Food grade silica Type from Evonik

Innovative, Safe and High-Performance: Evonik's Complete Series of Food-Grade Precipitated Silica Solutions

As a world-leading specialty chemicals company, Evonik Industries Group has decades of technical accumulation and process innovation capabilities in the field of precipitated silica. Its product portfolio of food-grade silica, characterized by strict food safety standards, globally recognized compliance certifications, precisely controllable physical and chemical properties, and multi-functional application value, provides customized material solutions for multiple industries such as food, feed, oral care, and food packaging, making it a core functional material supplier in the global food industry chain.

I. Evonik Food-Grade Silica: Global Compliance and Quality Assurance System

Food safety is the core cornerstone of Evonik's food-grade silica products. The entire product series has established a full-process quality control system, passed food-grade compliance certifications in major global markets, and can seamlessly meet the global production and market layout needs of transnational food enterprises.

• International Food Regulatory Compliance: The products fully comply with the relevant food additive standards of FDA 21 CFR in the United States and the food additive purity standards of EU Regulation (EU) 231/2012 (E551). They have completed the registration and filing of food additives and food contact materials in major countries and regions around the world, including China, the European Union, the United States, Japan, South Korea, and Australia.
• Authoritative Quality Management Certification: The production process has passed GMP (Good Manufacturing Practice) and ISO 9001 quality management system certification. Food carrier products have passed HACCP (Hazard Analysis and Critical Control Points) food safety management system certification, and feed-specific products have passed FAMI-QS (European Quality System for Feed Additives and Premixes) certification.
• Religious and Sustainable Certifications: The entire series of food-grade products have obtained Kosher and Halal certifications. Many products comply with the COSMOS natural cosmetics standard, which can meet the compliance needs of segmented tracks such as organic food and natural daily chemicals.
• Extreme Purity Control: All products are artificially synthesized amorphous silica with high chemical inertness. They do not react with food active ingredients, are odorless and tasteless, and do not change the original flavor, color, or nutrition of food. At the same time, strict limit control is implemented on impurities such as heavy metals, microorganisms, and sulfates, fully meeting the safety requirements of food-grade materials.

II. Evonik's Complete Product Portfolio of Food-Grade Silica

Based on different application scenarios in the food and related industries, Evonik has created three core series of food-grade silica products, covering the full range of needs from anti-caking and flow aids, high adsorption carriers, dental-specific materials to environmentally friendly abrasive particles. Each series of products has clear core performance and application positioning, enabling precise formula adaptation.

(I) SIPERNAT® Series: Core Series of Multi-Functional Food-Grade Precipitated Silica

The SIPERNAT® series is Evonik's flagship product line of precipitated silica. Its food-grade models cover the full range of functions from basic flow aids to ultra-high load carriers, making it the most widely used product series in the food processing industry.

1. Basic General-Purpose Products

2. SIPERNAT® 22 S: As Evonik's recommended basic carrier-type food-grade silica, it has both high adsorption capacity and excellent fluidity, with a DOA adsorption capacity of 235 ml/100g, a specific surface area of 180 m²/g, and a median particle size of 14 μm. Its core positioning is to convert various food-grade liquids into free-flowing powders, and it can also be used as an anti-caking agent and flow aid for powdered food, suitable for multiple fields such as food, feed, and daily chemicals. The shelf life is 24 months in unopened condition.

3. SIPERNAT® 22 SF: A hydrophilic ground product optimized specifically for the food and feed industries, with a BET specific surface area of 160-200 m²/g, a DOA adsorption capacity of 220-250 ml/100g, a median particle size of 12-16 μm, and a moisture content of less than 5.0%. It complies with Chinese food additive standards, and its core functions are anti-caking agent, free-flow aid, and spray drying processing aid, making it a special functional material for powdered food processing.

4. SIPERNAT® 26: A special engineered precipitated silica with an oil absorption of 215 ml/100g, a BET specific surface area of 150-200 m²/g, and a median particle size of 7 μm. It is compatible with both water and oil systems, and has high-cost-performance matting, low-shear thickening, and powdered anti-caking functions. It is suitable for scenarios such as food coating, edible coatings, and powdered food processing, with a shelf life of 24 months.

5. SIPERNAT® 28: A food-grade product with dual functions of regulator and carrier, with an oil absorption of 220 ml/100g, a specific surface area of 250 m²/g, a median particle size of 3.6 μm, and a typical loading capacity of about 66%. It can significantly improve the fluidity and storage stability of powdered food, and at the same time provide rheological optimization for food-grade liquid systems, suitable for multiple scenarios such as powdered food, feed, and food coating.

6. High Adsorption Carrier Products

7. SIPERNAT® 50: A flagship carrier product with ultra-high adsorption capacity, with a DOA adsorption capacity of 290 ml/100g, a specific surface area of 500 m²/g, and a median particle size of 50 μm. It has passed HACCP and FAMI-QS certifications, and can convert liquid food active substances into powders with a maximum loading concentration of up to 75%. It can also be used as a grinding aid for fatty foods, widely used in fields such as food additives, feed additives, and nutritional fortifiers.

8. SIPERNAT® 50 S: Optimized particle size distribution based on ultra-high adsorption capacity, with a DOA adsorption capacity of 280 ml/100g, a specific surface area of 500 m²/g, and a median particle size of 18 μm. It can significantly improve the fluidity and shelf life of easily caked powdered foods with high fat content, and is also suitable for the carrier needs of food-grade wettable powders and water-dispersible granules that require fine particle size.

9. SIPERNAT® 680: A food-grade silica with high adsorption capacity, with a DOA adsorption capacity of 250 ml/100g, a specific surface area of 175 m²/g, and a median particle size of 50 μm. Its core use is as a flow agent and anti-caking agent for various food and feed scenarios, and it can also be used as a carrier for food-grade solid preparations to avoid damage to heat-sensitive active ingredients during the grinding process.

10. Special Functional Products

11. SIPERNAT® 22 PC / 2200 PC: Food-grade environmentally friendly abrasive particle products with median particle sizes of 120 μm and 320 μm respectively. They have passed HACCP/FAMI-QS certifications, and their microbial indicators comply with European Pharmacopoeia standards. They can completely replace non-degradable polyethylene microbeads and are used in food-grade cleaning products, edible abrasive formulations, and oral care products. At the same time, their sponge-like structure can efficiently load food-grade liquid active ingredients, achieving dual value of functionality and environmental protection.

12. SIPERNAT® 310: Ultra-fine ground food-grade silica with a BET specific surface area of 700 m²/g, a DOA adsorption capacity of 265 ml/100g, and a median particle size of 8.5 μm. It has completed compliance registration of food contact materials in many countries around the world. Its core use is as an anti-blocking agent for polyolefin and PVC materials used in food packaging, and it can also be used in segmented scenarios such as food inkjet paper coating pigments and food-grade catalyst carriers.

13. SIPERNAT® 823 / 823 A: Food-grade precipitated sodium aluminosilicate, which has passed FDA 21 CFR 182.2727 certification. It can significantly improve the fluidity of powdered foods such as salt, sugar, condiments, and milk powder, improve production efficiency, reduce equipment blockage and packaging measurement errors, and is a special material for anti-caking treatment of powdered food.

(II) ZEOFREE® Series: Special Series for High Adsorption Food-Grade Carriers

The ZEOFREE® series is a food-grade high-adsorption silica series specially developed by Evonik for liquid-to-powder conversion scenarios. The entire series of products have passed global food-grade compliance certifications, focusing on efficient liquid adsorption and powder conversion functions, suitable for the active ingredient loading needs of the food and feed industries.

1. ZEOFREE® 5170: The core basic product of the series, with a median particle size of 250 μm, a linseed oil adsorption capacity of 160 ml/100g, a loading capacity of 57%, and a specific surface area of 160 m²/g. It can efficiently adsorb various food-grade liquids and convert them into free-flowing powders, which are odorless and tasteless, do not change the original flavor of raw materials, and can safely handle food-grade acidic and corrosive components. The shelf life is as long as 36 months in unopened condition.

2. ZEOFREE® 5162: A high-flow optimized product with a median particle size of 16 μm, a linseed oil adsorption capacity of 220 ml/100g, and a loading capacity of 68%. It can significantly optimize the fluidity of food powder, improve production efficiency, reduce equipment downtime and maintenance time, and improve product batch consistency and packaging accuracy. It is suitable for scenarios such as anti-caking of powdered food and carrier of nutritional fortifiers, with a shelf life of 36 months.

3. ZEOFREE® 110 SD: A food-grade product specially customized for the animal feed and nutrition field, with a median particle size of 20 μm, a linseed oil adsorption capacity of 200 ml/100g, and a loading capacity of 68%. It has passed the full series of feed and food compliance certifications. It can convert feed-grade oils, probiotics, vitamins, amino acids and other liquid nutritional components into free-flowing powders, realizing precise measurement, reducing material loss, and improving feed production efficiency and the stability of nutritional components, with a shelf life of 36 months.

(III) SIDENT® Series: Special Series for Dental and Food-Grade Oral Care

The SIDENT® series is a high-purity silica product specially developed by Evonik for dental and food-grade oral care scenarios. The entire series complies with the USP/NF and European Pharmacopoeia standards for "dental silica" and is a core functional material for high-end toothpaste and oral care products around the world.

• SIDENT® 8: With a specific surface area of 60 m²/g, a DOA adsorption capacity of 120 ml/100g, a median particle size of 10 μm, and a silica content of ≥98%, it is suitable for the abrasive and cleaning system needs of general-purpose food-grade toothpaste.
• SIDENT® 9: A special model with low friction value, with a specific surface area of 45 m²/g, a DOA adsorption capacity of 90 ml/100g, and a median particle size of 9.0 μm. It is specially designed for food-grade toothpaste and oral care products with sensitive tooth formulas.
• SIDENT® 10: An ultra-fine particle size model with a specific surface area of 75 m²/g, a DOA adsorption capacity of 75 ml/100g, and a median particle size of 7.5 μm. It is used for the thickening and fine friction system of high-end food-grade oral care products.
• SIDENT® 22 S: A high-adsorption multi-functional model with a specific surface area of 180 m²/g, a DOA adsorption capacity of 240 ml/100g, and a median particle size of 12.0 μm. It can be used as a carrier for flavors and pharmaceutical active ingredients in toothpaste, and also has thickening and rheological optimization functions, suitable for all types of oral care products.

III. Core Competitive Advantages of Evonik Food-Grade Silica

1. Precisely Controllable Customized Performance

Relying on advanced precipitation technology and patented technology, Evonik can precisely control the core physical and chemical indicators of products such as particle size, specific surface area, adsorption capacity, and pore structure, and achieve performance customization for different application scenarios. From 7.5 μm ultra-fine oral care-grade products to 320 μm large-particle-size abrasive particles; from 75 ml/100g low-adsorption anti-caking agents to 290 ml/100g ultra-high-adsorption carriers, it achieves full-scenario material adaptation in the food industry.

1. Multi-Functional Integrated Application Value

Evonik's food-grade silica can simultaneously achieve multiple functions in formulas such as anti-caking, flow assistance, active ingredient carrier, thickening, rheological adjustment, and abrasive cleaning, which greatly simplifies the formula system of food and daily chemical products, reduces production complexity, reduces the types of raw materials and inventory costs, and at the same time improves production efficiency and reduces material loss and production downtime.

1. Global Compliance and Full-Chain Technical Services

The entire series of products have completed food-grade compliance registration in major global markets, which can help customers quickly achieve global market launch of their products. At the same time, Evonik has established professional technical and sales teams in Europe, North America, Asia-Pacific and other regions, which can provide customers with localized full-chain technical services such as formula development, process optimization, and compliance consulting, solving various pain points of customers in material application.

1. Sustainability and Environmental Protection Characteristics

The products are inorganic amorphous silica, which are biodegradable and have no bioaccumulation risk. They are core environmentally friendly materials to replace non-degradable plastic microbeads, fully complying with global microbead bans and sustainable development regulatory requirements. The production process follows green chemical standards and has passed ISO 14001 environmental management system certification, achieving the whole life cycle of low-carbon environmental protection.

IV. Core Application Scenarios of Evonik Food-Grade Silica

1. Powdered Food and Condiment Processing

As an anti-caking agent and flow aid, it is widely used in powdered products such as milk powder, protein powder, salt, sugar, spices, condiments, and food additives. It solves problems such as caking during powder storage, poor fluidity, and inaccurate packaging measurement, extends the product shelf life, and improves production efficiency.

1. Food Active Ingredients and Nutritional Fortifier Carriers

With ultra-high adsorption capacity, it converts food-grade oils, flavors and fragrances, vitamins, plant extracts, probiotics, enzymes and other liquid active ingredients into free-flowing powders, improves the storage stability of active ingredients, realizes precise measurement and uniform dispersion in food systems, and is a core carrier material for food nutrition fortification and flavor regulation.

1. Oral Care and Dental Applications

The SIDENT® series, which meets pharmacopoeia-level food-grade standards, is used as an abrasive, thickener, and active ingredient carrier in toothpaste, providing mild and efficient cleaning effects. It is suitable for all types of oral care products such as regular toothpaste, sensitive tooth-specific toothpaste, children's toothpaste, and mouthwash. It is safe to eat and complies with global dental materials and food contact standards.

1. Feed and Animal Nutrition Field

The special models that have passed FAMI-QS certification are used as anti-caking agents and flow aids for feed additives, as well as carriers for feed-grade oils, vitamins, amino acids, and veterinary drug active ingredients. They improve feed production efficiency, ensure the uniform dispersion and stability of nutritional components, and realize precise feeding and efficient absorption of animal nutrition.

1. Food Coating, Packaging and Environmental Daily Chemicals

It is used in edible food coatings and candy coatings to provide rheological adjustment and anti-adhesion effects, improving the appearance and storage stability of food. As an anti-blocking agent for food-grade plastic packaging, it improves film processing performance and user experience. At the same time, as an environmentally friendly abrasive particle, it replaces plastic microbeads for daily chemical products such as body wash, facial cleanser, and lip scrub, meeting the dual requirements of food-grade safety and environmental protection.

V. Storage, Handling and Safety Specifications

Evonik's food-grade silica products are highly chemically inert and stable, but due to their high specific surface area, they are prone to absorb moisture and volatile organic compounds in the environment. Therefore, they should be stored in the original sealed packaging in a dry, cool, and ventilated environment, away from volatile organic substances and food pollution sources.

• The shelf life of unopened products is usually 24 months, and some products in the ZEOFREE® series can have a shelf life of up to 36 months. For products beyond the shelf life, they can only be used after passing the moisture content test.
• The product is in powder form. During operation, dust protection should be done to avoid inhaling dust, and compliant protective masks and gloves should be worn. For detailed safety information, refer to the corresponding product's Safety Data Sheet (SDS). Evonik will provide the SDS document with the first batch of goods and update it continuously.
• All products have undergone strict quality inspection before leaving the factory. Customers still need to perform incoming inspection and testing obligations after receiving the goods. The application performance of the product in specific formulas needs to be tested and verified by qualified professionals to ensure adaptation to specific application scenarios.

Conclusion

From basic food powder processing to high-end active ingredient encapsulation, from mass food production to special dietary nutrition, Evonik has always taken food safety as the core and technological innovation as the driving force, constantly expanding the application boundaries of food-grade silica. With a complete product portfolio, globally recognized compliance system, customized technical services, and a sustainable development concept, Evonik's food-grade silica is becoming an indispensable core material in the global food and related industrial chains, working with partners to jointly promote the safe, efficient and high-quality development of the food industry.

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