Natural Polymer of Iraqi Apricot Tree Gum as a Novel Corrosion Inhibitor for Mild Steel in 1 M HCl Solution

Table 2

CR and inhibition efficiency (%) of mild steel in 1 M HCl for various inhibitor concentrations at various temperatures.

System/concentration	CR (mg/cm^2·h)			Inhibition efficiency (%)
	17°C	30°C	40°C	17°C	30°C	40°C
Blank	5.744792	22.74479	43.625	—	—	—
0.1 g/L	4.5	14.23438	16.49479	21.66818	37.41699	62.18959
0.2 g/L	3.864583	13.30729	14.54688	32.72892	41.49302	66.65473
0.3 g/L	3.791667	11.11979	11.51563	33.99819	51.1106	73.60315