Chemical Product Library / Reference
Precipitated Silica
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Precipitated Silica |
|---|---|
| English synonyms | Precipitated silica;White carbon black;Silica, precipitated |
| Chinese name | 沉淀二氧化硅 |
| Chinese synonyms | 白炭黑;沉淀法白炭黑;水合二氧化硅 |
| Chemical category | Silica Fillers |
| CAS No. | 7631-86-9 |
| EINECS No. | 231-545-4 |
| Molecular formula | SiO2 |
| Molecular weight | 60.08 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
SiO2 content ≥98.0% (dry basis); BET surface area according to grade (e.g. 100–250 m²/g); moisture ≤6.0%; pH (5% aqueous suspension) 6.0–8.0
Performance characteristics
White powder, high specific surface area, good reinforcing and thickening properties
Application scenarios
Rubber reinforcing agent (tires, shoe soles), toothpaste abrasive, coatings matting agent, feed additive