Lanthanum Oxide 1,high purity:99%--99.999% 2,wide range of uses 3,quality best and quantity ... stable 4,best price Grade99.999%99.995%99.99%99.9%99%La2O3/TREO (% min ... NamejJinChengYuanModel NumberCompositionLanthanum Product TypeRare Earth Oxide Content(percent)99%--99.999% ApplicationManufacturing the camera, the microscope GradePowder ColorWhite AciditySoluble in mineral ...