Oxalic acid, namely oxalic acid, is one of the simplest organic dibasic acids, and its structure is simple HOOCCOOH. Colorless transparent crystal, melting point 10 1- 102℃, relative density 1.653, soluble in ethanol, soluble in water, slightly soluble in ether, insoluble in benzene and chloroform. Common oxalic acid usually contains two molecules of crystal water (H2C2O4 2H2O, CAS number is 6 153-56-6).
The role of oxalic acid
1, used to produce antibiotics, borneol and other drugs, as well as solvents, dye reducers, tanning agents and so on. Refining rare metals. It can also be used in the production of Co-Mo-Al catalyst, the cleaning of metal and marble and the bleaching of textiles.
2. The organic synthesis industry is mainly used to produce hydroquinone, pentaerythritol, cobalt oxalate, nickel oxalate and other chemical products. The plastic industry is used to produce PVC, aminoplast, urea-formaldehyde plastic and pigment flakes.
3. Oxalic acid can be used to remove rust. But be careful when using, oxalic acid is very corrosive to stainless steel. High concentration of oxalic acid is also easy to corrode hands, and the acid oxalate produced has great solubility, but it is toxic to some extent.
Refer to the above content: Baidu Encyclopedia-Oxalic Acid