TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
TEORIA QUIMICA [2 records]
Record 1 - internal organization data 2017-01-25
Record 1, English
Record 1, Subject field(s)
- Chemical Engineering
- Exhaust Systems (Motor Vehicles)
Record 1, Main entry term, English
- catalyst
1, record 1, English, catalyst
correct, standardized, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- catalyzer 2, record 1, English, catalyzer
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A substance used in small proportion, that augments the rate of a chemical reaction, and in theory remains unchanged chemically at the end of the reaction. 3, record 1, English, - catalyst
Record number: 1, Textual support number: 1 OBS
catalyst: term and definition standardized by ISO. 4, record 1, English, - catalyst
Record number: 1, Textual support number: 2 OBS
Catalysts in living systems are called "enzymes." 5, record 1, English, - catalyst
Record number: 1, Textual support number: 3 OBS
catalyst: term officially approved by the Lexicon Project Committee (New Brunswick). 4, record 1, English, - catalyst
Record number: 1, Textual support number: 1 PHR
bimetallic cluster, colloidal, complex, heterogeneous acidic, iron, man-made, metallic hydrogenation, organic, positive (metal ion), Raney nickel, solid catalyst 4, record 1, English, - catalyst
Record number: 1, Textual support number: 2 PHR
pore distribution of a catalyst, reactivation of a catalyst 4, record 1, English, - catalyst
Record 1, Key term(s)
- catalyser
Record 1, French
Record 1, Domaine(s)
- Génie chimique
- Échappement (Véhicules automobiles)
Record 1, Main entry term, French
- catalyseur
1, record 1, French, catalyseur
correct, masculine noun, standardized, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Substance qui, utilisée en faible proportion, augmente la vitesse d'une réaction chimique et qui, théoriquement, reste chimiquement inchangée à la fin de la réaction. 2, record 1, French, - catalyseur
Record number: 1, Textual support number: 1 OBS
catalyseur : terme et définition normalisés par l'ISO. 3, record 1, French, - catalyseur
Record number: 1, Textual support number: 2 OBS
Il n'existe qu'un petit nombre de catalyseurs capables d'effectuer dans des conditions optimales une réaction donnée. Le catalyseur réel adapté à un procédé particulier est le plus souvent un solide complexe. Il comporte une phase active qui, pour développer une surface maximale, est déposée sur un support, parfois à dose très faible s'il s'agit d'éléments coûteux comme les métaux précieux. Cependant, certains catalyseurs dits massiques sont uniquement constitués de phase(s) active(s) [...] [que l'on peut classer en trois grandes familles] : les métaux; les semi-conducteurs, oxydes, sulfures ou autres ions supportés; les oxydes isolants, acides ou basiques. 4, record 1, French, - catalyseur
Record number: 1, Textual support number: 3 OBS
catalyseur : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick). 3, record 1, French, - catalyseur
Record number: 1, Textual support number: 1 PHR
catalyseur au fer, catalyseur massique, catalyseur solide 3, record 1, French, - catalyseur
Record number: 1, Textual support number: 2 PHR
poison de catalyseur 3, record 1, French, - catalyseur
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Ingenieria química
- Sistemas de escape (Vehículos automotores)
Record 1, Main entry term, Spanish
- catalizador
1, record 1, Spanish, catalizador
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Sustancia que usada en pequeñas cantidades hace aumentar la velocidad de una reacción química, y en teoría, permanece químicamente igual al final de la reacción. 1, record 1, Spanish, - catalizador
Record 2 - internal organization data 2001-10-18
Record 2, English
Record 2, Subject field(s)
- Chemical Elements and Compounds
- Air Pollution
Record 2, Main entry term, English
- chemical theory
1, record 2, English, chemical%20theory
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- chemical explanation 2, record 2, English, chemical%20explanation
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
Hypothesis that chemical processes, rather than dynamic ones, are responsible for ozone depletion. 3, record 2, English, - chemical%20theory
Record number: 2, Textual support number: 1 CONT
Support for a chemical explanation of the ozone hole does not eliminate the possibility that natural processes, such as a shift in atmospheric dynamics, are also important. Dynamical processes do not destroy ozone; they simply redistribute it. 2, record 2, English, - chemical%20theory
Record 2, French
Record 2, Domaine(s)
- Éléments et composés chimiques
- Pollution de l'air
Record 2, Main entry term, French
- hypothèse chimique
1, record 2, French, hypoth%C3%A8se%20chimique
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- explication par la chimie 2, record 2, French, explication%20par%20la%20chimie
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Hypothèse selon laquelle des processus chimiques, plutôt que des processus dynamiques, seraient à l'origine de l'appauvrissement de la couche d'ozone. 3, record 2, French, - hypoth%C3%A8se%20chimique
Record number: 2, Textual support number: 1 OBS
Selon l'hypothèse chimique, ce sont les chlorofluorocarbures, ou CFC, qui portent la responsabilité de la destruction de l'ozone stratosphérique. 3, record 2, French, - hypoth%C3%A8se%20chimique
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Elementos y compuestos químicos
- Contaminación del aire
Record 2, Main entry term, Spanish
- teoría química
1, record 2, Spanish, teor%C3%ADa%20qu%C3%ADmica
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
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