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(organic chemistry)
Salt of oxalic acid; contains the (COO)2 radical; examples are sodium oxalate, Na2C2O4, ammonium oxalate, (NH4)2C2O4·H2O, and ethyl oxalate, C2H5(C2O4)C2H5.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



any acidic or neutral salt of oxalic acid, for example, HOOC—COOK and NaOOC—COONa.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The kidney stone analysis can be done by, spectroscopy, X-ray diffraction, chemical analysis by semi-quantitative titrimetric and calorimeter method, mass spectrometry and laser-induced breakdown spectroscopy, employed according to feasibility or resources.2,3 Recently, a study conducted in the Eastern Province of Saudi Arabia reported that the prevalence of calcium oxalate stones was 74.2%, uric acid stones 12.8% and mixed calcium oxalate/phosphate/uric acid stones 10.4%.4 The present study was aimed to analyze the chemical composition of urinary calculi in the Northern Border Region of Saudi Arabia and to propose recommendations for their prevention.
Isolation and identification of oxalate oxidase producing bacteria
Also, because acidity favours the growth of wood rotting fungi, the precipitation of CaOx either can be seen to remove the oxalate anion ([C.sub.2][O.sub.4.sup.2=]) as a source of base or to displace protons from oxalic acid ([H.sub.2][C.sub.2][O.sub.4]).
Dietary calcium helps limit your body's absorption of oxalate, and low dietary calcium has been found to increase the risk of calcium oxalate stones.
Ngolui, "Averrhoa carambola: a renewable source of oxalic acid for the facile and green synthesis of divalent metal (Fe, Co, Ni, Zn, and Cu) oxalates and oxide nanoparticles," Journal of Applied Chemistry, vol.
The doctor will also order tests to look for unusual levels of chemicals such as calcium, oxalate, magnesium, and sodium in the blood and urine to help design a prevention strategy.
Lodi states that "every plant, green and otherwise (including spinach) has abundant magnesium and calcium and potassium." Unfortunately, none of the calcium in spinach or other high-oxalate plants is bioavailable, since it is strongly bound to oxalates. Furthermore, the average oxalate value of spinach is 7.5 times its calcium content, making spinach a very poor choice for someone to maintain adequate calcium stores.
We contacted Michael Liebman, PhD, a professor at the University of Wyoming, who has done research on the oxalate content of foods.
*Increased risk is seen when there is low urine volume, consumption of foods rich in oxalate and or uric acid, excessive consumption of animal protein and sodium and high acidic pH of foods.
Iced tea contains high concentrations of oxalate, one of the key chemicals that lead to the formation of kidney stones, a common disorder of the urinary tract.
"Oxalates are found in excess in tea and coffee, spinach, tomato, mango and strawberries.