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Honeybee coated with oxalate crystals. Oxalic acid is used by some beekeepers as a miticide against the parasitic varroa mite. [52] Dilute solutions (0.05–0.15 M) of oxalic acid can be used to remove iron from clays such as kaolinite to produce light-colored ceramics. [53] Oxalic acid can be used to clean minerals like many other acids.
Manganese oxalate is a chemical compound, a salt of manganese and oxalic acid with the chemical formula MnC 2 O 4. [2] [3] The compound creates light pink crystals, does not dissolve in water, and forms crystalline hydrates. [4] It occurs naturally as the mineral Lindbergite. [5]
Acetylated wood is a type of modified wood that is produced through a chemical modification process and does not contain any toxic substances. [1] It produced from a chemical reaction (named as acetylation), involving acetic anhydride and a modification process to make wood highly resistant to biological attacks by fungi and wood-boring insects and durable to environmental conditions.
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 an ammonium salt of oxalic acid. 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 ...
This formulation is still manufactured today. It was invented by chemist George William Hoffman in Indianapolis, Indiana. The product was originally sold to bars in Indianapolis and Hoffman asserted in a patent application that the name had been used since January, 1887. [6] [7] The formula contains oxalic acid as a primary ingredient. [8] [9]
Calcium oxalate crystals are commonly found in lichens, where they occur in two mineral forms: weddellite (CaC 2 O 4 ·(2+x)H 2 O) and whewellite (CaC 2 O 4 ·H 2 O). These crystals can form both on the surface of the lichen as a powdery coating called pruina and within the internal structures of the lichen thallus. The type and distribution of ...
Barium oxalate is a chemical compound with the chemical formula Ba C 2 O 4.It is a barium salt of oxalic acid.It consists of barium cations Ba 2+ and oxalate anions C 2 O 2− 4.It is a white odorless powder that is sometimes used as a green pyrotechnic colorant generally in specialized pyrotechnic compositions containing magnesium metal powder.
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