powder, no gritty texture |
Particle Size Range | Aggregate particle size 200-500nm (customizable, benchmarking Evonik) |
Silica Content | ≥99.8% |
pH Value | 3.6-7.0 (4% suspension, matching Evonik Aerosil) |
Specific Surface Area | 100-400m²/g (BET method) |
Typical Addition Level | 0.05%-1% (compliant with global food additive limits) |
Shelf Life | 24 months (sealed storage) |
Executive Standards | FDA, EU 1333/2008, USP, FCC, JECFA |
Packaging | 5/10/20kg vacuum-sealed bags |
Lead Time | 7-12 days |
Sample | Free of charge |
Production Capacity | 1,000-ton-class dedicated fumed silica production line |
2. Application Instructions
Benchmarking Evonik and Grace’s core fumed silica products, this high-specific-surface-area, nano-structured additive delivers three core functions:
- Superior Anti-Caking: Adding 0.05%-1% to high-protein powder, plant protein powder, and premium meal replacement powder maintains long-term looseness in environments with humidity above 60% without hard clumping.
- Low-Resistance Flow Enhancement: Reduces internal friction and adhesion between powders, increasing feeding speed of high-precision filling equipment by over 30% to adapt to automated production lines.
- Stable Dispersion: Enables stable dispersion of oil-soluble food additives (e.g., vitamins, plant extracts) in aqueous powder substrates, avoiding stratification and oil separation.
Widely used in high-end functional solid beverages, plant protein powders, pharmaceutical food excipients, and premium baking mixes—all applications comply with JECFA food safety assessment standards.
3. Factory Advantages
Specializing in R&D and production of food-grade fumed silica, our technology and capacity benchmark Evonik and Grace’s Asia-Pacific production bases:
- Hold core patents for high-temperature hydrolysis of silicon halides, equipped with fully enclosed intelligent production lines (dust-free) that meet GMP certification requirements.
- Utilize imported testing equipment (e.g., specific surface area analyzers, nano-particle size analyzers) and establish a dedicated testing system for nano-scale products to ensure consistency with international leading brands.
- Offer customized production capabilities, adjusting specific surface area and particle size to match the full range of Evonik and Grace specifications.
- Certified with ISO22000 food safety management system, with products passing food additive market access tests in major global countries and regions.
4. Shipping & Packaging
- Standard Packaging: 5/10/20kg vacuum-sealed aluminum foil bags with food-grade desiccants.
- Anti-Agglomeration Design: Nitrogen-filled sealed packaging to prevent nano-powder agglomeration during transportation and maintain dispersion.
- Storage & Transportation: Store in a cool, dry, sealed, and light-proof environment (avoid high temperature/humidity); shelf life 24 months; non-hazardous chemical, supporting global air/sea/land transportation.
- Labeling Compliance: Marked with core indicators (specific surface area, particle size, addition limits), providing multi-language labels (Chinese/English/French/German) that comply with international maritime labeling standards.
5. Frequently Asked Questions
Q: How does specific surface area affect application effectiveness?
A: High specific surface area (300-400m²/g) is suitable for high-viscosity powders, while low specific surface area (100-200m²/g) is ideal for general premium powders—available in options matching Evonik Aerosil 200/300 series.
Q: Can it be used in organic food production?
A: Yes. Produced without chemical additives, it complies with EU organic food additive standards, with supporting organic certification documents available.
Q: Why is the addition level much lower than precipitated silica?
A: Nano-scale structure and high specific surface area enhance surface activity—small additions form effective isolation layers to achieve anti-caking and flow-enhancing effects, aligning with the application efficiency of Grace’s similar products.
6. Certifications & Honors
- FSSC22000
- ISO22000:2018
- ISO9001:2015
- SHC HALAL
- OU KOSHER
- FDA 21CFR Certification
- EU 1333/2008 Certification
- USP/FCC Compliance Certification
- JECFA Food Safety Assessment Certification
- Invention Patent for Fumed Process
- Nano-Food Additive Production License
- Organic Food Additive Supporting Certification
- Certification as a Global Supplier of High-End Food Excipients
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
