酸性高锰酸钾
9H2SO4+5C6H5CH3+6KMnO4=5C6H5COOH+3K2SO4+6MnSO4+14H2O
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- 10mn02+4hcl（浓）=mncl2+cl2↑+2h2o,当制取1molcl2时,所需氧化剂与还原剂物质的量之比