Devolite™, produced by Imerys Kaolin, is a specific type of kaolin clay sourced from Cornwall, UK. Below are its specifications and typical properties:
Specifications:
- Brightness (ISO R457): 78.5 ± 1.5
- +53 μm (mass % max.): 0.05
- +10 μm (mass % max.): 35
- -2 μm (mass % min.): 25.0 – 33.0
- Moisture (mass % max.): 1.5
- pH: 7.5 ± 0.5
Typical Properties:
- Yellowness: 7
- Specific gravity: 2.6
- Surface area (BET; m2/g): 7
- Oil absorption (g/100g): 33
- Aerated powder density (kg/m3): 400
- Tapped powder density (kg/m3): 650
- Water soluble salt content (mass %): 0.25
Chemical analysis by X-ray fluorescence:
- SiO2 (mass %): 49
- Al2O3 (mass %): 36
Additionally, it has the following identification numbers:
- EINECS No. (European Inventory of Existing Commercial Chemical Substances): 310-194-7
- CAS No. (Chemical Abstracts Service): 1332-58-7
Devolite™ kaolin finds applications in various industries such as ceramics, paper, rubber, plastics, and pharmaceuticals. It is commonly used as a filler, extender, coating pigment, or functional additive in different formulations, contributing to properties like brightness, texture, and rheology.