Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- INCI Name
- CASE Ingredients Functions
- Cosmetic Ingredients Functions
- CAS No.
- 112945-52-5, 60676-86-0
- EC No.
- 231-545-4, 262-373-8, 310-060-2
- Technologies
Features & Benefits
- Benefit Claims
Applications & Uses
- Compatible Polymers & Resins
- Applications
Electrics & Electronics.
- Application Details
- HDK® N20ST is applied as a thickening and thixotropic agent in many organic systems, e.g. in unsaturated polyesters, coatings, printing inks, adhesives, cosmetics and others.
- HDK® N20ST shows a lower thickening activity compared to HDK ® N20.
- HDK® N20ST is not suitable for pharmaceuticals, food and feed. A good dispersion of HDK® N20ST is a must to assure optimum performance.
Properties
- Appearance
- White colloidal powder
- Typical Properties
- Specifications
- Properties
White colloidal powder of high purity.
| Value | Units | Test Method / Conditions | |
| Density (at 20°C, SiO₂) | approx. 2.2 | g/cm³ | DIN 51757 |
| Loss of Weight (at 1000°C, 2hours (based on the substance dried at 105 °C for 2 hours)) | max. 2 | % | DIN EN ISO 3262-19 |
| Refraction Index | 1.46 | — | — |
| Silanol Group Density | 2 | SiOH/nm² | — |
| SiO₂ Content (based on the substance heated at 1000°C for 2 hours) | min. 99.8 | % | DIN EN ISO 3262-19 |
| Value | Units | Test Method / Conditions | |
| BET Surface | 175 - 225 | m²/g | DIN ISO 9277 DIN 66132 |
| Loss on Drying (at 105°C, 2 hours) | max. 1.5 | % | DIN EN ISO 787-2 |
| pH (in 4% aqueous dispersion) | 3.8 - 4.3 | — | DIN EN ISO 787-9 |
| Sieve Residue (min. 40 µm) | max. 0.03 | % | DIN EN ISO 787-18, Mocker Apparatus |
| Tamped Density | approx. 40 | g/l | DIN EN ISO 787-11 |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety Notes
During transportation and processing HDK® N20ST may cause electrostatic charges. Like other amorphous silicas HDK® N20ST does not show either carcinogenic (IARC classification, Volume 68, 1997) or mutagenic properties.
Packaging & Availability
- Country Availability
- Packaging Type
- Regional Availability
- Packaging Information
HDK® N20ST is offered in following packaging:
- Pallet with paper bags: 10 kg bags
- Big bags: 150 kg (big bags on pallets)
Storage & Handling
- Storage Information
HDK® N20ST should be stored in the original packaging in dry storage areas. Due to the high surface area HDK® adsorbs volatiles and should be protected from humidity and volatiles. If single bags are taken away from an original pallet, the remaining bags of this pallet must again be protected against humidity and volatiles.