This information is based on our present state of knowledge and is intended to provide general notes on our products and their uses. It should not be construed as guaranteeing specific properties or suitability for a particular application
SACHTOLITH® L is a white pigment based on synthetic zinc sulfide obtained from highly purified solutions. The product is chemically resistant on the pH range between 4 and 12. It has a refractive index of 2.37 (of ZnS), high brightness, and neutral hue. Low absorption in the near UV range helps increase compatibility with optical brighteners than other inorganic white pigments. SACHTOLITH® L is suitable for abrasion-sensitive coatings and gives lubricating properties to duro plastics.
| Property | Value | Unit |
|---|---|---|
| ZnS content | Approx. 98 | % |
| Organic treatment | None | – |
| Brightness L* (powder) | Approx. 97 | – |
| Crystal size | Approx. 0.3 | µm |
| 45 µm sieve residue | ≤0.02 | % |
| pH | Approx. 6 | – |
| Specific gravity | Approx. 4.0 | g/cm³ |
| Specific surface area | Approx. 8 | m²/g |
| C.A.S No. | 1314-98-3 | – |
| Rel. scattering power (Reference pigment TiO₂ = 100; PVC = 17%) | Approx. 54 | – |
| Hardness (Mohs) | 3 | – |
As for all fine powders, the handling of titanium dioxide pigments can give rise to airborne dust. Good industrial hygiene practice should be observed so as to avoid the generation and subsequent inhalation of dust. For more information, refer to our material safety data sheet.
Keep the product unstacked in dry and closed rooms at normal temperature and air humidity. To achieve best possible results, we recommend storage under the conditions stated above and use within 12 months from delivery.
