Censil food grade precipitated silica — E551 anti-caking agent & carrier for spices, seasonings, beverages, supplements. FDA 21 CFR, FAMI-QS, Kosher & Halal certified. Alternative to SYLOID. Free sample.
Sensil International supplies FCC-compliant food grade silicon dioxide under the Censil F series. All products meet food safety standards with SiO2>=99%, heavy metals strictly controlled (Pb<=0.0005%, As<=0.0003%). Certified under ISO 22000 (Cert No. 114FSMS2300022) and HALAL (SSPY-201318-32223-R3).
| Parameter | Censil F-50 | Censil F-10 | Censil FH-10 | Censil F-5 | Censil FH-5 |
|---|---|---|---|---|---|
| Appearance | White powder | White powder | White powder | White powder | White powder |
| SiO2 Content % | >=99 | >=99 | >=99 | >=99 | >=99 |
| Loss on Drying (105C, 2h) % | <=6.0 | <=6.0 | <=6.0 | <=6.0 | <=6.0 |
| Ignition Loss (1000C) % | <=5.0 | <=5.0 | <=5.0 | <=5.0 | <=5.0 |
| DBP Absorption (cm3/g) | 2.4-2.8 | 2.4-2.8 | 2.8-3.5 | 2.8-3.2 | 3.3-3.7 |
| Particle Size D50 (um) | 40-150 | 10-15 | 10-15 | 3-7 | 3-7 |
| Apparent Density (kg/m3) | 220-230 | <=160 | <=300 | 90-100 | 75-85 |
| pH (5% suspension) | 5.5-7.5 | 5.5-7.5 | 5.5-7.5 | 5.5-7.5 | 5.5-7.5 |
| Na2SO4 % | <=1.5 | <=1.5 | <=1.5 | <=1.0 | <=1.0 |
| Heavy Metals (Pb) % | <=0.0005 | <=0.0005 | <=0.0005 | <=0.0005 | <=0.0005 |
| As % | <=0.0003 | <=0.0003 | <=0.0003 | <=0.0003 | <=0.0003 |
| Al Content % | <=0.03 | <=0.03 | <=0.03 | <=0.03 | <=0.03 |
| Fe3+ Content % | <=0.015 | <=0.015 | <=0.015 | <=0.015 | <=0.015 |
| Application | Beverages, milk tea, non-dairy creamer | Beverages, milk tea, non-dairy creamer | High-oil compound seasoning | High fineness powder products | Ultra-high fineness powder products |
Censil is a leading food grade precipitated silica manufacturer, producing high-purity E551 silica (Silicon Dioxide) at Longyan Shenghe Chemical Co., Ltd. in Fujian, China. Censil food grade silica meets FDA 21 CFR 182.3392 and 21 CFR 173.340 requirements for direct food contact — serving food processors, flavor companies, and nutritional supplement manufacturers across 30+ countries.
Censil food grade precipitated silica serves as a high-performance silica carrier for food additives, converting liquid ingredients into free-flowing, stable dry powders. As an anti-caking agent for food and flow agent for food powders, Censil silica ensures consistent product quality in powdered drinks, spice blends, seasoning powders, and nutritional supplements. With SiO₂ ≥99%, heavy metal levels below 3 mg/kg, and both Kosher and Halal certification, Censil is the trusted choice for food safety-conscious manufacturers worldwide.
Powdered drink mixes and non-dairy coffee creamers require a high-performance carrier to convert liquid ingredients — including vegetable oils, flavors, and vitamins — into free-flowing, instantized powders. Censil food grade precipitated silica provides superior carrier capacity with SiO₂ ≥99%, making it the preferred E551 silica carrier for powdered beverage manufacturers.
| Food Application | Recommended Censil Grade | Key Benefit | Certification |
|---|---|---|---|
| Milk Tea / Bubble Tea Powder | Censil F-50 | High carrier capacity for milk powder and flavors | FDA, Kosher, Halal |
| Non-Dairy Coffee Creamers | Censil FH-10 / FH-5 | High DBP for vegetable oil carrier, instantized flow | FDA, Kosher, Halal |
| Instant Coffee & Cappuccino Mixes | Censil F-10 / FH-10 | Free-flowing, moisture protection, uniform dispersion | FDA, Kosher, Halal |
| Flavored Milk Powder | Censil F-50 | Carrier for flavors and stabilizers | FDA, Kosher, Halal |
| Protein Powder Supplements | Censil F-10 / F-5 | Anti-caking, free-flow for high-protein formulations | FDA, Kosher, Halal |
| Sports Nutrition Powders | Censil F-5 | Fine particle size for smooth texture, anti-caking | FDA, Kosher, Halal |
Censil FH-series food grade silica (Censil FH-10, Censil FH-5) is specifically engineered for high-oil-content powdered foods. With DBP absorption up to 3.7 cm³/g and bulk density as low as 75 kg/m³, FH grades can carry 50-70% by weight of liquid vegetable oils — making them ideal for non-dairy creamer carriers and fat-based flavor carriers that would otherwise clump or sinter.
Fine spice powders, seasoning blends, and dried herb mixes are highly susceptible to moisture absorption and caking during storage. Censil food grade precipitated silica (E551) serves as an effective anti-caking agent for seasonings, adsorbing surface moisture and maintaining the free-flow characteristics that consumers expect from modern convenience foods.
| Application | Recommended Grade | Dosage | Key Benefit |
|---|---|---|---|
| Salt & Sodium Chloride | Censil F-10 / F-50 | 0.5-2.0% | Prevents moisture-induced caking in fine salt |
| Mixed Spice Blends | Censil F-10 | 0.5-1.5% | Maintains free-flow in multi-component blends |
| Dried Herb Powders | Censil F-5 | 0.3-1.0% | Fine particle size matches herb powder texture |
| Bouillon & Stock Powders | Censil F-10 | 0.5-2.0% | Flow agent for hygroscopic formulations |
| BBQ & Rub Seasonings | Censil F-50 | 0.5-1.5% | Excellent distribution in coarse granular blends |
| Chili & Pepper Powders | Censil F-10 / F-5 | 0.3-1.0% | Prevents caking from natural oil content |
As a flow agent for food powder, Censil food grade silica improves manufacturing efficiency by preventing堵塞 in filling and packaging lines. The Censil F-5 grade — with its ultra-fine particle size (d50 3-7 µm) and high DBP absorption — is particularly effective for fine spice powders and herb blends where the anti-caking agent must blend seamlessly without altering product appearance or texture.
Nutritional supplements, vitamin powders, and dietary supplement formulations require food grade silica that meets stringent purity standards while providing superior anti-caking and carrier performance. Censil food grade precipitated silica (E551) meets all major pharmacopeial standards — including FCC (Food Chemicals Codex), JECFA, and EU food additive specifications — making it the trusted anti-caking agent for health products.
| Application | Recommended Grade | Dosage | Key Benefit |
|---|---|---|---|
| Vitamin Powder Premixes | Censil F-10 / F-5 | 0.5-2.0% | Uniform distribution of fat-soluble vitamins |
| Probiotic Powder Supplements | Censil F-5 | 0.3-1.5% | Moisture protection for live cultures |
| Amino Acid Powders | Censil F-10 | 0.5-2.0% | Free-flow for hygroscopic amino acid blends |
| Fish Oil Softgel Fillers | Censil FH-10 / FH-5 | 0.5-3.0% | Carrier for omega-3 oil powders |
| Meal Replacement Powders | Censil F-10 | 0.5-1.5% | Anti-caking in complex nutrient matrices |
| Botanical Extract Powders | Censil F-5 | 0.3-1.0% | Fine particle size matches botanical powders |
As a silica carrier for nutritional supplements, Censil food grade silica can serve as a carrier for liquid vitamins, omega fatty acids, and botanical extracts — converting them into stable, free-flowing powder formats. With SiO₂ ≥99%, Pb ≤0.003%, As ≤0.0003%, and Na₂SO₄ ≤1.5%, Censil meets the highest purity standards for supplement-grade applications.
Censil offers a comprehensive range of food grade precipitated silica (E551) covering powdered drinks, non-dairy creamers, seasoning powders, and nutritional supplements. All 5 grades are FDA 21 CFR compliant, Kosher & Halal certified, and meet EU food additive specifications.
| Grade | SiO₂ (%) | DBP (cm³/g) | BET (m²/g) | Particle Size d50 (µm) | Bulk Density (kg/m³) | Best Application |
|---|---|---|---|---|---|---|
| Censil F-50 | ≥99 | 2.4-2.8 | — | 40-150 | 220-230 | Powdered drinks, milk tea, coarse premixes |
| Censil F-10 | ≥99 | 2.4-2.8 | — | 10-15 | ≤160 | Seasoning powders, spice blends, vitamin premixes |
| Censil FH-10 | ≥99 | 2.8-3.5 | — | 10-15 | ≤300 | High-oil powdered drinks, non-dairy creamers |
| Censil F-5 | ≥99 | 2.8-3.2 | — | 3-7 | 90-100 | Fine powders, herbs, protein powders, supplements |
| Censil FH-5 | ≥99 | 3.3-3.7 | — | 3-7 | 75-85 | Highest oil carrier, ultra-low density for creamers |
| Property | Specification | Test Method |
|---|---|---|
| SiO₂ Content (dry basis) | ≥99% | FCC / GB/T |
| Loss on Drying (105°C, 2h) | ≤6.0% | FCC |
| Loss on Ignition (1000°C, dry basis) | ≤5.0% | FCC |
| DBP Absorption | 2.4-3.7 cm³/g (grade dependent) | GB/T / FCC |
| Heavy Metals (Pb) | ≤0.003% (≤30 mg/kg) | FCC / JECFA |
| Arsenic (As) | ≤0.0003% (≤3 mg/kg) | FCC / JECFA |
| Lead (Pb) | ≤0.0005% (≤5 mg/kg) | FCC |
| Sodium Sulfate (Na₂SO₄) | ≤1.5% | FCC |
| pH Value (5% suspension) | 5.5-7.5 | FCC / GB/T |
| E Number | E551 — Silicon Dioxide | EU Food Additive |
Food manufacturers evaluating food grade precipitated silica suppliers often compare Censil against leading international brands. Below is a specification-level comparison showing how Censil matches international brands while offering significant cost advantages.
| Property | Censil F-10 | SYLOID® 244 FP | Ziplex® S-37 | Zeofood® Series |
|---|---|---|---|---|
| SiO₂ Content | ≥99% | ≥98% | ≥98% | ≥98% |
| DBP Absorption | 2.4-2.8 cm³/g | 2.0-2.5 cm³/g | 2.5-3.0 cm³/g | 2.0-2.8 cm³/g |
| Particle Size (d50) | 10-15 µm | 6-10 µm | 12-18 µm | 10-20 µm |
| Heavy Metals (Pb) | ≤0.003% | ≤0.005% | ≤0.005% | ≤0.005% |
| FDA 21 CFR Compliant | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| EU E551 Listed | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| Kosher | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| Halal | ✅ Yes | ❌ Varies | ❌ Varies | ✅ Yes |
| Food Grade Grades | 5 grades | Multiple | Multiple | Multiple |
| Cost Index | 100 | 140-160 | 130-155 | 130-150 |
| Lead Time | 2-3 weeks | 6-10 weeks | 4-6 weeks | 4-6 weeks |
Key Finding: Censil food grade precipitated silica matches international brands in SiO₂ purity (≥99% vs ≥98%), heavy metal limits (Pb ≤0.003%), and regulatory compliance — while offering 30-40% cost savings and shorter lead times. For food manufacturers seeking a cost-effective alternative to SYLOID food grade silica or a Ziplex equivalent for powdered drinks, Censil delivers certified food safety quality at China-based pricing.
Censil food grade precipitated silica (E551) meets all major international food safety standards, providing food manufacturers with the regulatory compliance needed to access global markets:
For food manufacturers sourcing food safe silica manufacturer in China, Censil provides the complete regulatory package — including FDA compliance letters, Kosher and Halal certificates, TDS, and SDS — to support food safety documentation requirements.
Food grade precipitated silica (E551, Silicon Dioxide) is used as a carrier for powdered foods, an anti-caking agent for food, and a flow agent for food powders. It converts liquid ingredients into free-flowing dry powders, prevents moisture-induced caking in spices and seasonings, and improves the flow properties of powdered drinks, non-dairy creamers, and nutritional supplements. Censil food grade silica meets FDA 21 CFR and EU E551 specifications for direct food contact.
Yes. Censil food grade precipitated silica is compliant with FDA 21 CFR 182.3392 (GRAS for general food use) and 21 CFR 173.340 (anti-caking agent for human food). It is listed as E551 (Silicon Dioxide) under EU Regulation 1333/2008. Censil also holds Kosher and Halal certifications, making it suitable for food products targeting North American, European, Middle Eastern, and Asian markets.
Yes. Censil food grade precipitated silica is a cost-effective alternative to SYLOID food grade silica and Ziplex food grade silica. With matching specifications — SiO₂ ≥99% (vs ≥98%), Pb ≤0.003% (vs ≤0.005%), and equivalent DBP absorption — Censil can replace imported food grade silica in existing formulations without reformulation. Food manufacturers switching to Censil typically achieve 30-40% cost savings on this ingredient.
The F-series (F-50, F-10, F-5) are standard food grade precipitated silica grades with DBP absorption of 2.4-3.2 cm³/g, suitable for general anti-caking and carrier applications. The FH-series (FH-10, FH-5) are high-absorption variants with DBP up to 3.7 cm³/g and ultra-low bulk density (75-85 kg/m³ for FH-5) — specifically designed for high-oil-content powdered foods such as non-dairy creamers, powdered coffee mixes, and fat-based seasoning carriers.
Choosing the right food grade silica for food applications depends on: (1) particle size — coarser (40-150 µm) for powdered drinks, finer (3-7 µm) for spice and supplement powders; (2) oil content — FH-series for high-oil formulations, F-series for standard powders; (3) bulk density — lower density grades improve instantization in beverage powders. Censil offers 5 grades with free technical support for formulation selection.
Censil food grade precipitated silica holds FDA 21 CFR compliance, EU E551 listing, FCC monograph compliance, JECFA specifications, FAMI-QS certification (CNBJ380053-CN), Kosher certification, and Halal certification. These certifications cover all 5 Censil food grade grades (F-50, F-10, FH-10, F-5, FH-5), providing complete regulatory compliance for global food markets.