Uses Of SO2 by keypoint Uses Of SO2(g) It is used in the production of tetraoxosulphate (vi) acid. Liquid SO2 is used as a refrigerant. It is used in making germicide and fumigants. It is use as a bleaching agent. Others are Viewing: Sulphur (iv) oxide (SO2) Physical Properties of SO2 Chemical Properties of SO2 Tests For SO2 Uses of Hydrogen Uses of Chlorine Uses Of H2SO4