Baryte
Natural baryte (barium sulphate, chemical formula BaSO4) can be characterised by:
- High inertness in various media
- High density and, as a result, low oil absorption
- Medium Mohs hardness of 3
- High Refractive Index of 1.64
- Easy wetting
- Easy to disperse (also compared to precipitated barium sulphate)
Natural barium sulphate comes without any residual salts when compared to precipitated grades. In addition, natural barytes are easier to disperse than precipitated grades.
Basic properties
| Portaryte | B | D | |
| Property | Value |
Unit | |
| Moisture | 0.1 | 0.1 | [%] |
| pH | 9 | 9 | [-] |
| Hardness (Mohs) | 3.5 | 3.5 | [-] |
| Refractive index | 1.64 | 1.64 | [-] |
| Colour (D65/ 10°) L* | 96 | beige | [-] |
| BaSO4 + SrSO4 | 98.5 | 96.5 | [%] |
| SiO2 | 1 | 3 | [%] |
| Fe2O3 | 0.05 | 0.3 | [%] |
| Density | 4.4 | 4.4 | [kg/ dm3] |
Products:
| Product | Grade | D50
[µm] |
D97
[µm] |
OA
[g/ 100 g] |
| Portaryte | B10 | 2.6 | 11.0 | 10 |
| B15 | 3.4 | 16.0 | 10 | |
| B25 | 5.5 | 25.0 | 10 | |
| Portaryte | D20 | 5.0 | 20 | 10 |
| D40 | 8.0 | 38.0 | 9 |
Production Location: Geertruidenberg (NL), Poviglio (IT), Brassington (UK), Ramensky (RU)
Application:
Baryte’s main benefit for use in plastic pipes is sound-deadening. It will also provide chemical resistance and weatherability. Due to its low hardness it is also easy to process and will allow for a smooth surface of the extruded product.
Functionalities Performance, Durability, Optical and Processing
Durability
Optical
Processing
Performance
