This article presents data on the evaluation of Stylosanthes gracilis extract as corrosion inhibitor for 304 L in H₂SO₄ solution. The data were obtained from weight loss measurements, energy dispersive spectroscopy and X-ray diffraction studies. The extract reduced the rate of corrosion on SS 304l in H₂SO₄ solution at an optimum concentration of 1.2 g/L with inhibition efficiency of about 87.81% and corresponding surface coverage of 0.878. The corrosion rate of 0.232 mm/yr was observed in the inhibited sulphuric acid as against 1.904 mm/yr in the blank acid respectively at 240 h of exposure of the specimens. At 2400 h of exposure, the observed corrosion rate was 0.228 mm/yr with an efficiency of 74.21%. Whereas the extract's efficacy was slightly influenced by time, concentration has a profound effect on the extract's protection capability. The decrease in the efficiency of the extract after 2400 h is 13.6% suggesting the good stability with time.

本文提供了对柱花草提取物作为 H ₂ SO ₄溶液中304 L 腐蚀抑制剂的评估数据。数据来自重量损失测量、能量色散光谱和 X 射线衍射研究。该提取物降低了 SS 304l 在 H ₂ SO _{4 中}的腐蚀速率最佳浓度为 1.2 g/L 的溶液，抑制效率约为 87.81%，相应的表面覆盖率为 0.878。在样品暴露 240 小时后，在抑制硫酸中观察到的腐蚀速率为 0.232 毫米/年，而在空白酸中为 1.904 毫米/年。在暴露 2400 小时时，观察到的腐蚀率为 0.228 毫米/年，效率为 74.21%。虽然提取物的功效受时间的影响很小，但浓度对提取物的保护能力有深远的影响。2400 小时后提取物的效率降低了 13.6%，表明随着时间的推移具有良好的稳定性。