Figure 8. Plot of vs time at different temperatures for iron dissolution in HCl

From

Kinetics of Leaching of Iron Oxide in Clay in Oxalic Acid and in Hydrochloric Acid Solutions

U K Sultana, Fahmida Gulshan, A S W Kurny

Materials Science and Metallurgy Engineering. 2014, 2(1), 5-10 doi:10.12691/msme-2-1-2