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Gadolinium oxide is also called Gadolinium （III）oxideis a white amorphous powder. The density of 7.407g/cm3. Chemical formula: Gd2O3, relative molecular mass: 362.5 melting point 2330± 20 ℃( there is information that is 2420℃). Insoluble in water, soluble in acid to generate corresponding salt. Easy to absorb the water in the air and carbon dioxide, with ammonia, generation of gadolinium hydrate precipitate.

Preparation of rare earth chloride solution: composed by extraction, reverse extraction, zinc powder reduction, and oxalic acid precipitation, separation, calcination and.

Nature

White odorless amorphous powder, insoluble in water, soluble in acid. Exposed in air is easy to absorb the moisture in the air and carbon dioxide.

Preparation

The monazite or mixed rare earth ore as raw material, after extraction and purification steps, preparation of samarium gadolinium mixed rare earth solution. Oxalic acid precipitation gadolinium oxalate, separating, drying, calcination, preparing gadolinium oxide.

Gd2 ( C2O4 ) 3 → Gd2O3+3CO2↑+3CO.

Use

As yttrium aluminum and yttrium iron garnet doped with agents, medical equipment in the sensitized fluorescence materials, nuclear reactor control material, preparation of raw materials, preparation of gadolinium magnetic bubble materials and optical prism additive.