Functional Roles
Industries Served
Physical Properties
melting_point
3110 u00b0F (NIOSH, 2024)
boiling_point
4046 u00b0F at 760 mmHg (NIOSH, 2024)
density
2.2 (NIOSH, 2024) - Denser than water; will sink
solubility
Insoluble (NIOSH, 2024)
vapor_pressure
0 mmHg (approx) (NIOSH, 2024)
GHS / SDS Safety
Danger
Irritant
Health Hazard
- H372 (46%): Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H315 (16.7%): Causes skin irritation [Warning Skin corrosion/irritation]
- H350: May cause cancer [Danger Carcinogenicity]
- H350i: May cause cancer by inhalation [Danger Carcinogenicity]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- Reported as not meeting GHS hazard criteria by 7724 of 9127 companies
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H315 (56.3%): Causes skin irritation [Warning Skin corrosion/irritation]
- Reported as not meeting GHS hazard criteria by 1 of 1 companies. For more detailed information, please visit ECHA C&L website.
- H319 (16.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H319 (56.3%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- Not Classified
- Reported as not meeting GHS hazard criteria by 17 of 17 companies. For more detailed information, please visit ECHA C&L website.
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- Reported as not meeting GHS hazard criteria by 1614 of 1682 companies (only 4% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
- H335 (16.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- Reported as not meeting GHS hazard criteria by 1086 of 1124 companies (only 3.4% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
- H350 (12.6%): May cause cancer [Danger Carcinogenicity]
- H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]
- H373 (29.4%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H335 (56.3%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
Chemical Identity
| CAS Number | 112945-52-5 |
| IUPAC Name | dioxosilane |
| InChI Key | VYPSYNLAJGMNEJ-UHFFFAOYSA-N |
| PubChem CID | 24261 |
| INCI Name | SILICA |
Synonyms & Trade Names
Full Description
Fumed Silica (CAS: 112945-52-5) is an amorphous, pyrogenic silica powder that functions as a filling and extending agent in industrial formulations. This highly dispersible metal oxide filler is utilized across beauty & personal care, coatings & construction, and plastics & polymers industries for its thickening and reinforcement properties. The material has a molecular formula of O2Si, is insoluble in water, and exhibits a density of 2.2 g/cm³.