CORROSION INHIBITION PERFORMANCE OF PINK, ORANGE AND WHITE COLOURED BOUGAINVILLEA GLABRA BRACT EXTRACT ON MILD STEEL IN 1N HCl
- Bougainvillea glabra bract, hydrochloric acid, mild steel, weight loss, FTIR.
Abstract
The present study was undertaken to find out the phytochemicals present in Bougainvillea glabra bracts extract and to compare the corrosion inhibition efficiency between B.glabra Pink, Orange and White coloured bract extract on mild steel in 1N HCl. Phyto chemical analysis showed the presence of alkaloids, flavonoids, phenolic compounds and tannins in the extract as confirmed by implying different qualitative tests specified for these phytochemical. Corrosion rate, inhibition efficiency, FTIR analysis was determined. The corrosion of mild steel in 1N HCl acid media was significantly reduced upon the additions of BG bract extracts. The inhibition efficiency increased with the increasing concentration of the inhibitor. Maximum inhibition efficiency was observed at an optimum concentration of 2 % v/v.