Oxalic Acid For Sale

Oxalic acid: History, application, and where to buy Oxalic Acid For Sale

Oxalic acid is an organic acid with the systematic name ethanedioic acid which has the chemical formula HO−C(=O)−C(=O)−OH. It is also written as H2C2O4, (COOH)2, or (CO2H)2. This dicarboxylic acid is the most basic. As a white crystalline substance, it dissolves colorlessly in water. Oxalic Acid For Sale

Its name comes from early researchers who isolated oxalic acid from flowering plants of the genus Oxalis, commonly known as wood-sorrels. Oxalic acid is found naturally in many foods, and excessive consumption or prolonged skin contact can be risky.

Usually found as the dehydrate, oxalic acid is a reducing agent with a much higher acid strength than acetic acid. Its conjugate bases, oxalate, and hydrogen oxalate are chelating agents for metal cations. They are used as a cleaning agent, particularly for rust removal, because they form a water-soluble ferric iron complex, the ferrioxalate ion.

History 

At least since 1745, when Dutch physician and botanist Herman Boerhaave isolated a salt from wood sorrel using a method similar to the kraft process, people have known that oxalic acid salts could be made from plants. By 1773, oxalic acid was separated from its salt in sorrel by François Pierre Savary of Fribourg, Switzerland.

By 1784, Scheele had demonstrated the identical nature of “sugar acid” and naturally occurring oxalic acid. De Morveau, Lavoisier, and others first used the current term in 1787, along with numerous other acid names. 

Friedrich Wöhler, a German chemist, produced oxalic acid in 1824 by reacting cyanogen and ammonia in an aqueous solution. This attempt might be the first time a natural substance has been synthesized.

Applications

The primary uses of oxalic acid are in cleaning and bleaching, particularly in eliminating rust. Because it forms a stable, water-soluble salt with ferric iron and ferrioxalate ions, it is useful in rust removal agents. Oxalic acid is also an ingredient in some tooth-whitening products. 

In dyeing processes, about 25% of the oxalic acid produced is used as a mordant. Additionally, it is utilized in baking powder, as a third reagent in silica analysis instruments, and bleaches, particularly for feathers, pulpwood, straw, cork, cane, and other cleaning purposes. 

Semiconductor industry 

The electronic and semiconductor industries also make use of Oxalic acid. In 2006, it was reported to be used in the electrochemical–mechanical planarization of copper layers in the fabrication process of semiconductor devices. 

Niches

 A honeybee covered in crystals of oxalate.  Some beekeepers employ oxalic acid as a miticide to combat the parasitic varroa mite. Light-colored ceramics can be made by removing iron from clays like kaolinite using diluted solutions (0.05–0.15 M) of oxalic acid.

Oxalic acid can be used to clean minerals like many other acids, such as pyrite and quartz crystals. Oxalic acid is occasionally used in the aluminum anodizing process, with or without sulfuric acid. The coatings produced are thinner and have a lower surface roughness than sulfuric-acid anodizing.

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