Electrolyzing brine using an anode coated with an intermetallic compound

In a method of electrolyzing brine wherein brine is fed to an electrolytic cell having an anode and a cathode, an electrical current passes from the anode to the cathode, and chlorine is evolved at the anode, the improvement wherein said anode comprises:

• an electroconductive substrate;
• and
• an electroconductive layer comprising an intermetallic compound of a platinum group metal and a transition metal chosen from the group consisting of RuTi, RuV, Ru.sub.2 Zr, NbRu, RuTa, Mo.sub.5 Ru.sub.3, W.sub.3 Ru.sub.2, RuCr.sub.2, Sn.sub.2 Ru, Rh.sub.3 Ti, Rh.sub.3 V, Rh.sub.3 Zr, Rh.sub.3 Nb, Rh.sub.3 Ta, RhCr.sub.3, Rh.sub.3 Sn, Rh.sub.3 Pb.sub.2, OsTi, OsV, OsZr, Nb.sub.3 Os.sub.2, Mo.sub.19.5 Os.sub.10.5, Ta.sub.3 Os, WOs.sub.2, Cr.sub.2 Oe, TiIr.sub.3, VIr.sub.3, ZrIr.sub.2, Ir.sub.3 Nb, Mo.sub.3 Ir, TaIr.sub.3, HfIrNi, Cr.sub.3 Ir, Mn.sub.3 Ir, IrSn.sub.2, Pt.sub.3 Ti, Pt.sub.3 V, Pt.sub.3 Zr, Pt.sub.3 Nb, Pt.sub.3 Mo, Pt.sub.4 Ta, Pt.sub.3 Fe, PtCr.sub.2, Pt.sub.2 Sn.sub.3, PbPt.sub.5, PbPt.sub.6, PbPt.sub.y, Ti.sub..9 Re.sub..1 Si.sub.2, Re.sub.3 V, Re.sub.2 Zr, NbRe, MoRe, TaRe, WRe, Re.sub.3 Fe.sub.2, Re.sub.6 Co.sub.5.7 Si.sub.1.3, CrRe, Mn.sub.3 Re.sub.2, TiPd.sub.3, Pd.sub.3 V, Pd.sub.3 Zr, PdTa, FePd.sub.3, Pd.sub.3 Mn.sub.2, PdSn.sub.3 Pd.sub.3 Pb, and mixtures thereof, on said substrate.