22992-15-0

Usage

Uses

Used in Optical Glass Industry:
Gadolinium Oxalate Hydrate is used as a key component in the manufacturing of optical glass. Its unique properties contribute to the overall quality and performance of the final product.
Used in Microwave Applications:
In the field of electronics, Gadolinium Oxalate Hydrate serves as a dopant for Gadolinium Yttrium Garnets, which are essential for microwave applications due to their specific magnetic properties.
Used in Phosphor Production for Colour TV Tubes:
High purity Gadolinium Oxalate Hydrate is utilized in the production of phosphors for colour television tubes. Its presence enhances the brightness and color quality of the display.
Used in Medical Imaging:
When mixed with EDTA dopants, Gadolinium Oxalate Hydrate is used as an injectable contrast agent for patients undergoing magnetic resonance imaging (MRI). Its high magnetic moment allows it to reduce relaxation times, thereby enhancing signal intensity and improving the clarity of the images produced.

InChI:InChI=1/3C2H2O4.2Gd.10H2O/c3*3-1(4)2(5)6;;;;;;;;;;;;/h3*(H,3,4)(H,5,6);;;10*1H2/q;;;2*+3;;;;;;;;;;/p-6

Upstream product

• 144-62-7 oxalic acid 
• 10138-52-0 gadolinium(III) chloride 
• 7732-18-5 water 
• 62-76-0 sodium oxalate 
• 6153-56-6 oxalic acid dihydrate 
• 7647-01-0 hydrogenchloride 
• 553-90-2 Dimethyl oxalate 

Relevant academic research and scientific papers

Field-induced slow magnetic relaxation and magnetocaloric effects in an oxalato-bridged gadolinium(iii)-based 2D MOF

The coexistence of field-induced slow magnetic relaxation and moderately large magnetocaloric efficiency in the supra-Kelvin temperature region occurs in the 2D compound [GdIII2(ox)3(H2O)6]n·4nH2O (1), a feature that can be exploited in the proof-of-concept design of a new class of slow-relaxing magnetic materials for cryogenic magnetic refrigeration.

Odd-Even Effect on Luminescence Properties of Europium Aliphatic Dicarboxylate Complexes

The odd–even effect in luminescent [Eu2(L)3(H2O)x]?y(H2O) complexes with aliphatic dicarboxylate ligands (L: OXA, MAL, SUC, GLU, ADP, PIM, SUB, AZL, SEB, UND, and DOD, where x=2–6 and y=0–4), prepared by the precipitation method, was observed for the first time in lanthanide compounds. The final dehydration temperatures of the Eu3+ complexes show a zigzag pattern as a function of the carbon chain length of the dicarboxylate ligands, leading to the so-called odd-even effect. The FTIR data confirm the ligand–metal coordination via the mixed mode of bridge–chelate coordination, except for the Eu3+-oxalate complex. XRD results indicate that the highly crystalline materials belong to the monoclinic system. The odd–even effect on the 4 f–4 f luminescence intensity parameters (Ω2 and Ω4) is explained by using an extension of the dynamic coupling mechanism, herein named the ghost-atom model. In this method, the long-range polarizabilities (a*) were simulated by a ghost atom located at the middle of each ligand chain. The values of a* were estimated using the localized molecular orbital approach. The emission intrinsic quantum yield (QLn Ln) of the Eu3+ complexes also presented an the odd-even effect, successfully explained in terms of the zigzag behavior shown by the Ω2 and Ω4 intensity parameters. Luminescence quenching due to water molecules in the first coordination sphere is also discussed and rationalized.

Self-assembled light lanthanide oxalate architecture with controlled morphology, characterization, growing mechanism and optical property

Flower-like Sm2(C2O4)3· 10H2O had been synthesized by a facile complex agent assisted precipitation method. The flower-like Sm2(C2O 4)3·10H2O was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, thermogravimetry- differential thermal analysis and photoluminescence. The possible growth mechanism of the flower-like Sm2(C2O4) 3·10H2O was proposed. To extend this method, other Ln2(C2O4)3·nH2O (Ln = Gd, Dy, Lu, Y) with different morphologies also had been prepared by adjusting different rare earth precursors. Further studies revealed that besides the reaction conditions and the additive amount of complex agents, the morphologies of the as-synthesised lanthanide oxalates were also determined by the rare earth ions. The Sm2(C2O4) 3·10H2O and Sm2O3 samples exhibited different photoluminescence spectra, which was relevant to Sm 3+ energy level structure of 4f electrons. The method may be applied in the synthesis of other lanthanide compounds, and the work could explore the potential optical materials.

Synthesis and thermal decomposition of mixed Gd-Nd oxalates

Several (Gd1-xNdx)2[C2O 4]3?nH2O samples (0≤x≤1) were prepared by a coprecipitation method: the precipitation is quantitative and all the samples are homogeneous in stoichiometry. XRD analyses have shown that a complete solid solution is formed over the whole range of compositions. The dried Gd rich oxalates have initially a low water content which gradually increases with the Nd content. All the oxalates decompose in O2 around 700°C either into a single mixed oxide or in a mixture of oxides through several steps, which can be ascribed to the loss of water and CO 2.

Thermal decomposition of mixed Ce and Gd oxalates and thermal properties of mixed Ce and Gd oxides

The aim of the present work is to study the thermal decomposition of the mixed oxalates (Ce1-xGdx)2(C2O 4)3?nH2O. The mechanisms of decomposition of Ce and Gd oxalate are different, and mixed oxalates behave in an intermediate way. Their dehydration stages are more similar to those of Gd oxalate, as not all the molecules of water are equivalent like the cerium oxalate. The decomposition leads to (Ce1-xGdx)O2-x/2. For x close to 0 or to 1 two solid solutions exist, while for the central composition, the presence of a biphasic region can not be excluded.

Thermal decomposition of rare-earth-doped calcium oxalate. Part 1. Doping with lanthanum, samarium and gadolinium

The thermal decomposition of calcium oxalate doped with lanthanum, samarium or gadolinium has been investigated using thermogravimetry (TG) and differential thermal analysis (DTA). The kinetics of the decomposition steps have been studied by the non-isothermal TG technique. The doped oxalates decompose in a similar way to pure CaOx. After dehydration, decomposition of doped oxalates proceeds in two overlapping exothermic stages, i.e. decomposition of lanthanide oxalates followed by that of calcium oxalate. Samples heated up to 1000°C reveal the existence of CaO and Ln2O3 in separate phases.

Magnetic susceptibilities of lanthanide(III)-CMPO complexes and lanthanide(III) oxalate complexes

Lanthanide(III)-CMPO complexes with nitrate ion as counter-ion and lanthanide(III)-oxalate complexes were synthesized. The former complexes were identified as Ln(NO3)3·3CMPO for La(III), Ce(III), Pr(III) and Nd(III), whereas Ln(NOsu

THERMAL ANALYSIS OF THE OXALATE HEXAHYDRATES AND DECAHYDRATES OF YTTRIUM AND THE LANTHANIDE ELEMENTS.

Simultaneous thermogravimetry and differential thermal analysis data are presented for yttrium and the tervalent lathanide oxalate decahydrates (Y, La - Er excluding Pm) and hexahydrates (Y, Er - Lu). The dehydration and the oxalate and intermediate dioxy