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The phosphotungstate anion, an example of a polyoxometalate. In chemistry, a polyoxometalate (abbreviated POM) is a polyatomic ion, usually an anion, that consists of three or more transition metal oxyanions linked together by shared oxygen atoms to form closed 3-dimensional frameworks.
POM is readily decomposable, serving many soil functions and providing terrestrial material to water bodies. It is a source of food for both soil organisms and aquatic organisms and provides nutrients for plants. In water bodies, POM can contribute substantially to turbidity, limiting photic depth which can suppress primary productivity.
Once paraformaldehyde is depolymerized, the resulting formaldehyde may be used as a fumigant, disinfectant, fungicide, and fixative.Longer chain-length (high molecular weight) polyoxymethylenes are used as a thermoplastic and are known as polyoxymethylene plastic (POM, Delrin).
The POM radical has the formula (CH 3) 3 C-CO-O-CH 2. The POM group is also sometimes used to produce prodrugs . For example, the POM group can be attached to a negatively charged organophosphate group(s) of a drug causing a neutralization of the negative charge, which can allow the drug to become more lipid-soluble and thus more able to ...
Tiki, a 20-year-old blind cat from New England, was rescued by Good Samaritans after floating on a piece of ice on a Massachusetts lake and falling in on Dec. 16, 2024.
Conceptual questions or conceptual problems in science, technology, engineering, and mathematics (STEM) education are questions that can be answered based only on the knowledge of relevant concepts, rather than performing extensive calculations. They contrast with most homework and exam problems in science and engineering that typically require ...
MEXICO CITY (Reuters) -Mexican President Claudia Sheinbaum on Tuesday warned U.S. President-elect Donald Trump of dire economic consequences for both countries from tariffs and suggested possible ...
Health officials in Europe are investigating Ozempic and the trendy drug’s possible link to an eye-rotting condition that causes blindness. On Dec. 17, the European Medicines Agency announced ...
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