oxides
21Oxide — Oxides, such as iron(III) oxide or rust, which consists of hydrated iron(III) oxides Fe2O3·nH2O and iron(III) oxide hydroxide (FeO(OH), Fe(OH)3), form when oxygen combines with other elements An oxide ( …
22Оксиды — [oxides] соединение химического элемента с кислородом. По химическим свойствам все оксиды делятся на солеобразующие (например, Na2O, MgO, Al2O3, SiO2, P2O5, SO3, Cl2O7) и несолеобразующие (например, СО, N2O, NO, H2O). Солеобразующие оксиды… …
23NOx — Oxides of nitrogen. They are at their worst when combustion is most efficient. They are produced because the air is 78 percent nitrogen. Combines with HC in sunlight to form photochemicalsmog. NOx emissions can be reduced by lowering peak… …
24oxide — oxidic /ok sid ik/, adj. /ok suyd, sid/, n. Chem. a compound in which oxygen is bonded to one or more electropositive atoms. Also, oxid /ok sid/. [1780 90; < F (now oxyde), b. oxygène and acide. See OXYGEN, ACID] * * * I Any of a large and… …
25rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
26Amine oxide — General structure of an amine oxide An amine oxide, also known as amine N oxide and N oxide, is a chemical compound that contains the functional group R3N+ O−, an N O bond with three additional hydrogen and/or hydrocarbon side chains attached to… …
27Oxocarbon — An oxocarbon or oxide of carbon is an inorganic compound consisting only of carbon and oxygen.[1][2] The simplest and most common oxocarbons are carbon monoxide (CO) and carbon dioxide (CO2). Many other stable or metastable oxides of carbon are… …
28Flux (metallurgy) — Rosin used as flux for soldering A flux pen used f …
29metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
30environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …
