Nacl ---> cl2 ---> Hclo ---> hcl ---> agcl ---> Ag cl2 ---> Nước Javen cl2 ----> Fecl3 Hcl ---> Fecl2

PTHH:

`2NaCl+2H_2O`$\xrightarrow[\text{có màng ngăn}]{\text{điện phân dung dịch}}$`2NaOH+Cl_2+H_2`

`Cl_2+H_2O⇄HCl+HClO`

`2HClO`$\xrightarrow[]{ánh sáng}$`2HCl+O_2`

`AgNO_3+HCl->AgCl+HNO_3`

`2AgCl`$\xrightarrow[]{ánh sáng}$`2Ag+Cl_2`

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`Cl_2+2NaOH->NaCl+NaClO+H_2O`

(sản phẩm là dung dịch nước gia-ven)

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`2Fe+3Cl_2`$\xrightarrow[]{t^o}$`2FeCl_3`

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`Fe+2HCl->FeCl_2+H_2`