Function: noun
Date: 1790
: a weak unstable dibasic acid H 2 SO 3 known in solution and through its salts and used as a reducing and bleaching agent
Function: noun
Date: 1790
: a weak unstable dibasic acid H 2 SO 3 known in solution and through its salts and used as a reducing and bleaching agent
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012