Table 4 The inhibition performance of organic inhibitors studied in acidic media in the well-cited literature over the past 3 years.

From: Insights into the newly synthesized bi- Mannich base for carbon steel corrosion inhibition in H₂S and HCl solution

Ref	Type of inhibitors	Substrate	Medium	Method	Dosage	Temperatur (K)	Efficiency (%)	(ΔGads) (kJmol⁻¹)	Isotherm/Nature of adsorption
This work	Mannich base	Carbon steel	HCl and H₂S co-existing solution	EIS	9 ppm	293	98.0	− 38.76	Langmuir/Mixed type
				WL	9 ppm	293	96.8
				WL	30 ppm	353	92.5
⁵	Rhodanine	Mild steel	0.5 M H₂SO₄	EIS	10 mM	298	98	− 38.13	Langmiur/Mixed type
²¹	Aryl Benzothiazoles derivatives	Mild steel	1 M HCl	EIS	0.333 mM	308	96.4	− 35.31	Langmiur/Mixed type
²⁶	Mannich base	Q235 steel	0.25 M H₂SO₄	WL	0.5 mM	323	98.2	− 49.83	Langmiur/Chemisorption
²⁷	Mannich base	N80 steel	15% HCl	WL	6.24 mM	363	98.2	− 39.202	Langmiur/Mixed type
⁴²	Benzothiazole derivatives	mild steel	1 M HCl	EIS	0.5 mM	300	98.0	− 42.63	Langmiur/Chemisorption
⁴⁸	Triazine derivatives	Mild steel	0.5 M HCl	EIS	10 mM	298	95.7	− 34.51	Langmiur/Mixed type
⁵⁰	Isoindoline derivatives	N80 steel	15% HCl	WL	0.05 mM	303	99.08	− 47.60	Langmiur/Chemisorption
⁵⁰	Isoindoline derivatives	N80 steel	15% HCl	WL	0.05 mM	333	99.63	− 55.42	Langmiur/Chemisorption
⁵¹	Carbon dots	Mild steel	15% HCl	WL	350 ppm	303	93.09	− 29.37	Langmiur/Mixed type
⁵²	Schiff base	Carbon steel	1 M H₂SO₄	WL	0.04 mM	303	97.4	− 25.53	Langmiur/Mixed type
⁵³	Purine derivatives	Carbon steel	50% diluted oilfield-produced water	WL	5 mM	298	91.1	− 35.53	Langmiur/Mixed type
⁵⁴	Thiazole Derivative	Mild steel	1 M HCl	WL	800 ppm	298	95.35	− 24.19	Langmiur/Mixed type
⁵⁵	Pyridine derivative	Mild steel	1 M HCl	EIS	1 mM	298	95.66	− 33.76	Langmiur/Mixed type
⁵⁶	Sucrose derivative	Mild steel	15% HCl	EIS	9 mM	303	86.6	− 28.97	Langmiur/Mixed type
⁵⁶	Sucrose derivative	Mild steel	15% HCl	EIS	9 mM	363	94.7	− 34.63	Langmiur/Mixed type
⁵⁷	Nonanedioic acid derivative	Mild steel	1 M HCl	WL	0.5 mM	303	98.3	− 40.8	Langmiur/Mixed type
⁵⁷	Nonanedioic acid derivative	Mild steel	1 M HCl	EIS	0.5 mM	303	90.78	− 40.8	Langmiur/Mixed type
⁵⁸	Saccharin derivative	C38 steel	1 M HCl	EIS	1 mM	293	92.47	− 38.02	Langmiur/Mixed type
⁵⁹	Glycinate derivatives	Mild steel	1 M HCl	EIS	0.2864 mM	303	95.21	− 35.03	Langmiur/Mixed type
⁶⁰	Pyran derivatives	Mild steel	1 M HCl	EIS	1 mM	298	89.0	− 46.1	Langmiur/Mixed type

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Table 4 The inhibition performance of organic inhibitors studied in acidic media in the well-cited literature over the past 3 years.

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