| abstract |
An object of the present invention is to provide a demulsifier having excellent demulsifying properties such as lubricating oil / water-soluble liquid and crude oil / water. A demulsifier comprising a compound (E) represented by the following general formula (1). General formula [Wherein, R 1 is an alkyl group having 2 to 18 carbon atoms, R 2 is an alkylene group having 2 to 6 carbon atoms, R 3 and R 4 are alkyl groups having 1 to 4 carbon atoms, X is H or- (AO) n- A group represented by H, A is an alkylene group having 2 to 4 carbon atoms, n represents an integer of 1 to 50, and R 3 and R 4 may be the same or different. ] [Selection diagram] None |