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Oxalate (systematic IUPAC name: ethanedioate) is an anion with the chemical formula C 2 O 2− 4. This dianion is colorless. It occurs naturally, including in some foods. It forms a variety of salts, for example sodium oxalate (Na 2 C 2 O 4), and several esters such as dimethyl oxalate ((CH 3) 2 C 2 O 4). It is a conjugate base of oxalic acid.
Oxaloacetic acid (also known as oxalacetic acid or OAA) is a crystalline organic compound with the chemical formula HO 2 CC(O)CH 2 CO 2 H. Oxaloacetic acid, in the form of its conjugate base oxaloacetate, is a metabolic intermediate in many processes that occur in animals.
In enzymology, an oxaloacetase (EC 3.7.1.1) is an enzyme that catalyzes the chemical reaction: [1] oxaloacetate + H 2 O ⇌ {\displaystyle \rightleftharpoons } oxalate + acetate Thus, the two substrates of this enzyme are oxaloacetate and H 2 O , whereas its two products are oxalate and acetate .
Oxalic acid is an organic acid with the systematic name ethanedioic acid and chemical formula HO−C(=O)−C(=O)−OH, also written as (COOH) 2 or (CO 2 H) 2 or H 2 C 2 O 4.It is the simplest dicarboxylic acid.
[14] [15] In 2015, they caused about 16,000 deaths worldwide. [16] Some of the oxalate in urine is produced by the body. Calcium and oxalate in the diet play a part but are not the only factors that affect the formation of calcium oxalate stones. Dietary oxalate is an organic ion found in many vegetables, fruits, and nuts.
formula system space group unit cell Å volume density comment ref lithium sulfate monohydrate oxalate ? triclinic P1 a = 3.4014 b = 5.0397 c = 6.120 α = 78.62° β= 84.95° γ = 81.14° 101.45 band gap 4.57 eV dielectric constant 29.7 stable below 83 °C piezoelectric coefficient 6pC/N [3] homopiperazinium dimagnesium dioxalate sulfate dihydrate
The carbonate oxalates are mixed anion compounds that contain both carbonate (CO 3) and oxalate (C 2 O 4) anions. Most compounds incorporate large trivalent metal ions, such as the rare earth elements. Some carbonate oxalate compounds of variable composition are formed by heating oxalates. [1]
An oxalate nitrate is a chemical compound or salt that contains oxalate and nitrate anions (NO 3-and C 2 O 4 2-). These are mixed anion compounds . Some have third anions.
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