Novel synthesized triazole derivatives as effective corrosion inhibitors for carbon steel in 1M HCl solution: experimental and computational studies.

This article outlines the synthesis of two derivatives of 4-amino-5-hydrazineyl-4H-1,2,4-triazole-3-thiol for the prevention of carbon steel corrosion in 1M HCl solution. These derivatives are (Z)-3-(1-(2-(4-amino-5-mercapto-4H-1,2,4-triazol-3-yl)hydrazono)ethyl)-2H-chromen-2-one (TZ1) and 5-(2-(9H-fluoren-9-ylidene)hydrazineyl)-4-amino-4H-1,2,4-triazole-3-thiol (TZ2). Weight loss, electrochemical experiments, surface examinations, and theoretical computation are used to evaluate the effectiveness of the two compounds to be used as corrosion inhibitors. Weight loss and electrochemical studies demonstrate that these derivatives reduce the corrosion rate of carbon steel. To examine the morphology and constitution of the carbon steel surface submerged in HCl solution as well as after adding inhibitors, surface examination tests are performed. Analysis of the test solution via UV-visible spectroscopy is employed to check the possibility of complex formation between inhibitor molecules and Fe2+ ions released during the corrosion process. In order to explore their biological activity, the antibacterial activity was investigated against (E. coli and Bacillus subtilis). Finally, theoretical confirmation of the experimental findings is provided by quantum chemical (DFT) and Monte Carlo (MC) simulation studies. More adsorption sites are present in the derivatives of 4-amino-5-hydrazineyl-4H-1,2,4-triazole-3-thiol, which offer a novel perspective for developing new classes of corrosion inhibitors with substantial protective efficacy, especially at high temperatures.

Prolactin imbalance as a result of bilharzial hepatosplenomegaly.

Prolactin is an important hormone for maintenance of normal sexual life in human. Prolactin is produced in the lactotropic cells in the lateral wing of the anterior pituitary gland. Prolactin imbalance associated with bilharzial hepatosplenomegaly with subsequent infertility was carried out on sixty female patients and 30 normal controls. In bilharzial patients and 30 normal controls. In bilharzial patients with hepatosplenomegaly, there was hyperprolactinaemia in 13.33% of cases. 10% of patients suffering from bilharzial hepatosplenomegaly had primary infertility and 70% had secondary infertility more than 5 years. Galactorrhea was present in 10% of cases with bilharzial hepatosplenomegaly. There was irreversible relationship between the duration of bilharzial infection and serum prolactin level and inability to conceive, and also between the duration of bilharzial infection and endocrine manifestations as infrequency and irregularity of menstruation.