TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

An alkaline metal oxide or hydroxide, soluble in water.  2, record 1, English, - alkali

Record number: 1, Textual support number: 1 OBS

Sodium bicarbonate is an example.  2, record 1, English, - alkali

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A deacidifying agent for food.  2, record 1, English, - alkali

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Most often used in the plural form "alkalis," as a collective term.  3, record 1, English, - alkali

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Hydroxyde d'un métal alcalin [...] qui se dissout dans l'eau pour former une solution alcaline [...]  3, record 1, French, - alcali

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On comprend aujourd'hui sous le nom d'alcalis les oxydes et les hydroxydes des métaux alcalins, notamment la soude et la potasse, ainsi que l'ammoniaque. [...] Les alcalis sont caractérisés par leur grande solubilité dans l'eau et par la solubilité de leurs sulfates et de leurs carbonates [...]  2, record 1, French, - alcali

Record number: 1, Textual support number: 1 OBS

Termes employés très souvent au pluriel, comme collectifs.  4, record 1, French, - alcali

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Désacidifiant pour denrées alimentaires.  5, record 1, French, - alcali

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Hidróxido metálico muy soluble en el agua, que se comporta como una base fuerte.  2, record 1, Spanish, - %C3%A1lcali

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Los álcalis, bases o hidróxidos poseen la propiedad fundamental de liberar aniones oxhidrilo (o hidroxilo) HO y de combinarse a los ácidos dando sales.  3, record 1, Spanish, - %C3%A1lcali

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Entre los álcalis más corrientes figuran la soda cáustica (hidróxido de sodio), amoníaco (hidróxido de amonio) y agua de cal (hidróxido de calcio).  4, record 1, Spanish, - %C3%A1lcali

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Enzymes immobilized on inorganic supports by covalent attachment show unique pH optimums, thermal profiles and kinetics. Organic functional groups are covalently attached to the support using a silane coupling agent.... The most common silane coupling agent used is [gamma]-aminopropyltriethoxy-silane. Silanes such as this react with any available oxide or hydroxide groups on the surface of glass, ceramics or metal oxides.... Once an alkylamine group has been attached to the inorganic support it takes only standard organic coupling reactions to covalently bond the protein of interest.  2, record 2, English, - silane%20coupling%20agent

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Une composition aqueuse de collage pour fibres optiques comprend un composant de formation de film polymère, au moins un agent de couplage de silane et au moins un lubrifiant.  1, record 2, French, - agent%20de%20couplage%20de%20silane

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A type of oxide characterized by the linkage of a metallic element or radical with the ion OH, such as brucite ...  2, record 3, English, - hydroxide

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If only a portion of the hydrogen of water is replaced by metal, the resulting compound is termed a "hydroxide"; thus, by the action of potassium on water, hydrogen is liberated and caustic potash KHO, potassium hydroxide, is formed.  3, record 3, English, - hydroxide

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

hydroxydes : Ensemble de minéraux disparates, principalement d'aluminium et de fer, se transformant en oxydes sous l'influence de la chaleur.  2, record 3, French, - hydroxyde

Record number: 3, Textual support number: 1 OBS

Quelques-uns sont de véritables hydroxydes et présentent, dans leurs structures, des groupes OH nettement établis.  2, record 3, French, - hydroxyde

Record 3,  Textual support,  Spanish

Record number: 3, Textual support number: 1 DEF

Combinación del agua con un óxido metálico.  2, record 3, Spanish, - hidr%C3%B3xido

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The salts of hydrochloric acid, known as chlorides, can, in most cases, be prepared by dissolving either the metal, its hydroxide, oxide, or carbonate in the acid; or by heating the metal in a current of chlorine, or by precipitation. The majority of the metallic chlorides are solids(stannic chloride, titanic chloride and antimony pentachloride are liquids) which readily volatilize on heating. Many are readily soluble in water, the chief exceptions being silver, chloride, mercurous chloride, cuprous chloride and palladious chloride which are insoluble in water, and thallous chloride and lead chloride which are only slightly soluble in cold water, but are readily soluble in hot water.  3, record 4, English, - metallic%20chloride

Record number: 4, Textual support number: 2 CONT

Chlorine induced corrosion is the most important corrosion process in power plants, firing waste, coal and/or biomass. Depending on the process, chlorine is present as HCl gas, as solid KCl and NaCl in ashes or as eutectic melts i.e. KCl-ZnCl₂ in deposits of waste fired boilers. In the presence of HCl gas and solid chlorides, "active oxidation" is generally accepted as the major corrosion mechanism. Metal chlorides are formed by inward diffusion of chlorine to the metal/oxide interface, evaporating and subsequently oxidized to non-protective oxides and additional chlorine.  4, record 4, English, - metallic%20chloride

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

Parfois [...] il se dépose des oxydes, sulfures et chlorures métalliques accompagnés de minéraux constituant la gangue [...]  3, record 4, French, - chlorure%20m%C3%A9tallique

Record number: 4, Textual support number: 1 OBS

Dans les dénominations de familles de composés, l'adjectif anglais «metallic» ou le terme anglais «metal» employé adjectivement se traduisent en français par «métallique» de préférence à «de métal». P. ex. : acétylures métalliques, azides métalliques, azotures métalliques, carbonoperoxoates métalliques, chlorures métalliques, cyanures métalliques, hydroxydes métalliques, hydrures métalliques, nitrates métalliques, sels métalliques, stéarates métalliques et sulfures métalliques (tournures plus naturelles que celles formées avec «de métal»). En revanche, lorsqu'il est nécessaire de préciser la nature du métal (métaux alcalins, métaux alcalino-terreux, métaux de transition, métaux des terres rares, métaux lourds, etc.), il est préférable, pour éviter toute ambiguïté, d'utiliser la locution «de métal». P. ex. : peroxydes de métaux de transition (et non «peroxydes métalliques de transition»), peroxydes de métaux alcalins (et non «peroxydes métalliques alcalins»).  2, record 4, French, - chlorure%20m%C3%A9tallique

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Sodium is the sixth most abundant element on earth, comprising about 2. 6% of the earth's crust; it is the most abundant of the alkali group of metals of which it is a member.... Sodium is a soft, bright, silvery metal which floats on water, decomposing it with the evolution of hydrogen and the formation of the hydroxide.... Metallic sodium is vital in the manufacture of sodamide and esters, and in the preparation of organic compounds. The metal may be used to improve the structure of certain alloys, to descale metal, to purify molten metals, and as a heat transfer agent.... Seventeen isotopes of sodium are recognized. Metallic sodium is, [on] a volume basis, the cheapest of all metals. Sodium metal should be handled with great care.  4, record 5, English, - metallic%20sodium

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... Argonne’s technology can successfully prepare for disposal some 60 tons of "sodium-bonded" fuel stored at the Idaho National Engineering and Environmental Laboratory (INEEL). This experimental reactor fuel contains metallic sodium, a highly chemically reactive material that presents disposal challenges. For example, metallic sodium reacts with water to produce explosive hydrogen gas and corrosive sodium hydroxide, both of which could create problems in a deep underground repository ...  5, record 5, English, - metallic%20sodium

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

Designed for water treatment applications including acid neutralization and heavy metal precipitation and stabilization in sludge, FloMag magnesium hydroxide powder(MHP) is a fine white powder processed from magnesium-rich brine. It can be added directly to the water or sludge as a powder or as slurry.  3, record 6, English, - magnesium%20hydroxide%20powder

Record number: 6, Textual support number: 2 CONT

Magnesium hydroxide powder. A finely divided, white, free flowing amorphous powder used in milk of magnesia, as well as in combination with aluminum hydroxides for antacid preparations.  4, record 6, English, - magnesium%20hydroxide%20powder

Record number: 6, Textual support number: 1 OBS

MHP: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion.  5, record 6, English, - magnesium%20hydroxide%20powder

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

Sediment contaminated with metals and PCBs, for example, might first be dewatered in preparation for a metal extraction process.  1, record 7, English, - metal%20extraction%20process

Record number: 7, Textual support number: 1 OBS

The Metanetix process is capable of selective and nonselective extraction of heavy metals. The process solubilizes metals bound to the contaminated solid matrix and then extracts the metal ions(hydroxide, oxide) from solution using chelating agents.  1, record 7, English, - metal%20extraction%20process

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

[...] dans les cas d'une contamination des sédiments par des métaux lourds et des substances organiques (BPC, par exemple), il pourrait être intéressant de déshydrater les sédiments pour les conditionner pour un traitement d'extraction des métaux.  1, record 7, French, - proc%C3%A9d%C3%A9%20d%27extraction%20des%20m%C3%A9taux

Record number: 7, Textual support number: 1 OBS

Le procédé Métanétic permet d'extraire de façon sélective ou non sélective les métaux lourds. Les étapes principales du procédé sont la dissolution par acidification des métaux liés aux matrices solides contaminées et l'extraction des ions métalliques (hydroxyde, oxyde) de la solution en utilisant des chélateurs.  1, record 7, French, - proc%C3%A9d%C3%A9%20d%27extraction%20des%20m%C3%A9taux

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

The process for dechlorinating chlorinated aromatics such as polychlorinated biphenyls(PCBs) entrained in soil... involves use of a particular rotary kiln processor and a dechlorinating reagent derived from the reaction of alkali metal hydroxide and a glycolate, preferably polyethylene glycol.  1, record 8, English, - alkali%20metal%20hydroxide

Record number: 8, Textual support number: 2 CONT

In the presence of an alkali hydroxide, chlorine is reduced to the chloride ion by hydrogen peroxide, and the excess alkali hydroxide is back-titrated with acid.  3, record 8, English, - alkali%20metal%20hydroxide

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Le procédé [de décolonisation des aromatiques chlorurés comme les biphényles polychlorés] implique l'utilisation d'un processeur particulier de four rotatif et d'un agent de décolonisation dérivé de la réaction d'un hydroxyde alcalin de métal et d'un glycol, de préférence un glycol polyéthylène.  2, record 8, French, - hydroxyde%20alcalin

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

The main types of solids suspended in a sludge can be classified qualitatively as follows :... flocculated or jellified matter, often originating from colloidal particle(organic or mineral), containing a large volume of bound water, of low specific mass(metal hydroxide floc, biological floc, with a high protein content) ;...  1, record 9, English, - jellified%20matter

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

On peut classer qualitativement les principales matières en suspension présentes dans une boue, en : [...] matières floculées ou gélifiées provenant souvent des particules colloïdales (organiques ou minérales), englobant un important volume d'eau liée, de masse volumique réduite (flocs d'hydroxydes métalliques, flocs biologiques à haute teneur en protéines) [...]  1, record 9, French, - mati%C3%A8re%20g%C3%A9lifi%C3%A9e

Record 9,  Textual support,  Spanish