Nano sio2 100 nano

When sourcing 100nm Nano SiO2, you must prioritize particle size distribution (D50) to ensure it strictly adheres to the 100nm specification. Additionally, verify the Specific Surface Area (BET), which typically ranges from 150 to 400 m²/g depending on the application. For liquid dispersions, check the pH value and purity levels (ideally >99.8%) to prevent contamination in sensitive chemical processes.

The choice depends entirely on your solvent system. Hydrophilic Nano SiO2 is suitable for aqueous (water-based) systems and provides excellent thickening and thixotropy. Hydrophobic Nano SiO2, which is surface-treated with silanes, is essential for organic solvents, resins, and coatings to improve water resistance, anti-settling properties, and scratch resistance.

Buyers must ensure the supplier provides a Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) compliant with GHS standards. For exports to Europe, REACH registration is mandatory. If the product is used in food packaging or cosmetics, verify FDA (US) or EFSA (EU) compliance to ensure the nanoparticles meet safety migration limits.

This specific size is widely used in mechanical polishing (CMP) for semiconductors, as a reinforcing agent in silicone rubber, and as a matting agent in high-end coatings. It is also critical in inkjet paper coatings to improve ink absorption and in plastics to enhance thermal stability and mechanical strength.

Nano SiO2 is a low-density, high-volume powder that is highly susceptible to moisture. Ensure the supplier uses multi-layer moisture-proof valve bags or vacuum packaging. Because it is a 'light cargo,' shipping costs are often calculated by volume (CBM) rather than weight; therefore, negotiating palletized shipping is crucial to prevent bag breakage and inhalation hazards during unloading.

Always request a COA (Certificate of Analysis) for the specific batch before shipment. For long-term contracts, use Made-in-China.com's Secured Trading services to protect your payment. Negotiate a tiered pricing model where the price drops by 5-10% as your annual volume exceeds 5 or 10 metric tons, and always clarify the Incoterms (typically FOB or CIF) to avoid hidden port charges.

Check if the supplier is an Audited Supplier on Made-in-China.com, which confirms their factory existence and production capacity. Request a Scanning Electron Microscopy (SEM) image of the product sample to verify the 100nm spherical morphology. Avoid suppliers who cannot provide third-party lab reports (e.g., SGS or Intertek) for purity and particle size.

Never transfer funds to personal bank accounts; always use corporate accounts verified by the platform. Utilize Inspection Services before the container is sealed to ensure the physical goods match the technical specifications. For first-time orders, start with a paid sample (500g - 1kg) to test compatibility in your local lab before committing to a full container load.