Inhibitory Mechanism of Carbon Steel Corrosion in Sea Water by an Aqueous Extract of Henna Leaves

Table 1

Water analysis (Thondi sea water, Tamil Nadu, India).

Parameters	Result
Total dissolved salts (mg/L)	30539 ppm
Electrical conductivity (micro mhos/cm)	44910
pH	7.06
Total hardness (CaCO3 equivalent)	100 ppm
Calcium as Ca (mg/L)	19 ppm
Magnesium as Mg (mg/L)	12 ppm
Sodium as Na (mg/L)	0
Chloride as Cl (mg/L)	11400 ppm
Fluoride as F (mg/L)	0
Free ammonia as NH3 (mg/L)	0
Sulphate as SO4 (mg/L)	6708 ppm