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Dichloromethane (DCM, methylene chloride, or methylene bichloride) is an organochlorine compound with the formula C H 2 Cl 2. This colorless, volatile liquid with a chloroform -like, sweet odor is widely used as a solvent .
The most important is dichloromethane, which is mainly used as a solvent. Chloromethane is a precursor to chlorosilanes and silicones . Historically significant (as an anaesthetic), but smaller in scale is chloroform, mainly a precursor to chlorodifluoromethane (CHClF 2 ) and tetrafluoroethene which is used in the manufacture of Teflon.
Environmental chemistry is used by the Environment Agency in England, Natural Resources Wales, the United States Environmental Protection Agency, the Association of Public Analysts, and other environmental agencies and research bodies around the world to detect and identify the nature and source of pollutants. These can include:
The benefits of SOM result from several complex, interactive, edaphic factors; a non-exhaustive list of these benefits to soil function includes improvement of soil structure, aggregation, water retention, soil biodiversity, absorption and retention of pollutants, buffering capacity, and the cycling and storage of plant nutrients.
January 2019 - subscribed project to article alerts. May 2016 - started Template:Soil science topics; May 2010 - template:Infobox soil has been created by Chiton magnificus. Feel free to modify it and to add it to soil articles. April 2008 - Two public domain soil profile photographs, uploaded by briefly active User:Jimjet, deleted as unsourced ...
A Stagnosol in the World Reference Base for Soil Resources (WRB) is soil with strong mottling of the soil profile due to redox processes caused by stagnating surface water. Stagnosol (Ah-Bg1-Bgc-Bg2) showing pooled water. Stagnosols are periodically wet and mottled in the topsoil and subsoil, with or without concretions and/or bleaching.
In other projects Wikidata item; Appearance. ... for this chemical from a reliable source and follow its directions. ... log 10 of Dichloromethane vapor pressure.
Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste .