Sodium Citrate as an Environmentally Friendly Corrosion Inhibitor of Steel in a Neutral Environment

Table 4

Chemical composition (in mass%) of the 09G2S surface after 24 hours of exposure to a 0.1% NaCl solution with different concentrations of sodium citrate.

(g/l)	Element
	С	О	Na	Si	Mn	Fe	Сl
0.5	8.95	21.61	5.51	0.38	0.85	60.36	2.34
1.0	8.11	22.74	—	0.79	1.72	64.80	1.84
1.5	7.74	9.98	—	0.44	0.95	73.20	1.13
2	2.65	2.52	0.86	0.74	1.00	92.06	0.17
2.5	3.30	3.04	1.28	0.56	1.16	90.36	0.29