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The sulfite ion is the conjugate base of bisulfite. Although its acid (sulfurous acid) is elusive, [1] its salts are widely used. Sulfites are substances that naturally occur in some foods and the human body. They are also used as regulated food additives. [2] When in food or drink, sulfites are often lumped together with sulfur dioxide. [3]
Sulfites occur naturally in wines to some extent. [1] [2] [3] Sulfites are commonly introduced to arrest fermentation at a desired time, and may also be added to wine as preservatives to prevent spoilage and oxidation at several stages of the winemaking. Sulfur dioxide (SO 2) protects wine from not only oxidation, but also from bacteria.
Sulfites occur naturally in some foods and drinks, while they are added to others. Sulfites help keep food, drinks, and medications from spoilage or discoloration.
Sulfites, or small molecules of sulfur dioxide (SO 2) and hydrogen disulfide (H 2 O 2), are commonly used as preservatives in wine and even other fruit drinks. [7] Their principle is basically to make microbial protein coagulation or denaturation, thereby interfering with their growth and reproduction. [ 7 ]
Scotlandite is a sulfite compared with chemically related compounds, it is very close to the value of anglesite (6.38 g cm −3), but distinctly different from that of lanarkite (6.92 g cm −3). Orthorhombic lead sulfite is of higher density (D meas = 6.54, calculated D x = 6.56 g cm −3), and has the same chemical properties as well. [2]
Acid sulfate soils are naturally occurring soils, sediments or organic substrates (e.g. peat) that are formed under waterlogged conditions. These soils contain iron sulfide minerals (predominantly as the mineral pyrite) and/or their oxidation products. In an undisturbed state below the water table, acid sulfate soils are benign.
breathing difficulty with low blood oxygen, potentially related to sulfite-containing compounded drugs. It also said sulfites may cause severe allergic reactions and life-threatening or less ...
Sodium sulfite (sodium sulphite) is the inorganic compound with the chemical formula Na 2 SO 3. A white, water-soluble solid, it is used commercially as an antioxidant and preservative. It is also suitable for the softening of lignin in the pulping and refining processes of wood and lignocellulosic materials. [1]