• Saifee K. Fatima
• Filmwala Zoeb. A
• Hussain Kaneez. F

Hexamethylenetetramine (HMTA) was found suitable as corrosion inhibitor on mild steel in Brackish Water (BRW) by weight loss methods with respect to time, concentration and temperature measurements. Corrosion Inhibitor film efficiency depends on the chemical concentration and contact time with the surface of mild steel. As the temperature increases Corrosion Rate increases but mostly Inhibition Efficiency decreases. Thermodynamic factors show that the adsorption on mild steel followed both physio-chemical adsorption mechanisms. Synergetic effect of potassium iodide (KI) in corrosive media has been found to stabilize the adsorption, leading to improved inhibition efficiency and found to control general and pitting corrosion rate to maximum extent. Hexamethylenetetramine has been studied by keeping consideration of International Standard procedures i.e. NACE SP-0775 2013 and ASTM G1–03. The results were supplemented with scanning electron microscopy (SEM) and infra-red (IR) spectroscopy. The results showed that HMTA is a good corrosion inhibitor.

Key Words: Hexamethylenetetramine (HMTA), Brackish Water (BRW) Potassium Iodide (KI), scanning electron microscopy (SEM).

"Inhibitive Effect of Hexamethylenetetramine on Mild Steel in Brackish Water", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.519-532, March-2019, Available :http://www.jetir.org/papers/JETIR1903372.pdf

"Inhibitive Effect of Hexamethylenetetramine on Mild Steel in Brackish Water", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp519-532, March-2019, Available at : http://www.jetir.org/papers/JETIR1903372.pdf