欧美大片在线视频

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        1. gӭRKԴhƼ޹˾Wվ ھ “ϵ҂ ΢Pע

          ˾ͨ^ISO9001|wϵJC

          ڴȾгĽصļgMˮƽ

          1 2 3
          aƷԔ
          λã » » aƷԔ
          XQ-TS͸ЧpAÓ

          c}pAÓˇNa2CO3/Ca(OH)2ʯʯ/ʯ෨AϽYcAlչš˷ʯʯ/ʯ෨׽YcA\Møߵȱcc}ˮȲcASO2պÓҺ؃rʯMĶʹcxѭh
          ԓˇCʯҷccAcQʯҷ׽YĆ}߂cAЧʸߵăc
          c}pA[Na2CO3/Ca(OH)2]üAc}SO2ʯķWԭɷÓ^̺^̣www.syhxmc.com/
          Ó^
          Na2CO3 + SO2 Na2SO3 + CO2         (1)
          2NaOH + SO2 Na2SO3 + H2O         (2)
          Na2SO3 + SO2 + H2O NaHSO3        (3)
          (1) ʽՆӷʽ
          (2) ʽҪʽpH9A^ߕr
          (3) ʽ鮔AԽ͵ԕr5pH9
          ^
          2NaHSO3 + Ca(OH)2  Na2SO3 +  +CaSO3 + 2H2O    (4)
          Na2SO3 + Ca(OH)2  2NaOH +  CaSO3              (5)
          ʯҝ{Һʯ_͠rԣԣNaHSO3ܿʯҷĶጷų[Na+]Sɵ[SO32-]^mʯҷɵā}԰ˮʽĶʹ[Na+]õҺ֏͌SO2ѭhʹ
          Ó򸱮a遆}}ÑԸԼҪòͬķaƷM̎




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