Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- INCI Name
- CASE Ingredients Functions
- Cosmetic Ingredients Functions
- Plastics & Elastomers Functions
- CAS No.
- 112926-00-8
- EC No.
- 601-214-2
Features & Benefits
- Benefit Claims
- CASE Ingredients Features
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Applications
- Very well suited for Hydrophobic silica application.
- Well suited for Anti-settling application.
Typical Applications
- Plasticizers
- Blowing agents
- Antistatic agents
- Anti-fogging agents
Properties
- Physico-Chemical Properties
| Value | Units | Test Method / Conditions | |
| Tamped Density (ex plant) | approx. 60 | g/l | — |
| Specific Surface Area (BET), Multipoint | 230 - 290 | m²/g | — |
| SiO₂ Content (based on ignited material) | min. 99.8 | wt % | — |
| pH Value (in 4% dispersion) | 5.5 - 8.0 | — | ISO 787-9 |
| Loss on Drying* (at 105 °C, 2 hours) | max. 0.5 | wt % | ISO 787-2 |
| Carbon Content | 2.0 - 3.0 | wt % | — |
Regulatory & Compliance
- Chemical Inventories
Technical Details & Test Data
- AEROSIL® Fumed Silica
- AEROSIL® fumed silica is a highly dispersed, amorphous, very pure silica manufactured by high-temperature hydrolysis of silicon tetrachloride in an oxyhydrogen gas flame. The primary particles formed in the AEROSIL® process are virtually spherical and free of pores.
- During the formation of the primary particles, aggregates are formed which further accumulate into agglomerates. Under shear, these agglomerates can be returned back into smaller aggregates.
- Siloxane and silanol groups are found on the surface of the AEROSIL® particles. This latter type of functional group in particular is responsible for the hydrophilic behavior of untreated AEROSIL®. Figure shows the surface groups of hydrophilic AEROSIL® grades.
Surface groups of hydrophilic AEROSIL® grades.
Figure below provides a summary of these and highlights the difference between them and hydrophilic AEROSIL® grades according to the schematically represented surface groups. All hydrophobic AEROSIL® grades bear the suffix "R" to indicate their water- repellent character.
Surface groups of hydrophobic AEROSIL® grades.
The hydrophobic nature of aftertreated AEROSIL® grades compared with AEROSIL® 300 can be illustrated by means of moisture adsorption in increasingly humid conditions. Figure below shows the corresponding isotherms.
Adsorption isotherms of various AEROSIL® grades at room temperature (small samples).
Packaging & Availability
- Regional Availability