Provided is an ink jet ink comprising at least a coloring material comprising a compound represented by the general formula (I) or a salt thereof; and a compound represented by the general formula (II). Thereby, there can be provided an ink jet ink that provides image quality comparable to silver halide photograph and provides a recorded article having high light fastness ##STR00001##

 
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> Process for the recovery of lactic acid from aqueous lactate salt solutions, involving the use of ion exchangers

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