umvelisi umthengisi Erbium oxide cas 12061-16-4
I-Praseodymium oxide CAS 12037-29-5 ngexabiso elihle
I-Lanthanum oxide CAS 1312-81-8 ixabiso lokuvelisa
IHolmium Oxide cas 12055-62-8 umthengisi wefektri
I-Samarium oxide 12060-58-1
I-Ytterbium oxide 1314-37-0
I-Thulium oxide 12036-44-1
I-Europium Oxide 1308-96-9
I-Dysprosium oxide 1308-87-8
I-Cesium carbonate 534-17-8
I-Palladium sulfate 13566-03-5
Umthengisi p-Hydroxybenzaldehyde cas 123-08-0 umboneleli wefektri