摘要 |
PURPOSE:To obtain the subject cleaning agent substitutable for conventional fluorocarbon-based or chlorine-based solvent having low toxicity and a high flash point without fear of ozone decomposition nor environmental pollution of water system containing a nonionic surfactant and a specific adipic acid ester as essential components. CONSTITUTION:The aimed cleaning agent for removing flux after soldering contains (A) preferably 1-30 wt.% polyoxyethylene-based nonionic surfactant such as preferably a polyoxyethylene alkyl ether or polyoxyethylene fatty acid ester and (B) preferably 50-99 wt.% at least a species of adipic acid ester expressed by the formula (R is 1-2C alkyl). |