Certain chemical solutions have been shown to reduce the degradation effect of water on the material properties of rock and increase the strength and cuttability of clay-bearing rock. Consequently, there is potential for the application of chemical solutions to enhance the cutting performance of mechanical excavators and for maintaining ground stability in clay-bearing rocks that exist surrounding coal formations. A study investigated the effect of temperature of chemical solutions on rock properties. The temperatures ranged between 5⁰C and 40⁰C. It was found that temperature effect varied with different solutions. In the case of potassium chloride, there were changes in abrasivity, weatherability and cuttability of rock with temperature whereas the results were less consistent with magnesium chloride and copper sulphate solutions.