“…sulfuric acid [14]. Uncaria gambir [3], Psidium guajava [4], Jasminum nudiflorum [5], Dendrocal massinicus [6], Salvia officinalis [7], Silybum marianum [8], Justicia gendarussa [12], Aniba rosaedora [15], Chamaemelum mixtum L., Cymbopogon proximus, Nigella sativa L., Phaselous vulgaris L. [16], Murraya koenigii [17], Nauclea latifolia [18], Mansoa alliacea [19] and Capsicum annuum L. extracts also have been reported as corrosion inhibitors. Notably, the C. annuum L. extract can inhibit the corrosion rate up to 85% in 1400 mg/L hydrochloric acid media.…”