Description
- SMBS
Sodium metabisulfite or sodium pyrosulfite is
an inorganic compound of chemical formula Na2S2O5. The
substance is sometimes referred to
as disodium metabisulfite. It is used as
a disinfectant, antioxidant,
and preservative agent.
CAS NO. ********4
Usage:
Food preservation and additive
It is used as a preservative and antioxidant in food and is also
known as E**3. It can be used to preserve color of some fruits,
such as bananas.
It may cause allergic reactions in those who are sensitive to
sulfites, including respiratory reactions in asthmatics,
anaphylaxis, and other allergic reactions in sensitive
individuals.
Sodium metabisulfite and potassium metabisulfite are the primary
ingredients in Campden tablets, used for wine and beer making.
Sanitization and cleaning agent
It is commonly used in homebrewing and winemaking to sanitize
equipment. It is used as a cleaning agent for potable water reverse
osmosis membranes in desalination systems. It is also used to
remove monochloramine from drinking water after treatment.
The acceptable daily intake is up to 0.7 milligrams per kilogram of
body weight.
Sodium metabisulfite oxidizes in the liver to harmless sulfate
which is excreted in the urine.
