COOLING LIQUID COMPOSITION FOR FUEL CELL

摘要

A cooling liquid composition for fuel cell, characterized by containing an aliphatic alcohol having an unsaturated bond in its molecule which preferably has 2 to 20 carbon atoms per molecule. By the use of this cooling liquid composition for fuel cell, the dielectric constant of the composition can be maintained at 10 muS/cm or below, and the variation of dielectric constant of the composition can be maintained within the range of 0 to 10 muS/cm.