Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
- Chemical Description
SiO₂, synthetically produced amorphous silicon dioxide.
Features & Benefits
- Labeling Claims
Applications & Uses
- Markets
- Applications
- Product Applications
With its high reinforcing potential ULTRASILVN 3 imparts to rubber compounds particularly high Shore hardness, tensile strength, tear resistance and abrasion resistance. In order to achieve optimum rubber-technical data the addition of activators like glycols, amines or other alkaline accelerators is necessary. On account of the higher surface area ULTRASIL* VN 3 can provide vulcanizates of excellent transparency.
ULTRASIL® VN 3 as a precipitated silica is used as a reinforcing filler in all kind of rubber applications.
Properties
- Physical Form
- Appearance
- White powder
- Physico-Chemical Properties
- Note
1) based on original substance
2) based on ignited substance (2 h/1000°C)
*) The given data are typical values. Specifications on request.
| Value | Units | Test Method / Conditions | |
| Manganese Content¹ | max. 6 | ppm | Internal Method |
| Copper Content¹ | max. 6 | ppm | Internal Method |
| Iron Content¹ | max. 600 | ppm | Internal Method |
| SiO₂ Content² | min. 97 | % | ISO 3262-19 |
| Electrical Conductivity (4% in water) | max. 1300 | µS/cm | ISO 787-14 |
| Sieve Residue (Alpine 180 µm) | 30 | % | ISO 8130-1 |
| Sieve Residue (Mocker 45 µm) | 85 | % | ISO 787-18 |
| Tamped Density | 270 | g/l | ISO 787-11 |
| pH Value (5 % in water) | 6.2 | — | ISO 787-9 |
| Loss on Drying (2h at 105°C) | 5.5 | % | ISO 787-2 |
| Specific Surface Area (N₂, Multipoint) | 180 | m²/g | ISO 9277 |
Regulatory & Compliance
- Certifications & Compliance
Packaging & Availability
- Packaging Information
Our silica products are inert and extremely stable chemically. However, due to their high specific surface area, they can absorb moisture and volatile organic compounds from the surrounding atmosphere. Therefore, we recommend storing the products in sealed containers in a dry, cool place, and removed from volatile organic substances. Even if a product is stored under these conditions, after a longer period it can still pick up ambient moisture over time, which could lead to its exceeding the specified moisture content. For this reason, our recommended use-by date is 24 months after date of manufacture. Product more than 24 months old should be tested for moisture content before use in order to make certain that it is still suitable for the intended application.
Storage & Handling
- Shelf Life
- 2 years