| 摘要 |
An aqueous cleaning solution having good wetting properties in high caustic concentrations, improved the biodegradability, and low to moderate foaming is comprised of an alkali metal hydroxide and a wetting amount of a nonionic surfactant represented by formula (I), wherein R represents an alkyl group having from about 8 to about 18 carbon atoms and mixtures thereof, Y represents H, alpha , or R', and mixtures thereof, R' represents an alkyl group, the sum total of carbon atoms in R + R' being from about 8 to about 18; n is from about 1 to about 20; and m + n are from about 2 to about 20. |
