Noun
sulfurous acid (uncountable)
(inorganic chemistry) The weak acid, H2SO3, present in a solution of sulfur dioxide in water; it is a reducing agent and mild bleach.
In water, this gas produces sulfurous acid and sulfites; sulfites are antioxidants that inhibit growth of aerobic bacteria and a useful food additive in small amounts. Source: Internet
Sulfur dioxide and sulfites ( SOmain ) are related to the unstable sulfurous acid (H 2 SO 3 ). Source: Internet
In addition it has been variously calculated that convert of sulfurous acid citation or convert of sulfur dioxide citation were ejected into the atmosphere by the event. Source: Internet