Food Grade Fumed Silica

This Food Grade Fumed Silica (also known as Pyrogenic Silica) is a high-performance nano-scale food additive produced via premium fumed (pyrogenic) process.

Classification :

Anti-Caking Silicon Dioxide

Keywords :

Food Grade Fumed Silica

PRODUCT DETAILS

This Food Grade Fumed Silica (also known as Pyrogenic Silica) is a high-performance nano-scale food additive produced via premium fumed (pyrogenic) process. Using high-purity siloxane as raw material, it is synthesized through high-temperature hydrolysis process, resulting in 100% amorphous nano-scale silicon dioxide with a minimum purity of 99.8%. With nano-scale primary particle size, it features ultra-high specific surface area, and delivers outstanding dispersibility, thickening performance, thixotropy, anti-caking and flow aid properties. The product is odorless, tasteless, non-toxic, and fully compliant with global food standards including GB 2760, FDA, EU 1333/2008. It is ideally suited for special processing scenarios such as high-end liquid food, paste food, and ultra-fine powdered food, serving as the benchmark product for high-performance food additives.

1. Technical Specifications

Parameter

Detailed Specifications

Product Name

Food Grade Fumed Silica

Appearance

White ultra-fluffy nano-scale powder, completely free of impurities

Crystal Structure

100% amorphous structure, no crystalline silicon residue

Primary Particle Size

7-40nm (nano-scale, customizable)

Aggregate Particle Size

2-20μm

Silicon Dioxide (SiO₂) Content

≥99.8%

pH Value

3.8-4.5 (Hydrophilic Grade) / 6.0-7.5 (Hydrophobic Grade)

Specific Surface Area

100-400m²/g (customizable)

Typical Dosage

0.05%-1.5% (within high-end application limits)

Packaging

5/10kg high-end vacuum aluminum foil bag (customizable)

Lead Time

7-15 days (expedited service available for customized orders)

Compliance Standards

GB 2760, FDA, EU 1333/2008, USP

2. Application Scenarios

Relying on the nano-scale characteristics of the fumed process, this product has multiple functions including excellent dispersion, thickening, thixotropy, anti-caking, flow aid and anti-settling properties, and is fully compatible with various high-end and special food processing scenarios:

  1. Liquid & Paste Food Products: Jam, salad dressing, ketchup, cream, chocolate, beverage syrups. It exerts thickening, thixotropic and anti-settling effects, improves the stability of the product system, prevents delamination, and optimizes taste and spreadability.
  1. High-End Ultra-Fine Powdered Foods: Infant supplementary food powder, nano-scale nutrition powder, high-end health supplement powder, tableted foods. It delivers ultra-fine flow aid, anti-caking and dispersion effects, ensures ultra-uniform dispersion of the powder, and improves tablet forming rate and nutrient absorption rate.
  1. Special Food Processing: Oil-based foods, baked goods, confectionery, chewing gum. It plays the role of anti-adhesion, anti-caking and structure optimization, improves processability, extends product shelf life, and adapts to the production needs of high-end special foods.

3. Manufacturing Advantages

We specialize in the R&D and production of food grade fumed silica, with advanced fumed production technology and high-end testing system, creating world-leading high-performance nano-scale food additive products:

  1. Adopting premium fumed production process, we can precisely control the particle size, specific surface area, and hydrophilic/hydrophobic surface properties of the product. With a minimum purity of 99.8% and controllable nano-scale particle size, the product performance is benchmarked against global first-tier brands, enabling seamless replacement.
  1. Class 10000 clean GMP production workshop with fully enclosed full-process production to eliminate contamination risks. Equipped with imported high-end testing equipment, we can achieve precise detection of nano-scale particle size, specific surface area and surface characteristics, and provide full-item special test reports for each batch of products.
  1. Professional application R&D team can customize hydrophilic/hydrophobic products according to the customer's food system and processing technology, optimize product parameters and addition formulas, and provide one-on-one technical support and application debugging services.
  1. With complete global compliance certifications, it can meet the market access requirements of high-end food markets around the world including Europe, America and Southeast Asia, and provide one-stop export supporting services to help customers build high-end food products.

4. Packaging, Storage & Transportation

  • Standard Packaging: 5/10kg high-end food-grade vacuum aluminum foil bag, nitrogen-filled sealed packaging with built-in food-grade desiccant, moisture-proof and anti-pollution, to ensure stable performance of the nano-scale powder.
  • Storage & Transportation Requirements: Store in a cool, dry, sealed environment away from light, with constant temperature control throughout the whole process. Prevent extrusion, keep away from high-temperature and high-humidity environments, and strictly prohibit mixed storage with toxic, harmful, or odorous items. This product is non-hazardous chemical, and supports global compliant transportation.
  • Labeling Specifications: Clear marking of fumed process, hydrophilic/hydrophobic type, nano-scale particle size, specific surface area, compliance standards, and compliance certification information. Multi-language labels can be customized, in full compliance with global high-end food packaging specifications.

5. Frequently Asked Questions (FAQ)

Q: What is the core difference between fumed silica and precipitated silica?

A: Fumed silica has nano-scale primary particle size and higher specific surface area, with excellent thickening, thixotropy and anti-settling properties, which far exceed precipitated silica products in liquid and paste food systems. Meanwhile, the ultra-fine powder has better flow aid and dispersion effects in high-end powdered foods, and is suitable for special and high-end food processing scenarios.

Q: Is there a difference between hydrophilic and hydrophobic grades, and what scenarios are they suitable for?

A: Yes. We can provide both hydrophilic and hydrophobic food grade fumed silica. Hydrophilic grade is suitable for water-based systems such as beverages, jams and powdered foods; hydrophobic grade is suitable for oil and high-oil systems such as chocolate, cream and fried foods. Customers can choose according to their product system.

Q: Can this product replace imported fumed silica brands?

A: Yes. The parameters and performance of this product are fully benchmarked against food grade fumed silica from global first-tier brands such as Evonik and Wacker, enabling seamless replacement without adjusting the production process. Meanwhile, it has higher cost performance, and free samples are available for comparative testing.

6. System Certifications & Qualifications

  • ISO 22000:2018 Food Safety Management System Certification
  • ISO 9001:2015 Quality Management System Certification
  • FDA and EU 1333/2008 Compliance Certification
  • HALAL Certification
  • KOSHER Certification
  • Food Additive Production License
  • Import and Export Operation License

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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.

Zhongqi

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."

Zhongqi

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.

Zhongqi

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.

Zhongqi
Zhongqi

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