About This Product
This polishing powder is a mixed rare-earth oxide in which cerium dioxide (CeO2, CAS 1306-38-3) is the main component, rather than pure cerium oxide. Total rare-earth oxide (TREO) is 92% in the three finer grades and 90% in the three coarser ones, with fluorine at 2-3% and 3-5% respectively. Grades are defined by median particle size: D50 0.4-0.6, 0.6-0.9, 1.1-1.4, 1.8-2.1, 2.8-3.3 and 3.8-4.3 µm. The powder is pale yellow to yellow-brown. The 0.4-0.6 µm grade gives a fine finish on blue glass, quartz, glass-ceramics and fused quartz, and the 0.6-0.9 µm grade is for end polishing of optical parts. The 1.1-1.4 µm grade does the first polish on TFT display glass and soft glass lenses, while 1.8-2.1 µm is a fast general-purpose powder for medium-precision flat and spherical parts. The 2.8-3.3 µm grade suits phone cover plates and quartz glass, and 3.8-4.3 µm works on hard glass. The CAS number, formula and molecular weight given belong to cerium dioxide, so check which identifiers apply on the safety data sheet for this fluorine-containing mixture. Choose the grade by D50 and the finish required, and settle the packing, 25 kg or 50 kg drums or 20 kg barrels, when ordering.
Specifications
Applications
Packaging Options
- 25 kg or 50 kg drum
- 20 kg barrel
