Previously we reported the temperature profile of de-emulsification process of oil and water emulsion. The emulsion mixtures prepared were not stable enough. Hence we prepared stable emulsions with SDS as emulsifying agent. Emulsion solutions containing 110ml of different concentrations of 10%, 25% and 50% solutions of water in oil with SDS as emulsifying agent. The amount of SDS added was proportional to the percentage of water added. In case of 10 % water, the amount of SDS used was about 0.05 g while in case of 25 % water, 0.1g of SDS was used and in that of 50 % water, 0.2g of SDS was used. The solutions were heated at every interval time in order to determine the amount of water separated. Heating the solution every minute the volume of water separated was recorded.