reductantn.
/rᵻˈdʌkt(ə)nt/, U.S. /rəˈdəktnt/, /riˈdəktnt/ Chemistry.
= reducing agent n. at reducing adj. Compounds 2. Cf. oxidant n.
ΘΚΠ
the world > matter > chemistry > chemical reactions or processes > [noun] > chemical reactions or processes (named) > reduction > reducing agent
reducing agent1816
reducent1829
reducer1854
reductant1924
1924 Jrnl. Amer. Chem. Soc. 46 1255 The term ‘oxidation-reduction potential of a substance’ is used..to signify the potential of equimolecular amounts of oxidant and reductant referred to the normal hydrogen electrode.
1935 J. N. Friend Text-bk. Physical Chem. II. vii. 302 When E0 is negative the ion in the lower state of oxidation..functions as a reducer or reductant.
1978 G. C. Hill & J. S. Holman Chem. in Context xiii. 186 The oxidizing agent (oxidant) is the electron acceptor and the reducing agent (reductant) is the electron donor.
2006 Australian (Nexis) 8 July 3 Almost two-thirds of world steel is produced in blast furnaces that use coking coal as a reductant for iron ore.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).
<
n.1924