Table 4 “Adsorption parameters for CPS extract on CS surface at different temperatures”.

From: Insight into the anti-corrosion performance of capparis spinoza extract as a green corrosion inhibitor for carbon steel in hydrochloric acid environment

Temp, °C

Log Kads

-ΔGoads,

kJ mol─1

ΔHoads,

kJ mol─1

-ΔSoads,

J mol─1 K─1

25

4.92 ± 0.022

38.1 ± 0.1647

27.5

219 ± 0.2333

30

5.69 ± 0.016

43.1 ± 0.1574

233 ± 0.2028

35

5.91 ± 0.017

45.1 ± 0.1321

235 ± 0.1453

40

6.04 ± 0.014

46.7 ± 0.1654

236 ± 0.1732

45

6.35 ± 0.019

49.3 ± 0.1124

241 ± 0.1847

Back to article page