TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

SOLIDE ADSORBANT [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-03-11

English

Subject field(s)
  • Environmental Studies and Analyses
  • Air Conditioning and Heating
  • Chemistry
DEF

A material which has the ability to cause molecules of gases, liquids, or solids to adhere to its internal surfaces without changing the adsorbent physically or chemically.

CONT

Solids that are used to adsorb gases or dissolved substances are called adsorbents; the adsorbed molecules are usually referred to collectively as the adsorbate.

OBS

Certain solid materials, such as silica gel and activated alumina, have this property.

French

Domaine(s)
  • Études et analyses environnementales
  • Conditionnement de l'air et chauffage
  • Chimie
DEF

Substance solide capable de retenir à sa surface, sans s’en imprégner, des molécules gazeuses ou en solution.

OBS

Les adsorbants les plus utilisés sont : - le charbon actif obtenu par chauffage du bois [...] - les adsorbants polaires du type oxyde tels que le gel de silice et l’alumine activée.

PHR

Transfert d’électrons entre l’adsorbat et l’adsorbant.

Spanish

Campo(s) temático(s)
  • Estudios y análisis del medio ambiente
  • Acondicionamiento de aire y calefacción
  • Química
DEF

Sustancia capaz de adsorber.

Save record 1

Record 2 2009-03-11

English

Subject field(s)
  • Chemistry
  • Nuclear Waste Materials
  • Mining Engineering
  • Water Treatment (Water Supply)
DEF

The surface retention of solid, liquid, or gas molecules or of ions by a solid or liquid, as opposed to absorption, the penetration of substances into the bulk of the solid or liquid.

CONT

Adsorption [refers to a] process of extracting a pollutant by causing it to be attracted to and attached to an adsorbent cleaner.

CONT

The adsorption of radioactive waste relates to the capability of soils, clay, etc., to retain the material and hence prevent it from reaching the biosphere.

OBS

Broadly, adsorption at a solid-liquid interphase may be physical, electro-chemical or chemical. ... Ionic adsorption includes common-ion adsorption to the mineral lattice, and ion-exchange between the surface lattice-charges of solid and the ions in solution (the surface-modifying effects utilised in the flotation process).

French

Domaine(s)
  • Chimie
  • Déchets nucléaires
  • Génie minier
  • Traitement des eaux
DEF

[...] fixation superficielle quasi réversible d’une substance liquide ou gazeuse(substance adsorbée) à la surface d’un support solide(support adsorbant).

OBS

Il s’agit donc d’un phénomène de surface [...] par opposition à l’absorption qui [...] se déroule dans la profondeur de la masse solide [...]

PHR

Adsorption sur le charbon actif.

PHR

Adsorption spécifique.

PHR

Entraîner par adsorption (les radionucléides).

Spanish

Campo(s) temático(s)
  • Química
  • Desechos nucleares
  • Ingeniería de minas
  • Tratamiento del agua
DEF

Absorción de un gas o un líquido por la parte superficial de un cuerpo sólido; por ejemplo, de ciertos gases por el carbón, circunstancia que se aprovecha en las caretas de defensa contra los gases tóxicos.

Save record 2

Record 3 2003-11-07

English

Subject field(s)
  • Analytical Chemistry
DEF

A form of gas chromatography in which the moving phase is a gas and the stationary phase is a surface-active sorbent (charcoal, silica gel, or activated alumina). The separation is achieved by adsorption of the components of a sample.

OBS

The physical states of the mobile and stationary phases give rise to four basic types of chromatography: gas-liquid chromatography (GLC), gas-solid chromatography (GSC), liquid - liquid chromatography (LLC), and liquid-solid chromatography (LSC). Of the four basic types of chromatography, the two gas systems are independent and not subject to subdivisions. Thus the terms "gas-liquid chromatography" and "gas-solid chromatography" adequately identify the techniques involved. The liquid systems are not as easily described and are not mutually exclusive, which can lead to considerable confusion.

Key term(s)
  • gas adsorption chromatography
  • solid gas chromatography

French

Domaine(s)
  • Chimie analytique
DEF

Chromatographie en phase gazeuse dans laquelle la phase fixe est constituée par un adsorbant solide.

OBS

Dans cette définition, le premier mot spécifie la nature de la phase mobile et le second la phase stationnaire. En chromatographie gazeuse, la distinction entre gaz-solide peut paraître obscure : des liquides peuvent être employés pour modifier les phases stationnaires solides et les supports solides utilisés pour retenir les phases stationnaires liquides qui peuvent affecter le processus chromatographique. Dans un classement selon la nature des phases, le terme relatif à l’effet prédominent doit être choisi.

OBS

«Chromatographie gaz-solide» a été normalisé par l’AFNOR.

Key term(s)
  • chromatographie d’adsorption des mélanges gazeux
  • chromatographie gaz solide

Spanish

Campo(s) temático(s)
  • Química analítica
DEF

Cromatografía de gases en la que la fase estacionaria es un sólido adsorbente.

Save record 3

Record 4 1996-10-11

English

Subject field(s)
  • Chemistry
DEF

Oxidative or reductive chemisorption where "reductive" and "oxidative" refer to electron gain or loss on species in the solid. In simple cases it is non-dissociative, i.e. there is a mere transfer of charge between adsorptive and adsorbent in forming the adsorbate.

French

Domaine(s)
  • Chimie
DEF

Des chimisorptions oxydante ou réductrice pour lesquelles «oxydante» et «réductrice» se réfèrent à la perte ou au gain d’électrons par les espèces dans le solide. Dans les cas simples, elles sont non dissociatives, c'est-à-dire que, lors de la formation de l'espèce adsorbée, il ne se produit qu'un transfert de charge entre la substance à adsorber et l'adsorbant.

Spanish

Save record 4

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