| 摘要 |
<p>An ionic liquid characterized by comprising a phosphonium salt represented by formula (1), which has such characteristic properties that no halogen atom is contained, thermal stability is excellent and hydrophobicity is exerted. (In the formula, R1 represents an alkyl group having 1 to 10 carbon atoms; R2 represents an alkyl group having 8 to 20 carbon atoms; R3 represents an alkyl group having 1 to 8 carbon atoms; and n represents an integer of 1 to 12; wherein the number of carbon atoms in R2 is greater than that in R1.)</p> |
