Views: 0 Author: Site Editor Publish Time: 2024-01-02 Origin: Site
Oxalic acid is an organic compound with the chemical formula H ₂ C ₂ O ₄. It is a metabolite of living organisms and is a strong acid. It is widely distributed in plants, animals, and fungi and plays different functions in different living organisms. Research has found that over a hundred types of plants are rich in oxalic acid, with spinach, amaranth, sugar beet, purslane, taro, sweet potato, and rhubarb having the highest content. The industrial production methods of acid mainly include sodium formate method, oxidation method, carbonyl synthesis method, ethylene glycol oxidation method, propylene oxidation method, and carbon monoxide coupling method.Let's explain in detail the uses and hazards of oxalic acid from two aspects.
Here is the content list:
lThe main purpose
lThe hazards and precautions during use:
1.The main purpose：
Oxalic acid can be used as a reducing agent, bleaching agent, dyeing aid, regulator, additive, etc. .
First. Oxalic acid is mainly used in the production of antibiotics and drugs such as borneol, as well as solvents for extracting rare metals, dye reducing agents, tanning agents, etc. In addition, oxalic acid can also be used to synthesize various oxalate esters, oxalates, and oxalamides, among which diethyl oxalate, sodium oxalate, calcium oxalate, and other products have the highest yield. Oxalic acid can also be used in the production of cobalt molybdenum aluminum catalysts, cleaning of metals and marble, and bleaching of textiles. An acidity regulator used for synthesizing adhesives such as urea formaldehyde resin and melamine formaldehyde resin. The pharmaceutical industry is used to manufacture drugs such as oxytetracycline and aureomycin.
Second. Mainly used as a reducing agent and bleaching agent, as a mordant in the printing and dyeing industry, and also for extracting rare metals, synthesizing various oxalates, oxalates, and oxalamides.
Third. Used as an acidity regulator for synthesizing adhesives such as urea formaldehyde resin and melamine formaldehyde resin. Polyvinyl formaldehyde water-soluble adhesive can also be added to improve drying speed and bonding strength. As an important organic synthesis raw material, it is used to produce various products such as oxalates, oxalates, oxalamides, hydroquinone, pentaerythritol, and gallic acid. The pharmaceutical industry is used to manufacture drugs such as chloramphenicol, tetracycline, streptomycin, borneol, vitamin B12, and phenobarbital. Used in the printing and dyeing industry as a coloring aid and bleaching agent. The plastic industry is used to produce polyvinyl chloride, amino plastics, and urea formaldehyde plastics. The metallurgical industry is used to produce high-purity nickel, carbon rods, and precipitated rare earth metals. It is also used as a metal washing agent, tanning agent, chelating agent, catalyst, anaerobic adhesive and polymerization inhibitor for acrylic fast setting adhesive, rust removal agent for machining, electroplating complexing agent, wood bleaching, marble cleaning, and oil refining.
Fourth. Can be used as an additive in shampoo in cosmetics, mainly used in the manufacturing of chemical industry products; Used in the pharmaceutical industry to manufacture antibiotics and other drugs; Widely used in the printing and dyeing industry and leather industry; Used as a refining agent for terpineol, glycerol, and stearate esters in oleochemistry; In addition, it has applications in aluminum product processing and hard alloy production.
2.The hazards of oxalic acid and precautions during use:
Oxalic acid is not easily oxidized and broken down in the human body. It is a product formed by metabolism and belongs to acidic substances. It can cause an imbalance of acidity and alkalinity in the human body, and excessive consumption can also lead to poisoning.
Moreover, if oxalic acid encounters calcium and zinc in the human body, it generates calcium oxalate and zinc oxalate, which are difficult to absorb and are excreted from the body, affecting the absorption of calcium and zinc.
Excessive intake of oxalic acid can also cause stones.