22540
The meso - tetra ( 2 , 6 - dichloro - 3 - sulfonatophenyl ) porphyrinate of manganese ( III ) chloride [ Mn - ( TDCPPS ) Cl ] biomimetic catalyst immobilized on spacer - functionalized kaolinite clay mineral was employed in the oxidative coupling reaction of a dissolved humic acid ( HA ) suprastructure with either chemical ( H2O2 ) or UV - light oxidation .
 Chemical: meso - tetra ( 2 , 6 - dichloro - 3 - sulfonatophenyl ) porphyrinate; Chemical: manganese ( III ) chloride; Chemical: [ Mn - ( TDCPPS ) Cl ]; Chemical: kaolinite; Chemical: H2O2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
 Chemical: meso - tetra ( 2 , 6 - dichloro - 3 - sulfonatophenyl ) porphyrinate; Chemical: manganese ( III ) chloride; Chemical: [ Mn - ( TDCPPS ) Cl ]; Chemical: kaolinite; Chemical: H2O2