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In organic chemistry, ethoxylation is a chemical reaction in which ethylene oxide (C 2 H 4 O) adds to a substrate. It is the most widely practiced alkoxylation, which involves the addition of epoxides to substrates. In the usual application, alcohols and phenols are converted into R(OC 2 H 4) n OH, where n ranges from 1 to 10. Such compounds ...
The usual manifestation of this reaction is ethoxylation of alcohols (ROH), in which case ethylene oxide is the alkoxylating agent: ROH + C 2 H 4 O → ROCH 2 CH 2 OH. Another industrially significant epoxide is propylene oxide (PO, OCH 2 CHCH 3). PO is mainly used for alkoxylation to produce polyether polyols.
Narrow-range ethoxylates (NREs) in chemistry are fatty alcohol polyglycol ethers with a narrow homolog distribution and are known nonionic surfactants.They can be produced industrially, for example, by the addition of ethylene oxide onto fatty alcohols in the presence of suitable catalysts (layer compounds which have been calcined or hydrophobized with fatty acids).
For example, there might be local Labrador Retriever rescue groups, hunting dog rescue groups, large-dog rescue groups, as well as general dog rescue groups. Animal rescue organizations have also been created to rescue and rehabilitate wild animals, such as lions, tigers, and cheetahs; a job which is normally shared or backed by zoos and other ...
TPEG is produced by ethoxylation of trimethylolpropane. [1] Applications. TPEG is used in the production of polyurethane foams, elastomers, and sealants. [1]
Animal-assisted therapy is an alternative or complementary type of therapy that includes the use of animals in a treatment. [4] [5] It falls under the realm of animal-assisted intervention, which encompasses any intervention in the studio that includes an animal in a therapeutic context such as emotional support animals, service animals trained to assist with daily activities, and animal ...
Animal euthanasia (euthanasia from Greek: εὐθανασία; "good death") is the act of killing an animal humanely, most commonly with injectable drugs.Reasons for euthanasia include incurable (and especially painful) conditions or diseases, [1] lack of resources to continue supporting the animal, or laboratory test procedures.
Advanced meat recovery (AMR) is a slaughterhouse deboning process by which the last traces of skeletal muscle meat are removed from animal bones after the primal cuts have been carved off manually. The machinery used in this process separates meat from bone by scraping, shaving, or pressing the meat from the bone without breaking or grinding ...