1.7.1.B1 2-mercaptoethanol - 63 1.7.1.B1 Ag+ about 70% inhibition 75 1.7.1.B1 Cu2+ about 70% inhibition 19 1.7.1.B1 Hg2+ about 70% inhibition 33 1.7.1.B1 additional information not inhibitory: Fe2+ 2