About Oxalates

Structure of an Oxalate Anion

Oxalate is an anion with the formula C2O2-4, also written [(COO)2]2-. The ion forms salts or coordination complexes with many metals. The oxalate salts of alkali earth metals, such as calcium oxalate, a major component of human kidney stones that is also found in some plants as sharp crystals known as raphides, are insoluble in water and irritating to the skin and digestive tract. Calcium oxalate is used in the production of ceramics, while strontium oxalate and barium oxalate are used as reducing agents in laboratory chemistry and pyrotechnics.

Other oxalates used as chemical reagents include potassium hydrogenoxalate, also known as salt of sorrel, due to its occurrence in the sorrel plant. It is used in photography and for the removal of ink stains. Ferric oxalate is a chemical compound used in platinum printmaking, while cobalt oxalate is used in the production of cobalt catalysts. Oxalates may also be used in some instances as sources of the metals they contain.

Recent Research & Development for Oxalates

Crystal Growth in the Thorium-TEDGA-Oxalate-Nitrate System: Description and Comparison of the Main Structural Features., Farger, Pierre, Haidon Blaise, Roussel Pascal, Arab-Chapelet Bénédicte, and Rivenet Murielle , Inorg Chem, 2019 Jan 08, (2019)

A GH family 28 endo-polygalacturonase from the brown-rot fungus Fomitopsis palustris: Purification, gene cloning, enzymatic characterization and effects of oxalate., Tanaka, Yuki, Suzuki Tomohiro, Nakamura Luna, Nakamura Mai, Ebihara Shun, Kurokura Takeshi, Iigo Masayuki, Dohra Hideo, Habu Naoto, and Konno Naotake , Int J Biol Macromol, 2019 Feb 15, Volume 123, p.108-116, (2019)

Maize Oxalyl-CoA Decarboxylase1 Degrades Oxalate and Affects the Seed Metabolome and Nutritional Quality., Yang, Jun, Fu Miaomiao, Ji Chen, Huang Yongcai, and Wu Yongrui , Plant Cell, 2018 Sep 10, (2018)

Conducting Anilate-Based Mixed-Valence Fe(II)Fe(III) Coordination Polymer: Small-polaron Hopping Model for Oxalate-Type Fe(II)Fe(III) 2D Networks., Sahadevan, Suchithra Ashoka, Eacute Alexandre Abherv, Monni Noemi, de Pipaón Cristina Sáenz, Galán-Mascarós José Ramón, Waerenborgh João Carlos, Vieira Bruno J. C., Auban-Senzier Pascale, Pillet Sébastien, Bendeif El-Eulmi, et al. , J Am Chem Soc, 2018 Sep 10, (2018)

Ascorbic acid-induced oxalate nephropathy: a case report and discussion of pathologic mechanisms., Lin, Weijie Violet, Turin Christie Gloria, McCormick David Walter, Haas Christopher, and Constantine Gregory , CEN Case Rep, 2018 Oct 01, (2018)

Direct Observation of CO and CO by Oxidation of Oxalate within Nanogap of Scanning Electrochemical Microscope., Kai, Tianhan, Zhou Min, Johnson Sarah, Ahn Hyun S., and Bard Allen J. , J Am Chem Soc, 2018 Nov 28, Volume 140, Issue 47, p.16178-16183, (2018)

Conversion Chemistry of Cobalt Oxalate for Sodium Storage., Jo, Chang-Heum, Yashiro Hitoshi, Yuan Shuai, Shi Liyi, and Myung Seung-Taek , ACS Appl Mater Interfaces, 2018 Nov 28, Volume 10, Issue 47, p.40523-40530, (2018)

Functional eubacteria species along with trans-domain gut inhabitants favour dysgenic diversity in oxalate stone disease., Suryavanshi, Mangesh V., Bhute Shrikant S., Gune Rahul P., and Shouche Yogesh S. , Sci Rep, 2018 Nov 09, Volume 8, Issue 1, p.16598, (2018)

The Effect of Calcium and Vitamin B6 Supplementation on Oxalate Excretion in a Rodent Gastric Bypass Model of Enteric Hyperoxaluria., Espino-Grosso, Pedro, Monsour Christopher, and Canales Benjamin K. , Urology, 2018 Nov 06, (2018)

Modulation of calcium oxalate dihydrate growth by phosphorylated osteopontin peptides., Chien, Yung-Ching, Mansouri Ahmad, Jiang Wenge, Khan Saeed R., Gray Jeffrey J., and McKee Marc D. , J Struct Biol, 2018 Nov, Volume 204, Issue 2, p.131-144, (2018)

Inhibitory effects of taraxasterol and aqueous extract of Taraxacum officinale on calcium oxalate crystallization: in vitro study., Ghale-Salimi, Mahboubeh Yousefi, Eidi Maryam, Ghaemi Nasser, and Khavari-Nejad Ramezan Ali , Ren Fail, 2018 Nov, Volume 40, Issue 1, p.298-305, (2018)

Oxalate enhanced degradation of Orange II in heterogeneous UV-Fenton system catalyzed by FeO@γ-FeO composite., Dai, Huiwang, Xu Shuying, Chen Jianxin, Miao Xiaozeng, and Zhu Jianxi , Chemosphere, 2018 May, Volume 199, p.147-153, (2018)

Electrochemiluminescent competitive immunosensor based on polyethyleneimine capped SiO2 nanomaterials as labels to release Ru(bpy)32+ fixed in 3D Cu/Ni oxalate for the detection of aflatoxin B1., Wang, Yaoguang, Zhao Guanhui, Li Xiaojian, Liu Li, Cao Wei, and Wei Qin , Biosens Bioelectron, 2018 Mar 15, Volume 101, p.290-296, (2018)

CO oxidative coupling to dimethyl oxalate over Pd-Me (Me = Cu, Al) catalysts: a combined DFT and kinetic study., Han, Bingying, Feng Xue, Ling Lixia, Fan Maohong, Liu Ping, Zhang Riguang, and Wang Baojun , Phys Chem Chem Phys, 2018 Mar 07, Volume 20, Issue 10, p.7317-7332, (2018)

Colorimetric sensing of oxalate based on its inhibitory effect on the reaction of Fe (III) with curcumin nanoparticles., Pourreza, Nahid, Lotfizadeh Neda, and Golmohammadi Hamed , Spectrochim Acta A Mol Biomol Spectrosc, 2018 Mar 05, Volume 192, p.251-256, (2018)