Cerium Oxide Polishing Powder for Glass Edging Machines
Name: Cerium Oxide Polishing Powder (Rare Earth Oxide )
Other Name:Cerium(IV)oxide,Cerium dioxide,Ceria, Ceric OxideFormula ：CeO2
Melting point: 2600ºC
Widely applied in glass, ceramics and catalyst manufacturing. In glass industry, it is considered to be the most efficient glass polishing agent for precision optical polishing. It is also used to decolorize glass by keeping iron in its ferrous state.
The ability of cerium-doped glass to block out ultra violet light is utilized in the manufacturing of medical glassware and aerospace windows.
It is also used to prevent polymers from darkening in sunlight and to suppress discoloration of television glass.
It is applied to optical components to improve performance. High purity Ceria are also used in phosphors and dopant to crystal.
Preparation Method: Oxalate Precipitation Method, Cerium Chloride or Cerium nitrate liquor as raw material,use ammonia water to make the Ph down to 2,drop Oxalic acid subside the cerium oxalate,after thermal maturation,separate,washing,drying under 110℃,keep the temperature at 900～1000℃ firing into Cerium Oxide. Ce2(C2O4)3→2CeO2+2CO2+4CO
（1-Average particle size is about 0.5 m, and the max size less than 2 m.
（2-It has several advantage such as fast rate of polishing, excellent abrasion resistance, great suspension and easy to clean.
TREO La2O3 CeO2 Pr6O11 Nd2O3 Fe2O3 CaO MgO F H2O
％ >94 <0.1 >99.9 <0.01 <0.01 <0.01 <0.5 <1 3-5 <0.5
Particle Size: D10>0.1 m, D50: 0.5-0.8 m, D100<3 m; pH=7~8
Net Weight: 20 kg.
Safety:Non-toxic, tasteless, non-irritating, safe, reliable, stable performance, with water and organic chemical reaction does not occur, is an ideal new or UV sunscreen agents。
Acute toxicity: Oral – rat LD50:> 5000 mg / kg; the abdominal cavity – mouse LD50: 465 mg / kg. Flammability hazardous characteristics: flammable.Storage characteristics: low temperature air drying warehouse. Extinguishing Media: Water.