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This research aimed to determine the effect of adding sulfuric acid to the synthesis of sulphated oil from palm oil to the chemical properties of the resulting sulphated oil. The research method is the synthesis of sulphated oil from bulk palm oil, with a 98% H2SO4 emulsifier technically. The addition of H2SO4 varied with successive number of 10; 12.5; 15; 17.5; 20; 22.5 and 25% with sulphation time for 3 (three) hours. The resulting sulphated oil was chemically tested including water content, oil content, total alkalinity, saponification number, ash content, and SO3 levels are bound. The results showed that there was an effect of adding H2SO4 to the synthesis of oil sulphated. The addition of 25% H2SO4 is the best compared to other samples. Sulphated oil obtained by its solubility in water is more stable than other samples. The chemical properties of the sulfur oil produced have a water content of 6.47%; oil content of 81.28%; total alkalinity of 0.25%; and ash content of 2.77%; meet the requirements IS: 6357-1971, specifications of sulphated oil for leather.