Specifications：
　　
Formula (NH4)4Ce(SO4)4
Molecular Weight 596.52
Appearance Yellow
Solubility Soluble in water & strong mineral acids
Stability Hygroscopic

Product Code	02121	02123	02125
Grade	99.99%	99.9%	99%
CHEMICAL COMPOSITION
CeO2/TREO (% min.)	99.99	99.9	99
TREO (% min.)	25	25	25
Ce4+/Total Ce (% min.)	97	96	96
Rare Earth Impurities	% max.	% max.	% max.
La2O3/TREO Pr6O11/TREO Nd2O3/TREO Sm2O3/TREO Y2O3/TREO	0.005 0.005 0.001 0.001 0.001	0.03 0.01 0.05 0.005 0.001	0.5 0.5 0.5 0.05 0.03
Non-Rare Earth Impurities	% max.	% max.	% max.
Fe2O3 SiO2 CaO PbO Al2O3 Cl-	0.0005 0.01 0.005 0.001 0.01 0.01	0.005 0.03 0.03 0.002	0.005 0.05 0.05

Application：is applied as industrial antioxidant and etching agent for the integrated circuit, is also raw material for polishing powder, special glass and ceramics.

Contact Telephone：0086-20-87750576,87629994