Substance qui accélère une réaction chimique.
A substance that speeds up a chemical reaction.
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See how the word “catalyseur” is used in sentences
Le platine sert ici de catalyseur. — Platinum acts as a catalyst here.
Sans catalyseur, la réaction est bien trop lente. — Without a catalyst the reaction is far too slow.
Quel catalyseur utilisent-ils dans ce procédé ? — Which catalyst do they use in this process?
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