A composition including a compound having structural formula (I): Rf is a linear or branched perfluoroalkyl group having 1-3 atoms; n is 0-2; x is 1-3; and Rf' and Rf" are (i) independently, a linear or branched perfluoroalkyl group having 1-8 carbon atoms; or (ii) are bonded together to form a ring structure having 4-8 carbon atoms. The composition further includes a hydrocarbon contaminant.
一种化合物的组合物,其结构式为(I):Rf是具有1-3个原子的线性或支链
全氟烷基;n为0-2;x为1-3;Rf'和Rf"是(i)独立的,具有1-8个碳原子的线性或支链
全氟烷基;或(ii)结合在一起形成具有4-8个碳原子的环状结构。该组合物还包括一个碳氢污染物。