The Gadolinium oxide, with the cas registry number 12064-62-9, has the IUPAC name of gadolinium(3+); oxygen(2-). This is a kind of white powder and is insoluble in water while soluble in acid.
 
Its product categories are including Inorganics; Catalysis and Inorganic Chemistry; Chemical Synthesis; Gadolinium; GadoliniumMetal and Ceramic Science; Oxides; GadoliniumMaterials Science; Nanomaterials; Nanoparticles: Oxides, Nitrides, and Other CeramicsNanomaterials; Nanopowders and Nanoparticle Dispersions.

The physical properties of this chemical are as below: (1)#H bond acceptors: 3; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0; (5)Exact Mass: 365.835896; (6)MonoIsotopic Mass: 363.832946; (7)Topological Polar Surface Area: 3; (8)Heavy Atom Count: 5; (9)Covalently-Bonded Unit Count: 5.

The production method of this chemical is below: Firstly, extract the rare earth chloride solvent with the P2O4-kerosene-HC1-R and then divide into groups with samariumneodymiummethod; Next further extract the rare earth with raffinate and then add samarium and heavy rare earth into the organic phase to have the backextraction with 2．0 mol／L HCl; Then get the middle-weight rare earths samarium and gadolinium (Gd) concentrate and then reduce with zinc powder; Following extract europium with caustic method and have the mishmetal group method, and then dissolve the mishmetal and lastly go through a listing process of sediment with oxalic acid, seperation, drying, burning to get this product. The chemical equation is below: Gd2(C₂O₄)₃→Gd₂O₃+3CO₂+3CO.

As to its usage, it is widely applied in many ways. It could be used as the additive element of yttrium-aluminum-garnet, flourescent material in pharmaceutic apparatus, additive agent of optics prism, and the control material of preparation in metal gadolinium (Gd), magnetic bubble material and atomic-energy industry reactor.

When you are dealing with this chemical, you should be careful. For being a kind of irritant chemical to eyes, it may cause inflammation to the skin or other mucous membranes. Therefore, wear eye/face protection, and if in case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

In addition, you could obtain the molecular structure by using the following datas:
(1)Canonical SMILES: [O-2].[O-2].[O-2].[Gd+3].[Gd+3]
(2)InChI: InChI=1S/2Gd.3O/q2*+3;3*-2
(3)InChIKey: CMIHHWBVHJVIGI-UHFFFAOYSA-N 

Below are the toxicity informatin of this chemical: