Quartz
Quartz (silica, SiO2) is the core mineral within the Sibelco group and can be found in a broad number of applications, such as glass, ceramics and coatings. Quartz can be characterised by:
- Relatively high Mohs hardness of 7
- Low electrical conductivity
- Easy to wet
- High inertness in various media
- Shape (depending on the source, quartz particles can have an angular or more rounded shape).
Note when using quartz:
depending on the particle size distribution of the product, it can be labelled (STOT RE 2 or STOT RE 1). For more detailed information, visit www.safesilica.eu.
Basic properties
| Property | Value | Unit |
| Moisture | [%] | |
| pH | 7 | [-] |
| Hardness (Mohs) | 7 | [-] |
| Refractive index | 1.55 | [-] |
| Colour (D65/ 10°) L* | 93 – 96 | [-] |
| L.O.I. | < 0.3 | [%] |
| Density | 2.65 | [kg/ dm3] |
Product overview
| Coarse | ||||||
| product | Grade | D50 | Grade | D50 | D90 | OA |
| [µm] | [µm] | [µm] | [g/ 100 g] | |||
| Silica sand | M31 | 370 | M6 | 30 | 95 | 16.5 |
| M32 | 260 | M10 | 23 | 60 | 17.5 | |
| M34 | 170 | M300 | 17 | 40 | 19 | |
| M400 | 12 | 26 | 20 | |||
| M500 | 4 | 10 | 23 | |||
| M600 | 4 | 9 | 24 | |||
| M800 | 1.8 | 4.1 | 32 |
Production locations Silica Sand
Application
Quartz will provide:
- Chemical resistance: due to its inert nature, quartz will provide good chemical resistance compared to conventional fillers.
Durability
