CaS0 4 + 20H— → SO/— + Ca (0H) 2
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2025-08-15 05:06
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Titanium dioxide is considered safe for use in cosmetics products by expert bodies around the world, including Europe's Scientific Committee on Consumer Safety (SCCS) and the U.S. Food and Drug Administration (FDA). Nano grade titanium dioxide has been assessed by the SCCS and is approved by the European Commission for use as a UV filter.
The sealing lip of the RST-D is more heavy-duty, so it can cope with pressures of up to 10 bar at slightly lower rotation speeds.
The perfect remedy for this is to use oil seal materials that are rated for the temperature of your application. Also, ensure that the elastomer is free from volatile constituents like waxes, plasticizers, etc.
Figure 14.1. Shaft seals (DuPont Dow Elastomers).