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Food-Grade Additive Silica Dioxide: Detailed Specification
1. Product Description
Food-grade Silicon Dioxide (SiO₂) is a safe and compliant food additive (China National Standard GB 2760 Code: 02.004; International Numbering System for Food Additives: E551). It is produced via the precipitation process and strictly adheres to standards including GB 25576-2020 (China), USP (United States Pharmacopeia), and FCC (Food Chemicals Codex).
Zhongqi’s food-grade silica (as an anti-caking agent) is based on a high purity of over 96%. Leveraging molecular-level processing, it delivers exceptional performance in anti-caking, flow improvement, and adsorption.
2. Technical Parameters Table
Parameter | Details |
Product Name | Food-Grade Additive Silicon Dioxide |
Appearance | White fluffy powder |
Particle Size Range | 2–250μm (customizable) |
Silica Content | ≥96% |
pH Value | 6.0–8.0 (10% suspension) |
Loss on Drying | ≤8.0% (at 105℃ for 2 hours) |
Typical Addition Level | 0.1%–2% |
Anti-Caking Validity | 24 months |
Compliance Standards | GB 25576, USP, FCC, FDA |
Packaging | 10kg/15kg/20kg woven bags |
Lead Time | 5–10 days |
Samples | Free of charge |
Production Capacity | 10,000-ton annual output (intelligent production line) |
3. Application Description
Through microstructural design, Zhongqi’s silica (as an anti-caking agent) achieves three core functions:
- Anti-Caking: Adding 0.1%–2% of the product to powdered foods (e.g., table salt, powdered sugar) completely prevents hard clumping during storage, keeping the product in a loose state.
- Flow Optimization: Significantly reduces friction between powder particles, controlling the weight error of products (e.g., milk powder, cocoa powder) within ±2% during filling.
- Uniform Dispersion: Helps micro-additives disperse evenly in food bases, avoiding localized high concentrations.
Wide Application Scope
It is widely used in the following food categories (with addition levels strictly complying with international standards):
- Solid beverages
- Flavors and fragrances
- Seasonings (table salt, chicken essence)
- Dairy products (milk powder, whey protein)
- Baking ingredients (flour, pre-mixed powder)
- Cocoa products (fats, powders, pastes, sauces, fillings made with cocoa as the main raw material)
- Vegetable fat powder (creamer)
- Dehydrated egg products (e.g., egg protein powder, egg yolk powder, egg white flakes)
- Other sweeteners (limited to powdered sugar)
- Other dairy products (limited to milk tablets, e.g., whey powder or protein powder-based milk tablets)
- Whipped cream powder and its products
4. Factory Advantages
Zhongqi Guangdong Silicon Materials Co., Ltd. is a national high-tech enterprise and a provincial-level "Specialized, Refined, Differential, and Innovative" enterprise. With over 20 years of experience in the industry, the company holds 17 patents and operates a GMP-standardized production base.
Key strengths include:
- Equipped with high-end testing equipment (e.g., atomic fluorescence spectrometers, laser particle size analyzers).
- Implements a 26-step full inspection process (from raw materials to finished products).
- Certified to the ISO 22000 Food Safety Management System.
5. Shipping & Packaging
- Standard Packaging: 10kg/15kg/20kg woven bags.
- Moisture-Proof Design:
- Option 1: Composite film valve bags + outer PE layer;
- Option 2: PE inner bags + plastic woven bags.
Both designs provide strict protection to prevent moisture intrusion.
- Storage & Transportation Requirements:
- Store in a cool, dry environment (shelf life: 24 months);
- Classified as a non-hazardous material, supporting global sea/air shipping.
- Labeling Standards: Each package is labeled with mandatory information (e.g., "Food Additive," "Addition Limit," "Production License Number") or customized logos as per customer requirements.
6. Frequently Asked Questions (FAQs)
Q: Will adding silica (as an anti-caking agent) affect food texture?
A: No. The product has a small particle size and an extremely low addition level (≤2%), which allows it to disperse completely in the mouth without creating a gritty sensation.
Q: Is the product compliant with Halal/Kosher food requirements?
A: Yes. It has obtained HALAL and OU KOSHER certifications, and no animal-derived raw materials are used in the production process.
Q: How to determine the optimal addition ratio?
A: Our technical team can provide guidance based on product characteristics and extensive downstream application experience. We can also conduct accelerated caking tests to identify the optimal addition level and optimize formulas.
7. Certifications & Honors
- Food Additive Production License
- Feed Additive Production License
- National High-Tech Enterprise Certification
- Guangzhou Municipal "Specialized, Refined, Differential, and Innovative" Enterprise Certification
- 17 Patents (issued by the National Intellectual Property Administration of China)
- ISO 22000:2018
- ISO 9001:2015
- SHC HALAL Certification
- OU KOSHER Certification
- FSSC 22000 Certification
- SEDEX Certification
- FDA Registration
- FAMI-QS Certification
Model selection:
1. According to application fields
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