Cerium hydroxide 
 Molecular formula: Ce (OH) 4? XH2O 
 Appearance: light yellow powder of cerium hydroxide. 
 Uses: used in the production of high cerium compounds. 
 Project specifications analytical instruments 
 The relative purity of rare earth (wt%) 
 La2O3/TREO ≤ 0.03 ≤ 0.05 ≤ 0.003 ≤ 0.001 ICP spectrometer 
 CeO2/TREO ≥ 99.0 ≥ 99.5 ≥ 99.9 ≥ 99.99 
 Pr6O11/TREO ≤ 0.025 ≤ 0.010 ≤ 0.005 ≤ 0.001 
 Nd2O3/TREO ≤ 0.025 ≤ 0.010 ≤ 0.005 ≤ 0.001 
 Sm6O3/TREO ≤ 0.02 ≤ 0.004 ≤ 0.004 ≤ 0.001 
 Y2O3/TREO ≤ 0.01 ≤ 0.001 ≤ 0.001 ≤ 0.001 
 Non-rare earth impurities (wt%) 
 Fe2O3 ≤ 0.01 ≤ 0.01 ≤ 0.008 ≤ 0.0001 atomic absorption spectrophotometer 
 CaO ≤ 0.08 ≤ 0.10 ≤ 0.008 ≤ 0.0002 
 CI-≤ 0.05 ≤ 0.05 ≤ 0.05 ≤ 0.0005 
 SiO2 ≤ 0.03 ≤ 0.05 ≤ 0.02 ≤ 0.0002 
 Description: cerium hydroxide 
 Packaging: The product is usually packaged in 1-50kg, can also be packed according to user requirements. Packaging is woven bags lined with plastic.