Formula: | SiO₂ |
CAS Number: | 112945-52-5 |
EC Number (EINECS): | 231-545-4 |
HS Code: | 28112200 |
UN Number: | Not classified as hazardous for transport |
IUPAC Name: | Silicon Dioxide |
Also Known As: | Pyrogenic Silica; Synthetic Amorphous Silica |
Molecular Weight, g/mol: | 60.08 |
Appearance: | White, fluffy powder |
Odor: | Odorless |
Grades Available: | Hydrophilic, Hydrophobic |
Packaging: | 10kg / 20kg bags, jumbo bags, customized |
Primary Applications
Thickening, anti-caking, and thixotropic agent in coatings, paints, adhesives, and sealants
Reinforcing filler in silicone elastomers and rubbers
Used in pharmaceutical excipients as a glidant and tablet flow aid
Secondary Applications
Used in food industry as an anti-caking agent (E551)
Additive in plastics and composites for improved mechanical properties
Optical, electronics, and catalyst carrier applications
End Industries Served: Coatings, Adhesives, Sealants, Plastics, Rubber, Pharmaceuticals, Cosmetics, Food & Beverages, Electronics
Hazard Class (GHS): Not classified as hazardous; may cause mechanical irritation (dust)
Hazard Statements (H-Codes):
H319: Causes serious eye irritation
H335: May cause respiratory irritation (dust)
Precautionary Statements (P-Codes):
P280: Wear protective gloves/eye protection
P261: Avoid breathing dust
P305 + P351 + P338: IF IN EYES – rinse cautiously with water for several minutes
Storage Conditions
Store in a dry, cool, ventilated area
Keep packaging tightly closed to prevent moisture absorption
Handle under dust-control conditions
Transport Information
ADR/RID: Not classified as dangerous goods
IMDG: Not classified as dangerous goods
IATA: Not classified as dangerous goods