.TILMedia.BaseClasses.PartialGasObjectFunctions.densityDerivativeWRTmassFraction_pTxin .TILMedia.BaseClasses.PartialGasObjectFunctions.densityDerivativeWRTmassFraction_pTxinpartial function densityDerivativeWRTmassFraction_pTxin = TILMedia.BaseClasses.PartialGasObjectFunctionPrototypes.densityDerivativeWRTmassFraction_pTxin;