Table 3. Comparison of the Inhibition Efficacies of Studied Thiuram Disulfides for Metals Obtained in the Present Study with Similar Studies in the Literature.

S/N	disulfides	metal/electrolyte	conc. (mM)	max. % IE	refs
1.	bis(1-benzylpiperazine)thiuram disulfide (P2)	mild steel/3.9 M HCl	1	90.00	(16)
2.	bis(4-benzyl piperidine)thiuram disulfide (P3)	mild steel/5.5 M H3PO4	1	93.00	(17)
3.	diallyl disulfide (DAD)	copper/0.5 M H2SO4	5	91.50	(18)
4.	propyl disulfide (PPD)	copper/0.5 M H2SO4	5	92.10	(18)
5.	dibenzyl disulfide (DBD)	copper/0.5 M H2SO4	5	98.50	(18)
6.	phenyl disulfide (PDF)	copper/0.5 M H2SO4	5	97.70	(20)
7.	2,2′-dithiodipyridine (DDP)	copper/0.5 M H2SO4	5	99.20	(20)
8.	5,5-dithiobis(1-phenyl-1H-tetrazole) (DPT)	copper/0.5 M H2SO4	5	99.70	(20)
9.	bis(2-benzothiazolyl)-disulfide	mild steel/1 M HCl	0.20	68.20	(59)
10.	bis(1-benzyl piperazine)thiuram disulfide (C5)	mild steel/3.2 M H2SO4	1	95.00	(60)
11.	2,2′ benzothiazolyl disulfide	mild steel/1 M HCl	0.15	98.34	(61)
12.	2,2′ benzothiazolyl disulfide	mild steel/0.5 M H2SO4	0.15	99.29	(61)
13.	N,N′-(disulfanne-1,2-dicarbonothioyl)bis(N,N′-bis(2,6-dimethylphenyl)formimidamide) (DS1)	mild steel/1 M HCl	1	98.60	present study
14.	N,N′-(disulfanne-1,2-dicarbonothioyl)bis(N,N′-bis(2,6-diisopropylphenyl)formimidamide) (DS2)	mild steel/1 M HCl	1	98.36	present study
15.	N,N′-(disulfanne-1,2-dicarbonothioyl)bis(N,N′-dimesitylformimidamide) (DS3)	mild steel/1 M HCl	1	94.66	present study
16.	N,N′-(disulfanne-1,2-dicarbonothioyl)bis(N,N′-bis(2,6-dichlorophenyl)formimidamide) (DS4)	mild steel/1 M HCl	1	83.57	present study