abstract:Polythionic acid is an oxoacid which has a straight chain of sulfur atoms and has the chemical formula H2SnO6 (n > 2). Trithionic acid (H2S3O6), tetrathionic acid (H2S4O6) are simple examples.
Twoparticularcorrosiontypes, i. e. dew point corrosion ofsulfuricacidandpolythionic acidstress corrosion cracking werealsointroducedfrom the aspects of corrosion m…