Abstract: The inhibitive action of a composite thiadiazole inhibitor(TSJ-T6) against the corrosion of silver in solutions of simulation jet fuel has been studied using the method of mass gain and metallographic microscopy. All experimental results showed that TSJ-T6 has an excellent corrosion inhibition performance and the most effective concentration of inhibitor is 10.0 μg/g, when the inhibition efficiency can reach 94.37%. The adsorption of TSJ-T6 on the surface of silver strip obeys the Langmuir adsorption isotherm, and the thermodynamic parameters were determined and discussed. The kinetic parameters were calculated by the obtained corrosion inhibition rates at different temperatures.

Key words: Thiadiazole, Sulfur, Silver, Inhibition, Adsorption