oxalic acid

 Oxalic acid index parameters:

Oxalic acid Introduction and Physicochemical Properties:

Scientific name: oxalic acid, is the most simple dibasic acid.

Molecular formula: C2H2O4

Properties:

Anhydrous oxalic acid is a colorless or odorless transparent crystal or white powder. poisonous. Soluble in water, alcohol and ether. Dihydrate is also a colorless crystal. The specific gravity of 1.653, the melting point of 101 ° C in the dry air or heating loss of water into a white powder. Oxalic acid is a dicarboxylic acid of organic acids, also one of the strong acids in organic acids. And concentrated sulfuric acid role is the loss of water, broken down into carbon dioxide and carbon monoxide. Oxalic acid is also reducing, and oxidants are easily oxidized into carbon dioxide and water, and alkali from the role in the formation of oxalate.

Oxalic acid Uses:

In the chemical industry, oxalic acid is widely used in starch hydrolysis production of pure dextrin and glucose production; production of hydroquinone, pentaerythritol, all kinds of oxalate, oxalate, salt-based green, polyvinyl chloride, amino plastic , Paint films and other chemical products and refined oil.

In the pharmaceutical industry, used in the manufacture of chlortetracycline, oxytetracycline, tetracycline, streptomycin, vitamin B12, calcium pantothenate, borneol, mephedrine and other drugs. Oxalic acid derivative glyoxylic acid for the production of spices and drugs.

In the printing and dyeing industry and textile industry, used to replace acetic acid, as fast-dye dyes of the coloring agent, dyeing auxiliaries, knitted fabrics and refined cotton bleaching agent, washed iron agent.

In the metallurgical industry, the film used to produce carbon rods, refining high-purity nickel, rare earth metal smelting as a metal precipitator (such as by the phosphorus, ornaments, lanthanum ore extraction of thorium and cerium).

In the motor industry, for the production of tungsten alloy steel. In the leather industry for leather oil treatment. In the oil chemistry for terpineol, glycerol and stearic acid lipid refining. In addition, oxalic acid is also used in aluminum alloy film processing, carbide manufacturing, alloy cutter head, and for steel, soil analysis reagents.

Oxalic acid the largest amount of industry is the pharmaceutical industry and rare earth refining.

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