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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).
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]
It consists of ammonium cations ([NH 4] +) and oxalate anions (C 2 O 2− 4). The structure of ammonium oxalate is ([NH 4] +) 2 [C 2 O 4] 2−. Ammonium oxalate sometimes comes as a monohydrate ([NH 4] 2 C 2 O 4 ·H 2 O). It is a colorless or white salt under standard conditions and is odorless and non-volatile. It occurs in many plants and ...
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Ferrous oxalate (iron(II) oxalate) refers to inorganic compounds with the formula FeC 2 O 4 (H 2 O) x where x is 0 or 2. These are orange compounds. These are orange compounds. Characteristic of metal oxalate complexes , these compounds tend to be polymeric , hence their low solubility in water.
Lanthanum(III) oxalate forms colorless crystals that are poorly soluble in water. [3] The compound forms various crystallohydrates La 2 (C 2 O 4) 3 •n H 2 O, where n = 1, 2, 3, 7, and 10. [4] [5] The crystallohydrates decompose when heated. [6]
Tin(II) oxalate is an inorganic compound, a salt of tin and oxalic acid with the chemical formula SnC 2 O 4. [2] The compound looks like colorless crystals, does not dissolve in water, and forms crystalline hydrates.
An oxalate chloride or oxalato chloride is a mixed anion compound contains both oxalate and ... loses water over 205°C; refract: α=1.500 β=1.545 γ=1.568 2V=71 ...