(1)氯气通入pH为3.5的海水中(置换)
Cl2 + 2Br- = 2Cl- + Br2 (pH 3.5)
(2)用压缩空气吹出Br2 ,并在碱性条件下歧化:
Br2 + 3CO32- = 5Br- +BrO3-+3CO2↑
(3)浓缩溶液,在酸性条件下逆歧化:
5Br - + BrO3- +6H+ = 3Br2 + 3H2O
1t海水→0.14kgBr2
(1)氯气通入pH为3.5的海水中(置换)
Cl2 + 2Br- = 2Cl- + Br2 (pH 3.5)
(2)用压缩空气吹出Br2 ,并在碱性条件下歧化:
Br2 + 3CO32- = 5Br- +BrO3-+3CO2↑
(3)浓缩溶液,在酸性条件下逆歧化:
5Br - + BrO3- +6H+ = 3Br2 + 3H2O
1t海水→0.14kgBr2