Na2S2O3+3H2SO4=Na2SO4+4SO2+3H2O
硫代硫酸鈉標準溶液的配制和標定:(依據國標GB/T5009.1-2003)C(Na2S2O3)=0.1mol/L1.配制:稱取26g硫代硫酸鈉(Na2S2O35H2O)或16g無水硫代硫酸鈉,及0.2......