Disclosed is a colored heat transfer fluid, the heat transfer fluid comprising a nonconductive colorant and having a conductivity of less than 200 μS/cm. Also provided is an assembly comprising an alternative power source and a heat transfer system in thermal communication with the alternative power...http://www.google.es/patents/US7985349?utm_source=gb-gplus-sharePatente US7985349 - Non-conductive colored heat transfer fluids
