最重要的几个Na2S2O3+H2SO4 =Na2SO4+S+SO2+H2O ( Na2S2O3在酸性条件下歧化,产生黄色沉淀)Na2S2O3+I2=Na2S4O6+2NaI(碘量法的原理)Na2S2O3+4Cl2 +5H2O=2NaHSO4 +8HCl(在漂白工业中的脱氯试剂)2AgBr+Na2S2O3=Ag2S2O3 + 2NaBr (少量Na2S2O3)AgBr+2Na2S2O3=Na3[Ag(S2O3)2] +NaBr(定影液溶解未曝光的AgBr)
最重要的几个Na2S2O3+H2SO4 =Na2SO4+S+SO2+H2O ( Na2S2O3在酸性条件下歧化,产生黄色沉淀)Na2S2O3+I2=Na2S4O6+2NaI(碘量法的原理)Na2S2O3+4Cl2 +5H2O=2NaHSO4 +8HCl(在漂白工业中的脱氯试剂)2AgBr+Na2S2O3=Ag2S2O3 + 2NaBr (少量Na2S2O3)AgBr+2Na2S2O3=Na3[Ag(S2O3)2] +NaBr(定影液溶解未曝光的AgBr)