Métaldéhyde
The métaldéhyde is a active substance of Produit plant health (or Produit phytopharmacological, or Pesticide), which presents an effect Molluscicide, and which is employed to kill out of the Limace S and others Gastéropode S. Chemically the métaldéhyde is a cyclic Polymère of Acétaldéhyde, with the name of IUPAC: r-2, c-4, c-6, c-8-tétramethyl-1,3,5,7-tétroxocane. The acetaldehyde being a liquid with weak Not boiling (21 °C), it is replaced in certain chemical reactions by one of its cyclic polymers, the métaldéhyde or the Paraldéhyde (trimère cyclic of acetaldehyde). With room temperature, the métaldéhyde is a solid of color blanchâtre.
It is sold under various trademarks such as for example Antimilice, Ariotox, Cekumeta, Deadline, Halizan, Limatox, Limeol, Meta, Metason, Mifaslug, Namekil …
The métaldéhyde is a compound very Toxique including for the Man. It generally is used in the form of compressed and it is thus advisable to avoid introducing it. It is moreover flammable.
From a toxic point of view, its action is badly known. Indeed, although it is easily hydrolized in Acétaldéhyde in particular and that the acetaldehyde is a well-known Neurotoxique, the effects on the organization of métaldéhyde do not correspond to those of acetaldehyde. It will be noticed however that this action exists however in addition to others a such effect irritating well marked. The most marked effects are a kind of intoxication and a hypersalivation.
More generally, the metaldéhyde is a Aldéhyde i.e. a compound of formula R-CHO, cyclic form and whose 2nd substituent is in position méta on polymer R. In the position méta the substituents are related to adjacent carbons on cyclic polymer.
External bond
- WHO/FAO Dated sheet At inchem.org
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