Scandium sulfate is the scandium salt of sulfuric acid and has the formula Sc2(SO4)3. It is used in agriculture as a very dilute solution as a seed treatment to improve the germination of corn, peas, wheat, and other plants. Scandium sulfate is the scandium salt of sulfuric acid and has the formula Sc2(SO4)3. It is used in agriculture as a very dilute solution as a seed treatment to improve the germination of corn, peas, wheat, and other plants.