Food-Grade Synthetic Amorphous Silica (INS 551 / JECFA Grade) – Grain Storage Inert Dust Product Introduction 1. Product Advantages Zhongqi Guangdong Silicon Material Co., Ltd. specializes in the R&D and production of high-purity JECFA-grade synthetic amorphous silicon dioxide (INS 551), specially developed as food-grade inert dust for grain storage protection. The product fully complies with JECFA food additive specifications, FDA 21 CFR food contact regulations, GB 25576-2020 and LS/T 1227-2022 national industry standards. It is engineered to solve prominent pain points in grain preservation, including chemical pesticide residues, pest drug resistance and storage equipment corrosion. Adopting a pure physical insecticidal mechanism and featuring precisely controlled particle size (D50: 3–12μm) and optimized BET specific surface area (120–220m²/g), the product achieves efficient, safe and residue-free grain protection without chemical agents or fumigation treatment. With ultra-low heavy metal residues and excellent chemical inertness, our JECFA INS 551 silica ensures full food-grade safety and stable application performance. The core product advantages are listed below: - JECFA & FDA Certified Food-Grade Safety: Compliant with JECFA INS 551 food additive standards and FDA 21 CFR food contact requirements; ultra-low heavy metal indicators (Pb ≤10ppm, As ≤3ppm), safe for direct grain contact with no residual pollution risks for raw grain. - Pure Physical Insecticidal Mechanism: Effectively damages the wax layer on pest cuticles to trigger body dehydration and death. Zero chemical toxins, no pesticide residue, and completely avoids pest resistance caused by long-term chemical agent use. - Broad-Spectrum Pest Control Efficacy: Applicable to all major stored-grain pests, including Sitophilus oryzae, Sitophilus zeamais, Tribolium castaneum, Rhyzopertha dominica and Plodia interpunctella, realizing comprehensive grain storage protection. - Long-Lasting Protective Effect: Delivers stable efficacy for 6–12 months under dry storage conditions, with better persistent protection performance than traditional chemical grain protectants. - Non-Corrosive & Equipment-Friendly: Features stable chemical inertness, causing no corrosion or damage to steel silos, ventilation pipelines and grain monitoring equipment. - Customizable Particle Size Specification: Adjustable D50 particle size ranging from 3μm to 12μm, adaptable to multiple application scenarios including aerosol spraying, grain blending and protective barrier laying. - Standardized GMP Production: Manufactured in GMP-certified clean production workshops to ensure stable batch purity and food-grade safety. - Full-Cycle Technical Service: Provides free pre-sales sample testing and professional on-site construction & application technical guidance. - Wide Industrial & Global Coverage: Widely applied in national grain depots, flour mills, rice processing plants and feed storage enterprises; export markets cover Southeast Asia, Europe, America, the Middle East and Russia/CIS regions. 2. Factory Advantages Zhongqi Guangdong Silicon Material Co., Ltd. is a National High-Tech Enterprise and Guangdong Provincial Specialized, Refined, Unique & Innovative Enterprise, with more than 20 years of professional experience in the R&D and production of high-end silicon-based new materials. The company owns 17 independent national patented technologies and operates a dedicated GMP-standard production base for food-grade silicon additives. Equipped with professional precision testing equipment such as atomic fluorescence spectrometers, laser particle size analyzers and BET specific surface area analyzers, we have built a rigorous full-process quality control system covering 26 inspection procedures, including raw material incoming inspection, in-production process monitoring and finished product delivery testing. The factory has passed ISO22000 food safety management system certification, achieving full traceability from raw material sources, production processing to finished product packaging, ensuring long-term stable and consistent product quality. 3. Packaging & Shipping Specifications - Standard Packaging: 10kg / 25kg food-grade PE inner lined woven bags; 1000kg bulk jumbo bags are available for customized demands. - Professional Moisture-Proof Structure: Adopts dual-layer protective design with composite film valve outer bags + PE protective layers or food-grade PE inner film bags + woven outer bags. Fully sealed packaging effectively isolates moisture and dust, adapting to long-distance ocean freight. - Storage & Transportation Requirements: Store in a cool, dry and ventilated environment with relative humidity below 70% and avoid high temperature and direct sunlight. The product has a shelf life of 24 months. Classified as non-hazardous, non-flammable and non-corrosive general chemical goods, it supports global sea, air and land transportation with no dangerous goods surcharges. - Standardized Labeling & Customization: Each package is labeled with complete food additive information, including CAS No. 7631-86-9, INS 551, production license number, batch number and net weight. Custom private label printing and personalized packaging services are available. - Reference Application Dosage (in accordance with LS/T 1227-2022): 0.25–0.5g/m³ for empty warehouse aerosol spraying; ≤1.2g/kg for grain admixture application; 120g/m² for protective barrier line laying. 4. Qualifications & Honors - JECFA Grade Compliance (INS 551 Food Additive Specification) - FDA 21 CFR Food Contact Substance Compliance Attestation - FSSC22000 Food Safety System Certification - ISO22000:2018 Food Safety Management System Certification - ISO9001:2015 Quality Management System Certification - SHC HALAL Certification - OU KOSHER Certification - FAMI-QS Feed Additive Quality System Certification - SEDEX Social Responsibility Certification - National Food Additive Production License - National Feed Additive Production License - National High-Tech Enterprise - Guangzhou Specialized, Refined and Innovative Enterprise - 17 Authorized Patents from the State Intellectual Property Office - Compliant with LS/T 1227-2206 Technical Specification for Inert Dust Pest Control in Grain Storage