| 摘要 |
PURPOSE:To obtain the subject cleaning fluid having an improved solvency for hydrohalogenic acid salts of an amine which are the cause of corrosion of soldered junctions by blending a hydrohalogenic acid salt of an amine as an activator and a specified large ring polyether therein in a specified amount. CONSTITUTION:(A) A hydrohalogenic acid salt of an amine such as a diethylamine hydrochloride is used as an activator and (B) a large ring polyether represented by formula (C2H4O)n (n is 4, 5, 6 or 8) is added within a range of 0.1-2wt.% to provide the objective cleaning fluid. |
