1.white powder 2.timely deliverly 3.purity 99%-99.999% 4.packing:double-layer film in sealed bags,net weight 50kg Lanthanum oxide: Mainly used in making the camera, microscope, the optical glass and optical fiber. In the electronic ceramics industry as well as catalyst preparation, it is also a certain purpose.This is our technical date in our company, It is for reference.We have ourselves ...