Sodium bisulfite, an inorganic compound with the formula NaHSO3, is a white crystalline powder with an unpleasant odor of sulfur dioxide, used primarily as a bleach, preservative, antioxidant, and bacterial inhibitor.
On October 27, 2017, the list of carcinogens published by the International Agency for Research on Cancer of the World Health Organization was preliminatively collated for reference, and bisulfite was in the list of 3 types of carcinogens.
Usage
Mainly used as bleach, preservative, antioxidant, bacterial inhibitor.