How is the gadolinium oxide Gd2O3 powder formed?

Gadolinium oxide Gd2O3 powder overview

Gadolinium oxide Gd2O3 powder is an inorganic compound with the molecular formula Gd2O3. It is one of the most common forms of rare earth element g, and its derivatives are potential magnetic resonance imaging contrast agents.

Using monazite or mixed rare earth ore as raw materials, through extraction and other purification steps, a samarium-gadolinium mixed rare earth solution is prepared, and gadolinium oxalate is precipitated with oxalic acid, and the gadolinium oxide is obtained after separation, drying, and burning. Preparation method: After purification steps such as extraction, a samarium-gadolinium mixed rare earth solution is prepared. Gadolinium oxalate is precipitated with oxalic acid, and gadolinium oxide is obtained after separation, drying and burning.

The oxide of Gadolinium Oxide Gd2O3 powder has two structures. The cubic (CI80, IA3, No.206) structure is similar to manganese (III) oxide and heavy trivalent lanthanide sesquioxide. There are two types of sites in the cubic structure. The coordination number of each site is 6, but the coordination geometry is different. The second form is monoclinic (Pearson symbol MS30, space group C2/M, number 12). At room temperature, the cubic structure is more stable. This phase becomes monoclinic at 1200°C. The melting point is higher than 2100℃～2420℃, mainly hexagonal phase.

Gadolinium oxide Gd2O3 powder can be formed by the thermal decomposition of hydroxide, nitrate, carbonate or oxalate. Gadolinium oxide is formed on the surface of the metal gadolinium.

Gadolinium oxide Gd2O3 powder is a strong alkaline oxide that can react with carbon dioxide to form carbonate. Easily soluble in common inorganic acids. Complications are that oxalic acid, fluoride, sulfate, and phosphate are extremely difficult to dissolve in water, and may cover oxide particles, preventing them from dissolving completely. At present, there are many methods for synthesizing oxide nanoparticles, mainly by reacting ionic ions with hydroxide to precipitate hydroxide, and then performing thermal dehydration to obtain oxide g. Nanoparticles are always coated with protective materials to prevent the formation of larger polycrystalline aggregates.

Ga nano-particle gadolinium oxide Gd2O3 powder is a potential MRI contrast agent. At 7.05 T (compared to 0.5-3 T of clinical MRI scanner, abnormally high electric field), prepare 20-40 nm oxide g particles to coat deshosides, and the relaxation time of each particle is 4.8 s-1 mm-1, ion Smaller particles between 2 and 7 nm are tested as MRI reagents.

Application of Gadolinium Oxide Gd2O3 Powder

Gadolinium oxide Gd2O3 powder is used as an additive for yttrium aluminum and yttrium iron garnet, sensitizing fluorescent material in medical equipment, nuclear reactor control material, raw material for preparing metal gadolinium, magnetic bubble material and optical prism additive, etc.

Gadolinium oxide Gd2O3 powder price

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Gadolinium Oxide Gd2O3 Powder Supplier

As a global supplier of gadolinium oxide Gd2O3 powder, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced technology and engineering materials. The company has successfully developed a series of powder materials (including oxides, carbides, nitrides, single metals, etc.), high-purity targets, functional ceramics, structural devices, and provides OEM services.