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Toxicological Chemistry of Chemical Substances
Published in Stanley E. Manahan, Environmental Chemistry, 2022
Sulfur dioxide, SO2, dissolves in water, to produce sulfurous acid, H2SO3; hydrogen sulfite ion, HSO3-; and sulfite ion, SO32-. Because of its water solubility, sulfur dioxide is largely removed in the upper respiratory tract. It is an irritant to the eyes, skin, mucous membranes, and respiratory tract. Some individuals are hypersensitive to sodium sulfite (Na2SO3), which has been used as a chemical food preservative. Because of threats to hypersensitive individuals, these uses were severely restricted in the United States in early 1990.
Toxicological Chemistry of Chemical Substances
Published in Stanley Manahan, Environmental Chemistry, 2017
Sulfur dioxide, SO2, dissolves in water, to produce sulfurous acid, H2SO3; hydrogen sulfite ion, HSO3−; and sulfite ion, SO32−. Because of its water solubility, sulfur dioxide is largely removed in the upper respiratory tract. It is an irritant to the eyes, skin, mucous membranes, and respiratory tract. Some individuals are hypersensitive to sodium sulfite (Na2SO3), which has been used as a chemical food preservative. Because of threats to hypersensitive individuals, these uses were severely restricted in the United States in early 1990.
The Chemistry of Hazardous Materials
Published in Armen S. Casparian, Gergely Sirokman, Ann O. Omollo, Rapid Review of Chemistry for the Life Sciences and Engineering, 2021
Armen S. Casparian, Gergely Sirokman, Ann O. Omollo
As discussed in Chapter 4, sulfuric acid is a substantial component of acid rain. Coal and oil contain sulfur deposits, which release sulfur into the atmosphere when burned. Sulfur dioxide and sulfur trioxide form and react with moisture to produce sulfuric (and sulfurous) acid. The interested reader should consult the appropriate sections of Chapter 4 for further clarification of this problem.
Use of sulfuric acid-carbonization materials from grape pulp for the removal of hexavalent chromium (Cr(VI)): mechanism and characterization
Published in International Journal of Phytoremediation, 2021
Hasan Arslanoğlu, Harun Çiftçi
Sulfur dioxide (SO2) first forms sulfurous acid (H2SO3) during carbonization (Equations (6 and 7)):