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			  CO+Cl2=高温、活性炭=COCl2             | 
                
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			  CH3OH+COCl2=CH3OC(O)Cl+HCl             | 
                
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			  HCl+CH≡CH→CH2=CHCl             | 
                
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			  CH2=CHCl+Cl2→CH2ClCHCl2             | 
                
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			  CH2ClCHCl2+3NaOH—水→CH2OHCHO+3NaCl+H2O             | 
                
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			  CH2OHCHO+H2=镍、加热=HOCH2CH2OH             | 
                
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			  HOCH2CH2OH+O2→OHCCHO+2H2O             | 
                
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			  OHCCHO+4Ag(NH3)2OH—△→NH4OOCCOONH4+4Ag↓+6NH3↑+2H2O             | 
                
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			  CuSO4+4NH3=Cu(NH3)4SO4             |