Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Chemical Name
- Plastics & Elastomers Functions
- CAS No.
- 7778-18-9
- EC No.
- 231-900-3
- Technologies
Features & Benefits
- Labeling Claims
- Materials Features
- Features & Benefits
- High purity, whiteness
- Soft, low abrasion
- Resistance to weak acids
- Improved UV resistance
- Excellent impact properties
- Good processibility
- Excellent Dielectric properties
- Lower specific gravity than barium sulfate
Applications & Uses
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Specific Gravity | 3 | — | — |
| pH (10% Slurry) | 10.8 | — | — |
| Mohs Hardness | 2 - 3 | — | — |
| Refractive Index | 1.6 | — | — |
| Dielectric Constant | 5.6 | — | — |
| Oil Absorption | 24 - 26 | — | — |
| Loose Bulk Density | 45 | lbs./ft.3 | — |
| Packed Bulk Density | 65 | lbs./ft.3 | — |
| L, a, b values | 95.4, 0.5, 1.9 | — | — |
| Median Particle Size | 4.6 | microns | — |
| Top Particle Size | 26 | microns | — |
| CaSO4 | 98.7 | % | — |
| CaCO3 • MgCO3 | 0.5 | % | — |
| CaCO3 | 0.3 | % | — |
| Aggregate | 0.3 | % | — |
| Free Moisture at 45°C | 0.1 | % | — |
| Combined Moisture at 225°C | 0.2 | % | — |
Regulatory & Compliance
- Certifications & Compliance
- Regulatory Information
- FDA Title 21, Volume 3, Part 184
- EU 10/2011
- China GB 9685
- French Positive List
Packaging & Availability
Storage & Handling
- Storage & Use
When properly used, USG CAS-20-4 Anhydrous Calcium Sulfate Filler is easy to work with. Keep indoors at temperatures between 65 °F – 75 °F (18 °C – 24 °C) and 45% – 55% RH. Do not stack more than two pallets high. Keep from drafts. Rotate stock. USG CAS-20-4 Anhydrous Calcium Sulfate Filler should be used within one year of the manufacturing date located on the package. Always follow handling and use directions and safety warnings on the package.