Organotin compounds are metal organic compounds formed by the direct combination of tin and carbon elements. The main uses are: as catalysts (dibutyltin, stannous octoate), stabilizers (such as dimethyl tin, dioctyl tin, tetraphenyl tin), agricultural insecticides, fungicides (such as dibutyl tin, tributyl tin, triphenyl tin), and coatings and antifungal agents for daily necessities, etc. 1. Organotins are mainly used as fungicides and plastic stabilizers2. Because of the extensive use of organotins, many reports of related poisoning cases can be seen, and because of the strong neurotoxicity of organotins, poisoners are easily mistaken for mental illness and cases of delayed treatment also occur frequently. Organotin compounds have some important chemical and application roles, the following are some typical examples:
1. Organic synthesis catalysts: Some organotin compounds have important catalytic functions, for example, they are used as catalysts in the synthesis of acrylonitrile in industrial production, or in organic synthesis Catalysts used in organic chemical reactions, such as tin acetylacetone, tin alkylate, and tributyltin.
2. Metalorganic chemical reagents: Many organotin compounds have properties as metalorganic chemical reagents, such as organotin oxides and organotin halides.
3. Antifungal agents and preservatives: Some organotin compounds with antibacterial and fungicidal effects are widely used in wood preservation, paint and plastic material protection, Such as hexamethylbis(bisphenoxy)tin, hexa(tert-butyl)tin and hexa(trimethyloxy)tin.
4. Heat stabilizers and light stabilizers: Some organotin compounds are widely added to materials made of thermoplastics, paints, rubber, etc. as heat stabilizers and light stabilizers In order to improve the heat resistance and light resistance of these materials.
Although organotin compounds are widely used, they also have potential environmental and health problems, so their use and discharge need to be strictly controlled and managed.
