Investigation of Initial Atmospheric Corrosion of Carbon and Weathering Steels Exposed to Urban Atmospheres in Myanmar

Table 2

Chemical cleaning procedure and solution for removal of corrosion products.

Material	Chemical	Time	Temperature	Remarks
Iron and steel	(i) 500 ml hydrochloric acid; (ii) 3.5 g hexamethylenetetramine; (iii) distilled water to make 1000 ml	10 min	20 °C to 25°C	Longer time may be required in certain circumstances