Experimental and Theoretical Studies on the Corrosion Inhibition of Brass in Hydrochloric Acid by N-(4-((4-Benzhydryl Piperazin-1-yl) Methyl Carbamoyl) Phenyl) Furan-2-Carboxamide

Table 1

Weight loss measurements of brass in IM HCl with BFC from 30°C to 60°C.

S.No.	Temp. (°C)	Con. of inhibitor (mM)	Corrosion rate (mmpy)	Surface coverage(θ)	Inhibition efficiency (I.E)%
1	30°C	Blank	35.781	-	-
		0.20	15.742	0.4278	42.78
		0.40	13.552	0.4566	45.66
		0.60	9.840	0.4610	46.10
		0.80	7.174	0.5052	50.52
		1.01	6.711	0.5676	56.76
		1.21	5.061	0.6018	60.18
		1.41	4.770	0.6149	61.49
2	40°C	Blank	65.517	-	-
		0.20	18.731	0.4681	46.81
		0.40	16.874	0.4707	47.07
		0.60	15.364	0.4935	49.35
		0.80	12.809	0.5309	53.09
		1.01	9.781	0.5866	58.66
		1.21	6.846	0.6211	62.11
		1.41	5.224	0.6324	63.24
3	50°C	Blank	98.182	-	-
		0.20	50.175	0.4920	49.20
		0.40	48.011	0.5013	50.13
		0.60	43.521	0.5367	53.67
		0.80	37.540	0.5671	56.71
		1.01	35.839	0.5930	59.30
		1.21	29.743	0.6388	63.88
		1.41	22.585	0.6500	65.00
4	60°C	Blank	468.822	-	-
		0.20	62.743	0.5486	54.86
		0.40	58.770	0.5637	56.37
		0.60	50.982	0.6053	60.53
		0.80	46.418	0.6652	66.50
		1.01	44.730	0.7192	71.92
		1.21	36.641	0.7632	76.32
		1.41	30.150	0.7737	77.37