EVALUATION OF EXPIRED AUGMENTINE DRUGS AS CORROSION INHIITOR FOR CARBON STEEL ALLOY IN 1.0 N HCl ACIDIC ENVIRONMENT USING ANALYTICAL TECHNIQUES

Abstract

Augmentin is a chemical mixture component medicine (co medicine) known as co-amoxiclav and it is a famous antibiotic used for treatment of a number of bacterial infections, it is so dangerous to be left in the environment after its expired as it is harmful to the child's, so the present work introduces an idea for using it in the expired form as green corrosion inhibitor for steel in 1.0 N HCl. Five analytical techniques were used to evaluate the inhibition performance of the expired co-amoiclav drugs namely gravimetric, atomic absorption spectroscopy(AAS), thermometric, gasometric, and acidimetric technique. Effect of expired drug dose, reaction temperature, and pH were studied. The corrosion inhibition was found to increase by increasing concentration and decreased with rising the temperature and by lowering pH. The maximum inhibition is (96.5 % at 300 ppm. The used techniques are in good agreement to each other's (±2 %) indicating the possibility of the using of the expired Augmentin drugs as potential nontoxic green corrosion inhibitor for steel in an industrial field like steel used for application in petroleum industry at lower pH.

Manufacturing of Corrosion Inhibitors and Flow Improvers from Recycling of Waste at Hail City, Saudi Arabia: Physicochemical and Electrochemical Studies on Steel in Petroleum Industries

“…All experiments and measurements were carried out at room temperature in an agitated or still environment. Charge-transfer resistance, denoted as Rp in the Nyquist plot impedance data, was used to assess the inhibitory efficiency. − …”

“…Corrosion inhibitors are substances that are added in very small quantities for limiting the corrosion process by either inhibiting the anode or cathode reactions or both. − Corrosion inhibitors contain effective functional groups that enable them to be adsorbed on the metal surface such as hydroxyl and amine groups, as well as oxygen, nitrogen, sulfur, and heterocyclic materials. Organic and inorganic materials have been used as metal corrosion inhibitors in acidic, alkaline, and saline corrosive media and marine environments. − Environmental waste is recycled, and the results of recycling are used as metal corrosion inhibitors, whereas the waste of PET and PEAA plastics is recycled, and the recycled products are used as corrosion inhibitors for carbon steel used in the petroleum industry in acidic media and marine environments. − The surfactant materials prepared from plastic waste had an effective activity in adsorption on the surface of metals and protection of metals from corrosion, − as well as expired drugs were used as inhibitors. − Polymeric materials and heterocyclic compounds − were used to protect metals from corrosion. Corrosion of metals is a pervasive process related to the industry and to the daily use of metals in the environment.…”

Synthesis, characterization, and evaluation of polymeric surfactants derived from PET plastic waste as green corrosion inhibitor of steel surfaces in marine environment for heavy industry

“…Thermometric measurements depend on measuring the temperature variation during the reaction of a metal with a test piece with a definite volume of a corroding solution. 34–39 The variation in the temperature of the system was monitored with time, and the reaction number (RN) is defined as 34–39 RN (°C min −1 ) = ( T m − T i )/ t m where T m and T i are the maximum and initial temperatures, respectively, t m is the time in minutes taken to attain the maximum temperature.…”

“…We dissolved the corrosive medium with aqua regia in order to measure the amounts of iron in the corrosive solution, both when the inhibitor was absent and present. [34][35][36][37][38][39]…”

Efficiency of Expired Drugs Used as Corrosion Inhibitors: A Review

“…In the same conditions, considerable results have been obtained with expired Aripiprazole: 93.1% (WL), 94.8% (PDP) and 95.1% (EIS) [ 91 ]. Recently, better IE s have been reported for expired Augmentine: 97.8% (WL), 97.1% (PDP) and 98.0% (ACI) [ 92 ]; for expired Immulant: 97.5% (PDP) and 95.3% (EIS) [ 99 ]; as well as for expired Omeprazole: 96.6% (WL), 98.7% (PDP) and 98.0% (EIS) [ 105 ].…”