Gadolinium oxide (Gadolinium Oxide), the chemical formula is Gd₂O₃, uses monazite or mixed rare earth ore as raw materials, and through extraction and other purification steps, a samarium gadolinium mixed rare earth solution is obtained, and oxalic acid is used to precipitate gadolinium oxalate. After separation, drying, burning, Obtained gadolinium oxide. Preparation method: The samarium-gadolinium mixed rare earth solution is obtained through purification steps such as extraction. Gadolinium oxalate is precipitated with oxalic acid, separated, dried and burned to obtain gadolinium oxide
Preparation method of gadolinium oxide Gd2O3 powder
It is obtained by extracting, back-extracting, reducing zinc powder, adding oxalic acid precipitation, separating and burning the rare earth chloride solution.
Gd(C₂O₄)₃→Gd₂O₃+3CO₂↑+3CO↑
Overview of gadolinium oxide Gd2O3 powder
Gadolinium oxide Gd2O3 powder is an inorganic compound with the molecular formula Gd2O3. It is one of the most common forms of the rare earth element g, and its derivatives are potential magnetic resonance imaging contrast agents.
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. Each site has a coordination number of 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 thermal decomposition of hydroxides, nitrates, carbonates or oxalates. Oxide d is formed on the surface of metal g.
Gadolinium oxide Gd2O3 powder is a strong basic oxide that can react with carbon dioxide to form carbonate. Soluble in common inorganic acids. The complication is that oxalic acid, fluoride, sulfate and phosphate are extremely difficult to dissolve in water and can coat oxide particles, preventing them from fully dissolving. At present, there are many methods for synthesizing oxide nanoparticles, mainly the reaction of ionic ions and hydroxide to precipitate hydroxide, and then thermal dehydration to obtain oxide g. Nanoparticles are always coated with protective materials to prevent the formation of larger polycrystalline aggregates.
Gadolinium oxide Gd2O3 powder of Ga nanoparticles is a potential MRI contrast agent. At 7.05 T (an unusually high electric field compared to the 0.5-3 T of clinical MRI scanners), oxide g particles of 20-40 nm were prepared to coat the desulfuride, each with a relaxation time of 4.8 s-1 mm - As shown in Figure 1, smaller particles with ions between 2 and 7 nm are tested as MRI agents.
Application of gadolinium oxide Gd2O3 powder
Phosphors for color picture tubes
Optical glass
Atomic Reaction Absorber
The microwave application to be used is the preparation of gadolinium garnet yttrium.
Gadolinium oxide Gd2O3 powder price
The price of gadolinium oxide Gd2O3 powder will change randomly with the production cost of gadolinium oxide Gd2O3 powder, transportation cost, international situation, exchange rate, market supply and demand and other factors. Tanki New Materials Co.,Ltd aims to help various industries and chemical wholesalers find high-quality, low-cost nanomaterials and chemicals by providing a full range of customized services. If you are looking for gadolinium oxide Gd2O3 powder, please feel free to send for the latest gadolinium oxide Gd2O3 powder price.
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.
| Technical Parameter of Gadolinium Oxide Gd2O3 Powder: | |||||||
| ITEM | SPECIFICATIONS | TEST RESULTS | |||||
| Gd2O3/TREO(%,Min) | 99.999 | 99.999 | |||||
| TREO(%,Min) | 99 | 99.64 | |||||
| RE Impurities(ppm/TREO,Max) | |||||||
| La2O3 | <1.0 | ||||||
| CeO2 | <1.0 | ||||||
| Pr6O11 | <1.0 | ||||||
| Nd2O3 | <1.0 | ||||||
| Sm2O3 | <1.0 | ||||||
| Eu2O3 | <1.0 | ||||||
| Tb4O7 | 1.5 | ||||||
| Dy2O3 | <1.0 | ||||||
| Ho2O3 | <1.0 | ||||||
| Er2O3 | <1.0 | ||||||
| Tm2O3 | <1.0 | ||||||
| Yb2O3 | <1.0 | ||||||
| Lu2O3 | <1.0 | ||||||
| Y2O3 | <1.0 | ||||||
| Non-Re Impurities(ppm,Max) | |||||||
| Fe2O3 | <1.0 | ||||||
| CaO | 4 | ||||||
| SiO2 | 13 | ||||||
| Cl- | <50 | ||||||
| Al2O3 | <50 | ||||||
| L.O.I (%) | 0.26 | ||||||
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