Sulfur dioxide is a colorless gas at room temperature with a pungent odor. It has strong permeability, can penetrate into various gaps quickly, and is easily absorbed by items, especially wet items. Sulfur dioxide is toxic to humans, and the maximum allowable concentration in the air is 15mg/m3.

Applications

Chemical

Sulphur dioxide is used in the manufacture of sulphite, hydrogen sulphites and sulphuric acid.

Wine Equipment

Sulphur dioxide is used to sterilize wine and beer making equipment in order to imhibit the growth of moulds and bacteria, and to control wine fermentation. Sulphur dioxide may be used in a variety of disinfecting and fumigation applications.

Bleach

Sulphur dioxide is used as a bleaching agent particularly for certain types of dried food, and also to bleach glue, elation, sugar, textiles, fats and oils.

Environmental

Sulphur dioxide is used in gas mixtures for car emission monitoring.

Glass Manufacture

Sulphur dioxide is also used in the float glass manufacturing process.