SIPERNAT® 35
- CAS Number
- 112926-00-8
- EC Number
- 601-214-2
- Chemical Name
- Silica gel, pptd., cryst.-free, Silica gel pptd. cryst.-free
- Chemical Family
- Silica
SIPERNAT® 35 is a very finely milled, hydrophilic, slightly alkaline silica, used in dry roast hydrophobized defoamer formulations.
Properties
- Physical Form
- Powder
- Solid
Product families
- Foam Control
- Inorganics
Other characteristics
- Brand
- SIPERNAT
- Note
¹ based on original substance; ² based on dry substance (2 h/105°C); ³ based on ignited substance (2 h/1000°C); * The Physico-chemical properties are typical values. Specifications on request.
- Shelf LIfe
- 24 months
- Applications
SIPERNAT® 35 is particularly well suited for the production of in-situ hydrophobization process and produces a homogeneous result. It is not necessary to add any other catalyst.
- Technology
- Base Chemicals & Intermediates
- CASE Ingredients
- Storage Condition
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.
- Chemical Inventories
- DSL (Canada)
- EEC/EU
- TSCA (USA)
- Base Chemicals End Uses
- Defoamers
- Certifications and Compliance
- RoHS Compliant
Technical data
Table 1 of 1
10 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tamped Density (Not Sieved) | 75 | g/l | ISO 787-11 |
| Specific Surface Area (N₂) Multipoint | 170 | m²/g | ISO 9277 |
| SiO₂ Content³ | min. 97 | % | ISO 3262-19 |
| Sieve Residue (in 45 µm Spray) | max. 0.1 | % | ISO 3262-19 |
| pH Value (in 5% water) | 8.6 | — | ISO 787-9 |
| Particle Size (D50) | 9 | µm | Laser Diffraction, ISO 13320 |
| Loss on Ignition² (at 1000°C, 2 Hours) | max. 6 | % | ISO 3262-1 |
| Loss on Drying (at 105°C, 2 Hours) | max. 7 | % | ISO 787-2 |
| Electrical Conductivity (in 4% water) | max. 1200 | µS/cm | ISO 787-14 |
| DOA Absorption¹ | 245 | ml/100g | ISO 19246 |
