In 2016,Chaitra, Turuvekere K.; Mohana, Kikkeri N.; Gurudatt, Doddahosuru M.; Tandon, Harmesh C. published 《Inhibition activity of new thiazole hydrazones towards mild steel corrosion in acid media by thermodynamic, electrochemical and quantum chemical methods》.Journal of the Taiwan Institute of Chemical Engineers published the findings.SDS of cas: 16982-21-1 The information in the text is summarized as follows:
The mild steel anti-corrosion potential by newly synthesized thiazole hydrazones, 4-(4-methoxy-phenyl)-thiazole-2-carboxylic acid benzylidene-hydrazide (TH-1), 4-(4-methoxy-phenyl)-thiazole-2-carboxylic acid (3-hydroxy-benzylidene)-hydrazide (TH-2) and 4-(4-methoxy-phenyl)-thiazole-2-carboxylic acid (4-hydroxy-benzylidene)-hydrazide (TH-3) in 0.5 M hydrochloric acid was studied by gravimetric and electrochem. techniques. Thermodn. parameters were evaluated for activation and adsorption processes. Adsorption of the inhibitors followed Langmuir isotherm. Electrochem. measurements showed that addition of inhibitors simultaneously decreased corrosion c.d. and double layer capacitance but increased charge transfer resistance. Potentiodynamic polarization studies revealed that thiazole hydrazones effectively suppressed both the anodic and cathodic processes of mild steel corrosion in acid solution and hence acted as mixed-type inhibitors. Quantum chem. parameters like EHOMO, ΔE, softness and hardness were very well correlated with exptl. data. SEM characterized the film formed on the mild steel. In addition to this study using Ethyl 2-amino-2-thioxoacetate, there are many other studies that have used Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1SDS of cas: 16982-21-1) was used in this study.
Ethyl 2-amino-2-thioxoacetate(cas: 16982-21-1) belongs to anime. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.SDS of cas: 16982-21-1
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics