Enhanced TDS
Knowde-enriched technical product data sheet
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
- Technologies
- Product Families
Features & Benefits
- Benefit Claims
- Labeling Claims
- CASE Ingredients Features
- Materials 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 mĀ²/g - SiOā 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 Ā°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
- AEROSILĀ® Fumed Silica
- AEROSILĀ® 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 AEROSILĀ® 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 AEROSILĀ® particles. This latter type of functional group in particular is responsible for the hydrophilic behavior of untreated AEROSILĀ®. Figure shows the surface groups of hydrophilic AEROSILĀ® grades.
Surface groups of hydrophilic AEROSILĀ® grades.
Figure below provides a summary of these and highlights the difference between them and hydrophilic AEROSILĀ® grades according to the schematically represented surface groups. All hydrophobic AEROSILĀ® grades bear the suffix "R" to indicate their water- repellent character.
Surface groups of hydrophobic AEROSILĀ® grades.
The hydrophobic nature of aftertreated AEROSILĀ® grades compared with AEROSILĀ® 300 can be illustrated by means of moisture adsorption in increasingly humid conditions. Figure below shows the corresponding isotherms.
Adsorption isotherms of various AEROSILĀ® grades at room temperature (small samples).