Feature
Ultra-white, speck-free silicon dioxide for appearance-critical applications
1. The Problem We Solve
Black specks in white silica powder are one of the most costly quality failures in food, pharma and cosmetics. A single visible black particle in a white tablet, clear toothpaste gel, milk powder or cosmetic cream can trigger full-batch rejection, customer claims and brand damage. Our speck-free silica is built from raw material selection through final inspection to keep black specks out of your product — not filtered out at the customer's line.
2. Certification & Compliance
Manufactured under GMP on dedicated food / pharma grade lines. One range supports:
- China GB 25576-2020, GB 2760, GB 4806 series
- U.S. FDA 21 CFR 172.480, FCC, USP
- EU Regulation 1333/2008, EU 10/2011, EC 1935/2004
- Japan JFCC and Food Sanitation Act
- ISO 9001, ISO 22000, FSSC 22000
- HALAL, KOSHER, FAMI-QS, SEDEX
CoA, migration reports and multi-language customs documents supplied on request.
3. Three Cleanliness Tiers to Match Your Risk
- Standard clean grade— general food anti-caking, seasoning and industrial use. Visual inspection per batch.
- Low-speck grade — for milk powder, protein powder, sugar and white powders where dark particles are highly visible. Tighter control on raw material, magnetic separation and screen analysis.
- Zero-speck / ultra-white grade — for white pharmaceutical tablets, clear toothpaste gels, cosmetics and transparent plastics. Multiple visual passes, color sorting, magnetic separation, and speck count per batch reported on CoA. Whiteness ≥ 96%, SiO₂ ≥ 99%.
4. How We Keep Black Specks Out
- Purified raw materials— low-impurity sodium silicate and controlled reaction chemistry, avoiding the carbonized particles and mineral inclusions that form dark spots.
- Uniform spray drying— temperature and atomization tightly controlled to prevent local overheating and charring inside the dryer.
- Food-contact equipment — stainless-steel process lines, no wearing metal parts in product zone, no carbon steel contacts that can shed rust or oxide particles.
- Multi-stage purification— de-ironing magnetic separation, fine screening, air classification and, on premium grades, optical color sorting that physically rejects dark particles.
- Dust-free GMP workshop— dedicated line, no cross-contamination with industrial grades.
- Per-batch speck inspection— screen residue, iron content, whiteness and visual speck count checked and reported. Every batch traceable back to raw material.
5. Quality Advantage
- Ultra-white: whiteness ≥ 95%, premium tier ≥ 98%.
- Ultra-pure: SiO₂ from 96% up to 99.8%; lead, arsenic, iron and heavy metals controlled well below national limits.
- Non-yellowing: low-iron purification avoids discoloration reactions in baked, sugared or long-shelf-life products.
- Chemically inert, odorless and tasteless — no impact on food, drug or cosmetic performance.
- Consistent flow, particle size and adsorption from batch to batch.
6. Applications Where Specks Are Zero-Tolerance
- White pharmaceutical tablets, capsules and powder sachets
- Clear / white toothpaste gels and oral-care products
- Milk powder, protein powder, powdered sugar, coffee creamer and white food powders
- Face creams, masks and color cosmetics that demand a clean white base
- Transparent plastics, masterbatches and food-contact polymer fillers
- High-end seasonings and baking premixes where visual quality drives shelf appeal
7. Customization & Service
- Tailor particle size (2–300 μm), purity, moisture, whiteness, adsorption and speck tolerance to your spec.
- Packaging from 1 kg retail bags to 25 kg bags and jumbo bags; multilingual labels and customer branding available.
- 3–10 days lead time for stocked items, 10–20 days for custom orders.
- EXW, FOB, CIF, DDP supported.
- Free samples with CoA and speck-count data; dedicated engineer for formulation and regulatory support.
> If you have had black-speck complaints before, send us your defect photos and your accepted speck count per gram — we will match a grade and send a sample with the speck report attached.
Lab Silica Powder Sample
Silica Powder
Silica Powder on Test Paper
Silica Free of Black Specks
Silica Free of Black Specks
Silica Free of Black Specks
Silica Free of Black Specks
Zhonglian Chemical Food-Grade Silica Series — Core Selling Points & Advantages
1. Company Strength & Industry Position
Shandong Zhonglian Chemical is a subsidiary of Zhongqi (Guangdong) Silicon Materials (stock code: 880747), a National High-Tech Enterprise and Guangdong "Specialized & Innovative" enterprise with 20+ years of silica expertise. GMP-certified production base in Guangdong, annual capacity 10,000+ tons, 17 patents, and a technical team averaging 20+ years of industry experience.
2. Certification & Compliance — Broadest Qualification Matrix in the Industry
Certifications cover virtually every major food market worldwide:
Category Certifications / Standards
China GB 25576-2020, GB 2760, Food & Feed Additive Production Licenses
U.S. FDA 21 CFR 172.480, FCC, USP
EU EU 1333/2008, EU 10/2011, EC 1935/2004
Japan JFCC, Japan Food Sanitation Act
Systems ISO 9001:2015, ISO 22000:2018, FSSC 22000
Feed FAMI-QS
Religious SHC HALAL, OU KOSHER
Social SEDEX
Key Value: One product range satisfies market access across 50+ countries. No additional compliance testing needed. Multi-language reports, certificates, and customs documents supported.
3. Complete Product Portfolio — Six Segments
•General-Purpose: SiO₂ ≥ 96%, anti-caking / flow aid / dispersion, cost-effective for salt, sugar, bouillon, solid beverages
•Functional Enhanced: Anti-caking (≥97%), Glidant (angle of repose ≤28°, +60–80% flow, ±1.5% filling accuracy), High-Temp (200–300°C), Low-Iron Non-Yellowing (Fe ≤5 ppm), Heavy-Metal-Free (≥99.0%, ≤0.01 mg/kg)
•Application-Specific: Bakery grade (≤200°C, no grit), Seasoning/Spice grade (odorless, flavor-preserving), Beverage Powder grade (rapid dissolution, no sediment)
•Edible Oil Adsorbent: Phosphorus & gum removal, decolorization & purification, frying oil restoration, animal oil treatment, beer filtration
•Export-Grade: Multi-market universal (FDA/EU/GB/HALAL/KOSHER/JFCC), EU type, U.S. type (FCC/USP), Japan type, LCL type (50 kg MOQ)
•Premium Custom: Ultra-high purity (≥99.8%), International brand replacement (Evonik/Grace, 30–50% cost saving), Amorphous, Fully customizable (particle size 2–300 μm, moisture 0.5–7.0%, whiteness ≥98%, adsorption, pH resistance)
4. Quality & Technological Advantages
•Ultra-high purity, ultra-low impurities: SiO₂ ≥96%–≥99.8%; internal heavy-metal limits 50–70% stricter than national standards (Fe ≤5 ppm vs. 30 ppm national limit; Pb ≤0.1 mg/kg; As ≤1 ppm)
•Proprietary anti-yellowing technology: Low-iron purification severs the yellowing reaction chain between iron ions and ethyl maltol at the source. Zero discoloration, zero fading, zero performance degradation under baking, sugar boiling, spray drying, and long-term storage
•End-to-end quality control: GMP dust-free workshops, dedicated food-grade lines, 26-step full-lifecycle inspection, atomic fluorescence spectrometers / laser particle analyzers / HPLC, full batch traceability, zero allergen & cross-contamination risk
•Superior application performance: +40% flowability vs. standard commercial grades; 24-month anti-caking efficacy; chemically inert; odorless, tasteless, non-disruptive to food flavor and color
5. Comprehensive Application Coverage
•Powdered foods: salt, powdered sugar, chicken bouillon, milk powder, coffee powder, protein powder, meal replacement powder, baking premixes, cocoa powder, dehydrated vegetables
•Edible oil refining: phosphorus removal, degumming, decolorization of vegetable oils, animal oils, frying oils
•Beverages: solid beverages, beer filtration
•Pet food & feed: FAMI-QS certified, meeting global pet food ingredient standards
•Nutritional & dietary supplements: paired with high-purity, heavy-metal-free grades
6. Customization & Service Capabilities
•Full customization: particle size, purity, moisture, whiteness, adsorption performance; packaging from 1 kg retail bags to jumbo bags; multilingual labels and logo printing
•Supply chain assurance: 10,000+ tons/year, scalable; 3–10 day lead time for stocked items, 10–20 days for custom; supports EXW, FOB, CIF, DDP; 10/15/20 kg & jumbo bag options
•Technical support: free samples with COA and certificates; dedicated engineer with 2-hour response; lab simulation & formulation optimization; strategic customers enjoy priority supply, joint R&D, flexible pricing, regulatory updates
Zhonglian Chemical Food-Grade Silica Series — Core Selling Points & Advantages
1. Company Strength & Industry Position
Shandong Zhonglian Chemical is a subsidiary of Zhongqi (Guangdong) Silicon Materials (stock code: 880747), a National High-Tech Enterprise and Guangdong "Specialized & Innovative" enterprise with 20+ years of silica expertise. GMP-certified production base in Guangdong, annual capacity 10,000+ tons, 17 patents, and a technical team averaging 20+ years of industry experience.
2. Certification & Compliance — Broadest Qualification Matrix in the Industry
Certifications cover virtually every major food market worldwide:
Category Certifications / Standards
China GB 25576-2020, GB 2760, Food & Feed Additive Production Licenses
U.S. FDA 21 CFR 172.480, FCC, USP
EU EU 1333/2008, EU 10/2011, EC 1935/2004
Japan JFCC, Japan Food Sanitation Act
Systems ISO 9001:2015, ISO 22000:2018, FSSC 22000
Feed FAMI-QS
Religious SHC HALAL, OU KOSHER
Social SEDEX
Key Value: One product range satisfies market access across 50+ countries. No additional compliance testing needed. Multi-language reports, certificates, and customs documents supported.
3. Complete Product Portfolio — Six Segments
•General-Purpose: SiO₂ ≥ 96%, anti-caking / flow aid / dispersion, cost-effective for salt, sugar, bouillon, solid beverages
•Functional Enhanced: Anti-caking (≥97%), Glidant (angle of repose ≤28°, +60–80% flow, ±1.5% filling accuracy), High-Temp (200–300°C), Low-Iron Non-Yellowing (Fe ≤5 ppm), Heavy-Metal-Free (≥99.0%, ≤0.01 mg/kg)
•Application-Specific: Bakery grade (≤200°C, no grit), Seasoning/Spice grade (odorless, flavor-preserving), Beverage Powder grade (rapid dissolution, no sediment)
•Edible Oil Adsorbent: Phosphorus & gum removal, decolorization & purification, frying oil restoration, animal oil treatment, beer filtration
•Export-Grade: Multi-market universal (FDA/EU/GB/HALAL/KOSHER/JFCC), EU type, U.S. type (FCC/USP), Japan type, LCL type (50 kg MOQ)
•Premium Custom: Ultra-high purity (≥99.8%), International brand replacement (Evonik/Grace, 30–50% cost saving), Amorphous, Fully customizable (particle size 2–300 μm, moisture 0.5–7.0%, whiteness ≥98%, adsorption, pH resistance)
4. Quality & Technological Advantages
•Ultra-high purity, ultra-low impurities: SiO₂ ≥96%–≥99.8%; internal heavy-metal limits 50–70% stricter than national standards (Fe ≤5 ppm vs. 30 ppm national limit; Pb ≤0.1 mg/kg; As ≤1 ppm)
•Proprietary anti-yellowing technology: Low-iron purification severs the yellowing reaction chain between iron ions and ethyl maltol at the source. Zero discoloration, zero fading, zero performance degradation under baking, sugar boiling, spray drying, and long-term storage
•End-to-end quality control: GMP dust-free workshops, dedicated food-grade lines, 26-step full-lifecycle inspection, atomic fluorescence spectrometers / laser particle analyzers / HPLC, full batch traceability, zero allergen & cross-contamination risk
•Superior application performance: +40% flowability vs. standard commercial grades; 24-month anti-caking efficacy; chemically inert; odorless, tasteless, non-disruptive to food flavor and color
5. Comprehensive Application Coverage
•Powdered foods: salt, powdered sugar, chicken bouillon, milk powder, coffee powder, protein powder, meal replacement powder, baking premixes, cocoa powder, dehydrated vegetables
•Edible oil refining: phosphorus removal, degumming, decolorization of vegetable oils, animal oils, frying oils
•Beverages: solid beverages, beer filtration
•Pet food & feed: FAMI-QS certified, meeting global pet food ingredient standards
•Nutritional & dietary supplements: paired with high-purity, heavy-metal-free grades
6. Customization & Service Capabilities
•Full customization: particle size, purity, moisture, whiteness, adsorption performance; packaging from 1 kg retail bags to jumbo bags; multilingual labels and logo printing
•Supply chain assurance: 10,000+ tons/year, scalable; 3–10 day lead time for stocked items, 10–20 days for custom; supports EXW, FOB, CIF, DDP; 10/15/20 kg & jumbo bag options
•Technical support: free samples with COA and certificates; dedicated engineer with 2-hour response; lab simulation & formulation optimization; strategic customers enjoy priority supply, joint R&D, flexible pricing, regulatory updates
Silica Free of Black Specks
Silica Free of Black Specks
Zhonglian Chemical Food-Grade Silica Series — Core Selling Points & Advantages
1. Company Strength & Industry Position
Shandong Zhonglian Chemical is a subsidiary of Zhongqi (Guangdong) Silicon Materials (stock code: 880747), a National High-Tech Enterprise and Guangdong "Specialized & Innovative" enterprise with 20+ years of silica expertise. GMP-certified production base in Guangdong, annual capacity 10,000+ tons, 17 patents, and a technical team averaging 20+ years of industry experience.
2. Certification & Compliance — Broadest Qualification Matrix in the Industry
Certifications cover virtually every major food market worldwide:
Category Certifications / Standards
China GB 25576-2020, GB 2760, Food & Feed Additive Production Licenses
U.S. FDA 21 CFR 172.480, FCC, USP
EU EU 1333/2008, EU 10/2011, EC 1935/2004
Japan JFCC, Japan Food Sanitation Act
Systems ISO 9001:2015, ISO 22000:2018, FSSC 22000
Feed FAMI-QS
Religious SHC HALAL, OU KOSHER
Social SEDEX
Key Value: One product range satisfies market access across 50+ countries. No additional compliance testing needed. Multi-language reports, certificates, and customs documents supported.
3. Complete Product Portfolio — Six Segments
•General-Purpose: SiO₂ ≥ 96%, anti-caking / flow aid / dispersion, cost-effective for salt, sugar, bouillon, solid beverages
•Functional Enhanced: Anti-caking (≥97%), Glidant (angle of repose ≤28°, +60–80% flow, ±1.5% filling accuracy), High-Temp (200–300°C), Low-Iron Non-Yellowing (Fe ≤5 ppm), Heavy-Metal-Free (≥99.0%, ≤0.01 mg/kg)
•Application-Specific: Bakery grade (≤200°C, no grit), Seasoning/Spice grade (odorless, flavor-preserving), Beverage Powder grade (rapid dissolution, no sediment)
•Edible Oil Adsorbent: Phosphorus & gum removal, decolorization & purification, frying oil restoration, animal oil treatment, beer filtration
•Export-Grade: Multi-market universal (FDA/EU/GB/HALAL/KOSHER/JFCC), EU type, U.S. type (FCC/USP), Japan type, LCL type (50 kg MOQ)
•Premium Custom: Ultra-high purity (≥99.8%), International brand replacement (Evonik/Grace, 30–50% cost saving), Amorphous, Fully customizable (particle size 2–300 μm, moisture 0.5–7.0%, whiteness ≥98%, adsorption, pH resistance)
4. Quality & Technological Advantages
•Ultra-high purity, ultra-low impurities: SiO₂ ≥96%–≥99.8%; internal heavy-metal limits 50–70% stricter than national standards (Fe ≤5 ppm vs. 30 ppm national limit; Pb ≤0.1 mg/kg; As ≤1 ppm)
•Proprietary anti-yellowing technology: Low-iron purification severs the yellowing reaction chain between iron ions and ethyl maltol at the source. Zero discoloration, zero fading, zero performance degradation under baking, sugar boiling, spray drying, and long-term storage
•End-to-end quality control: GMP dust-free workshops, dedicated food-grade lines, 26-step full-lifecycle inspection, atomic fluorescence spectrometers / laser particle analyzers / HPLC, full batch traceability, zero allergen & cross-contamination risk
•Superior application performance: +40% flowability vs. standard commercial grades; 24-month anti-caking efficacy; chemically inert; odorless, tasteless, non-disruptive to food flavor and color
5. Comprehensive Application Coverage
•Powdered foods: salt, powdered sugar, chicken bouillon, milk powder, coffee powder, protein powder, meal replacement powder, baking premixes, cocoa powder, dehydrated vegetables
•Edible oil refining: phosphorus removal, degumming, decolorization of vegetable oils, animal oils, frying oils
•Beverages: solid beverages, beer filtration
•Pet food & feed: FAMI-QS certified, meeting global pet food ingredient standards
•Nutritional & dietary supplements: paired with high-purity, heavy-metal-free grades
6. Customization & Service Capabilities
•Full customization: particle size, purity, moisture, whiteness, adsorption performance; packaging from 1 kg retail bags to jumbo bags; multilingual labels and logo printing
•Supply chain assurance: 10,000+ tons/year, scalable; 3–10 day lead time for stocked items, 10–20 days for custom; supports EXW, FOB, CIF, DDP; 10/15/20 kg & jumbo bag options
•Technical support: free samples with COA and certificates; dedicated engineer with 2-hour response; lab simulation & formulation optimization; strategic customers enjoy priority supply, joint R&D, flexible pricing, regulatory updates
Silica Free of Black Specks
Silica Free of Black Specks
Silica Free of Black Specks
Silica Free of Black Specks
✓ Verified Elite Supplier
