Methyl chloride microorganisms

Active agents vary according to use. For controlling bad breath, 2iac salts, sodium lauryl sulfate, and flavors are used. To destroy oral microorganisms, chlorhexidine, cetylpyridinium chloride [123-03-5] and ben2alkonium chloride [68391-01-5] are valuable. Essential oils, such as thymol [89-83-8] eucalyptol [470-82-6] menthol, and methyl salicylate [119-36-8] reduce plaque-related gingivitis (see Oils, essential). Sodium fluoride aids ia caries coatrol. 

Such xenobiotics as aliphatic hydrocarbons and derivatives, chlorinated ahphatic compounds (methyl, ethyl, methylene, and ethylene chlorides), aromatic hydrocarbons and derivatives (benzene, toluene, phthalate, ethylbenzene, xylenes, and phenol), polycyclic aromatic hydrocarbons, halogenated aromatic compounds (chlorophenols, polychlorinated biphenyls, dioxins and relatives, DDT and relatives), AZO dyes, compounds with nitrogroups (explosive-contaminated waste and herbicides), and organophosphate wastes can be treated effectively by aerobic microorganisms. 

Soil Degradation products identified in an upland soil after 80 days of incubation included 7-ethyl-l-hydroxyacetyl-2,3-dihydroindole, 8-ethyl-2-hydroxy-l-(methyl-methoxy)-1,2,3,4-tetrahydroquinone, 2, 6 -diethyl-2-hydroxy-A-(methoxymethyl)aceta-nilide and 9-ethyl-1,5-dihydro-1 -(methoxymethyl)-5-methyl-1,4-benzoxazepin-2-(37/)-one (Chou, 1977). In an upland soil, the microorganism Rhizoctonia solani degraded alachlor to unidentified water soluble products (Lee, 1986). Degradation of alachlor by soil fungi gave 2-chloro-2, 6 -diethylacetanilide, 2,6-diethylaniline, 1-chloroacety 1-2,3-dihydro-7-ethylindole, 2, 6 -diethyl-A-methoxymethylaniline and chloride ions (Tiedje and... 

In laboratory experiments, microorganisms in sediments from lakes are able to convert lead chloride, lead nitrate, and trimethyllead acetate to Me4Pb, and bacterial strains isolated from Lake Ontario seem to be able to convert trimethyllead acetate, but not Pb(II) salts, into tetramethyl-lead (Wong et ah 1975). The formation of Me4Pb from MegPbX is presumably not solely due to biological methylation, but also to chemical disproportionation ( Jarvie et al, 1975, Schmidt and Huber 1976) ... 

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