WATER-SOLUBLE METAL-PROCESSING AGENT, COOLANT, METHOD FOR PREPARATION OF THE COOLANT, METHOD FOR PREVENTION OF MICROBIAL DETERIORATION OF WATER-SOLUBLE METAL-PROCESSING AGENT, ANDMETAL PROCESSING

摘要

Disclosed are a water-soluble metal-processing agent and a coolant both o f which have excellent microbial deterioration resistance and are less likel y to go rotten, a method for preparing the agent or the coolant, and a metal processing method. The water-soluble metal-processing agent or the coolant comprises an N,N,N',N'-tetraalkyldiamine compound. The metal processing meth od is characterized by processing a metal of interest by using the water-sol uble metal-processing agent or the coolant.