The values of rate of corrosion (C_R), inhibition efficiency (IE%), adsorption constant (K_ads), and Gibb's free energy (ΔG_ads) for mild steel in 0.5 M HCl at different temperatures.

Temperature (°C)	Blank	MISB
	C R (mg cm−2 h−1)	ΔGads (kJ mol−1)	K ads × 104 (L mol−1)	C R (mg cm−2 h−1)	IE%
35	5.86	−34.52	1.3	0.50	91.47
45	8.20	−34.21	0.75	1.13	86.19
55	12.40	−34.53	0.56	2.17	82.52
65	16.60	−33.53	0.27	5.07	69.47