In 1974 he received the CNRS Silver Medal and in 1997 the CNRS Gold Medal and the Prix Paul Pascal from the French Academy of Sciences. In 1992 he was awarded the Gay-Lussac Humboldt Prize. Rouxel received the Alexander von Humboldt Research Award (1993) and gave the Debye Lecture of the Cornell University section of the American Chemical Society. He was Knight of the Legion of Honor (1988, officer from 1997) and officer of the Ordre national du Mérite and commander of the Palmes académiques. In 1988 he became a member of the Académie des sciences and he was a member of the American Academy of Arts and Sciences (1992), the Academia Europaea, the German National Academy of Sciences Leopoldina (1997) and the Indian Academy of Sciences.