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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.
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.
In enzymology, an oxaloacetase (EC 3.7.1.1) is an enzyme that catalyzes the chemical reaction: [1]. oxaloacetate + H 2 O 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 typically occurs as the dihydrate with the formula H 2 C 2 O ... mediated formation of oxalate. In one pathway, oxaloacetate, ... Oxalate is known to ...
Sodium oxalate, or disodium oxalate, is a chemical compound with the chemical formula Na 2 C 2 O 4. It is the sodium salt of oxalic acid. It contains sodium cations Na + and oxalate anions C 2 O 2− 4. It is a white, crystalline, odorless solid, that decomposes above 290 °C. [2]
Calcium oxalate (in archaic terminology, oxalate of lime) is a calcium salt of oxalic acid with the chemical formula CaC 2 O 4 or Ca(COO) 2. It forms hydrates CaC 2 O 4 ·nH 2 O, where n varies from 1 to 3. Anhydrous and all hydrated forms are colorless or white.
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[4] nickel oxalate can also be formed in to various nanorods and nanofibres by use of surfacants. [5] When heated nickel oxalate dihydrate dehydrates at 258° and decomposes to Ni metal [6] over 316 °C. [7] Double oxalate salts where oxalate is a ligand on the nickel atom may be called oxalatonickelates.