Food Additives
Silicon dioxide 7631-86-9 Typical Properties
| Item | Specifications | Results | Inspection method |
| Appearance | White to Off White, granule | Conform | HG/T3063-1999 |
| Whiteness | ≥93% | 99% | HG/T3063-1999 |
| Purity of Sio2 | ≥95% | 99.7% | HG/T3062-1999 |
| Particle size | 25-30um | 28 um | HG/T3063-1999 |
| PH(5% suspension) | 6.5-8.5 | 7.3 | HG/T3067-1999 |
| Heating loss(105℃ for 2hr.) | ≤10% | 3.1% | HG/T3065-1999 |
| Ignition loss (1000℃ for 2hr.) | ≤8.5% | 3.5% | HG/T3066-1999 |
| Absorption value, ml/100g | 320-370 | 350 | HG/T3072-1999 |
| Specific surface area, m2/g | ≥200 | 220 | HG/T3073-2009 |
| Heavy Metals (Pb) | ≤0.003% | ＜0.001% | GB/T5009.74-2003 |
| Arsenic (As) | ≤0.0003% | ＜0.00001% | GB/T5009.11-2003 |
| Sodium sulfate (Na2SO4) | ≤0.4% | ＜0.02% | HG/T3071-1999 |
| Ash | ≤8.5% | 4.0% | GB/T5009.11-2003 |
| Iron (Fe) | ≤0.015% | Conform | GB/T5009.11-2003 |
| Conclusion | The results conforms with Enterprise standards | ||
Silicon dioxide 7631-86-9 Usage
- Widely used in industries such as metallurgy, refractory materials, chemicals, abrasives and construction
- About 70% of white carbon black is used as a reinforcing filler for natural rubber and synthetic rubber, other fillers for synthetic resins, ink thickeners, anti-settling agents for pigments in coatings, matting agents, soft polishing agents for vehicles and metals, and Anti-chemicalbook settling agent in emulsifier. It can also be used as a carrier for pesticides and as a filler for lightweight newsprint. Due to the advantages of good electrical insulation, low heat generation, light color and no pollution, white carbon black is also widely used in hoses, tapes, heat-resistant gaskets, rubber rollers and medical products.
- As an anti-caking agent, our country stipulates that it can be used as a powder essence with a maximum usage of 80g / kg; it can also be used for milk powder, cocoa powder, egg powder, vegetable fat powder and instant coffee, etc., with a maximum usage of 15.0g / kg.
- Used as a reinforcing agent for rubber, an opening agent to prevent the adhesion of plastic films, an anti-settling agent for pigments, a matting agent for paints, a viscosity regulator, a pharmaceutical excipient, a catalyst carrier, and for cosmetics.
- Used as filler for color TV cable, wire sleeve, rubber transparent bottom. Also used as thickening agent, thixotropic agent, anti-precipitation agent, matting agent, plastic opening agent, liquid drug adsorbent, cosmetics and paper filler
Silicon dioxide 7631-86-9 Packaging and Shipping
Packing:25 kg bag and drum ,1000kg bag
Delivery:by air ,by sea ,by courier
Silicon dioxide 7631-86-9 Storage
Stored in a cool dry place out of direct sunlight.