2-Mercaptothiazoline and cetyl pyridinium chloride as inhibitors for the corrosion of a low carbon steel in phosphoric acid

Weight loss studies showed that both 2-mercaptothiazoline and cetyl pyridinium chloride are effective for the inhibition of low carbon steel over a wide concentration range of aqueous phosphoric acid solution. The results for uninhibited acid confirm the kinetic expression proposed by Mathur and Vasudevan (Corrosion 38 (1982) 171).