Inhibition of Corrosion of Aluminium in Potassium Hydroxide Solution by Pyridine Derivatives

Table 2

Inhibition efficiency of 3-nitropyridine.

Sr. number	Time (min)	Inhibition efficiency (%) of 3-nitropyridine
		1.0 × 10^−4 mol L^−1	2.0 × 10^−4 mol L^−1	3.0 × 10^−4 mol L^−1	4.0 × 10^−4 mol L^−1	5.0 × 10^−4 mol L^−1
1	10	20.31	35.55	50.29	59.67	73.63
2	20	15.50	33.29	46.38	56.75	66.18
3	30	11.68	33.83	43.14	53.75	59.56
4	40	9.61	35.30	45.21	53.39	60.59
5	50	10.42	24.63	31.04	37.36	45.50
6	60	13.80	23.76	33.95	39.89	46.31