catalyst

['kæt(ə)lɪst] n

catalyst A substance whose presence alters the rate at which a chemical reaction proceeds, but whose own composition remains unchanged by the reaction. Catalysts are usually employed to accelerate reactions(positive catalyst), but retarding (negative) catalysts are also used ['kæt(ə)lɪst] n

envir.

καταλύτης m

Anglais glossaire

catalyst ['kæt(ə)lɪst] abbr.

abrév., polym.

cat

Catalyst

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