Patent ID: 7485612

Claim:
An electronic parts cleaning solution which is characterized in containing an anionic surfactant, hydroxide, metal corrosion inhibitor, water, and a nonionic surfactant represented by formula (I) and/or a nonionic surfactant represented by formula (II): HO-((EO) x —(PO) y ) z —H (I) R-[((EO) a —(PO) b ) c —H] m (II) (EO is an oxyethylene group, and PO is an oxypropylene group. x and y, and a and b are positive numbers, which x/(x+y) and a/(a+b) are 0.05 to 0.5 respectively, and z and c are positive integers. R is a monovalent group of R1-O— (1) H 2 N—R1-NH— (2) H 2 N—R1-O— (3) a divalent group of a trivalent group of a tetravalent group of R1 is a hydrocarbon group having C 1-20 , which may be substituted with hydroxy group and/or alkyl group, and m is an integer from 1 to 4 corresponding the valency of R).