Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Abstract

Chemical constituents and corrosion inhibition of m ild steel by the essential oil of Thymus algeriensis in 1.0 M hydrochloric acid solution

Author(s): I. Hamdani 1 , E. El Ouariachi 1 , O. Mokhtari 2 , A. Salhi 1 , N. Chahboun 3,4 , B. ElMahi 1 , A. Bouyanzer 1 , A. Zarrouk 1 , B. Hammouti 1 and J. Costa

Essential oil of aerial parts of Thymus algeriensis was obtained by hydrodistillation and analyzed by G C and GC/MS. 44 components were identified accounting 90. 2% of the total oil, which borneol (28%), camphene (20.9%) and camphre (15.7%) were the major compounds. Inhib ition effect of this essential oil (EOTA) on mild m ild steel in 1.0 M HCl solution was studied. Inhibition efficien cy of plant extracts were carried out by using chem ical (weight loss method) and electrochemical techniques (potent iodynamic polarization and electrochemical impedanc e spectroscopy). The effect of temperature on the cor rosion behavior of mild steel in 1.0 M HCl with add ition of plant extracts was studied in the temperature range of 30 8 - 343 K. The adsorption and kinetic parameters f or mild steel/EOTA/1.0 M HCl system were calculated from ex perimental gravimetric data and the interpretation of the results are given. The polarization studies showed that J EOTA acts as mixed-type inhibitor. The Nyqui st plots showed that on increasing EOTA concentration, incre ases charge transfer resistance and decreases doubl e layer capacitance. EOTA obeys the Langmuir adsorption iso therm.


PDF

FIND ARTICLES
SCImago Journal & Country Rank
Recommended Conferences
bornova escort karşıyaka escort osmangazi escort buca escort anne porno fetiş porno anal porno bartın escort burdur escort eskişehir escort escort izmir bursa escort porno escort bayan