Chemical Property of Sulfite
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Chemical Property:
- Vapor Pressure:371mmHg at 25°C
- Boiling Point:°Cat760mmHg
- Flash Point:°C
- PSA：83.30000
- Density:g/cm3
- LogP:0.29180
- XLogP3:-1.6
- Hydrogen Bond Donor Count:0
- Hydrogen Bond Acceptor Count:4
- Rotatable Bond Count:0
- Exact Mass:79.95681503
- Heavy Atom Count:4
- Complexity:18.8
- Purity/Quality:
-
99% *data from raw suppliers
Sulfite Quant? Test Strips *data from reagent suppliers
Safty Information:
- Pictogram(s):
- Hazard Codes:
- MSDS Files:
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SDS file from LookChem
Useful:
- Chemical Classes:Other Classes -> Sulfites
- Canonical SMILES:[O-]S(=O)[O-]
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Description
Endogenous sulfite is generated as a consequence of the body’’s
normal processing of sulfur-containing amino acids. In addition,
as discussed below, sulfite can be produced by neutrophils.
Sulfites occur as a consequence of fermentation and also naturally
in a number of foods and beverages. As food additives,
sulfating agents were first used in 1664, and approved for use in
the United States in the 1800s. Sulfite is also noted as a water
treatment additive, for example, to control oxygen levels in
power plant boiler water. Further, sulfur dioxide is acommonair
pollutant produced by numerous processes (burning sulfurbearing
coal, smelting sulfide ores, etc.), and may enter the body
via inhalation. Sulfur dioxide has been reported to react with
water in the ambient air and in the respiratory tract’s mucous
membranes to form sulfite and bisulfite ions.
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Uses
Inorganic sulfites and bisulfites (such as sodium sulfite,
Na2O3S) are used in photography, the bleaching of wool, and
as preservatives in foods, beverages, and medications. They act
as effective antioxidant compounds and are also used in the
manufacture of pulp for paper and wood products. Their
preservative properties include controlling microbial growth
and the prevention of browning and spoilage.
Under the US Federal Food, Drug, and Cosmetic Act, sulfites
are permitted for use as preservatives in food. Like other ingredients,
sulfites must be declared in the ingredient statement
when added to a food product. In addition, sodium sulfite,
ammonium sulfite, sodium bisulfite, potassium bisulfite,
ammonium bisulfite, sodium metabisulfite, and potassium
metabisulfite are inorganic salts that function as reducing agents
in cosmetic formulations. All except sodium metabisulfite also
function as hair waving/straightening agents. In addition,
sodium sulfite, potassium sulfite, sodium bisulfite, and sodium
metabisulfite function as antioxidants in cosmetics. All except
ammonium sulfite are widely used in hair care products.
