research centers


Search results: Found 2

Listing 1 - 2 of 2
Sort by

Article
Phenyl Thiourea as Corrosion Inhibitor for Mild Steel in Strong Hydrochloric Acid

Authors: Aprael S. Yaro ابرائيل سركيس يارو --- Dhuha A. Abdulaaima
Journal: Iraqi Journal of Chemical and Petroleum Engineering المجلة العراقية للهندسة الكيمياوية وهندسة النفط ISSN: 19974884/E26180707 Year: 2012 Volume: 13 Issue: 2 Pages: 1-9
Publisher: Baghdad University جامعة بغداد

Loading...
Loading...
Abstract

The inhibitive action of Phenyl Thiourea (PTU) on the corrosion of mild steel in strong Hydrochloric acid, HCl, has been investigated by weight loss and potentiostatic polarization. The effect of PTU concentration, HCl concentration, and temperature on corrosion rate of mild steel were verified using 2 levels factorial design and surface response analysis through weight loss approach, while the electrochemical measurements were used to study the behavior of mild steel in 5-7N HCl at temperatures 30, 40 and 50 °C, in absence and presence of PTU. It was verified that all variables and their interaction were statistically significant. The adsorption of (PTU) is found to obey the Langmuir adsorption isotherm. The effect of temperature on the adsorption process showed that the adsorption process is exothermic, spontaneous and represents mixed chemical and physical adsorption for PTU on the metal surface.


Article
Synthesis , characterize and biological studies of (Cr(III) ,Mn(II) ,Zn(II)and Cd(II)) complexs with Schiff-base ligand
معقدات احادية النواة الجديدة مع قاعدة شف تحضير ، تشخيص و دراسة الفعالية البايلوجية

Loading...
Loading...
Abstract

The new multidentate Schiff-base ligand (2,6-bis-[(3-phenyl thioureaimino)-methyl]-phenol) HL and its monomeric metal complexes with Cr(III) ,Mn(II) ,Zn(II)and Cd(II) are reported. The ligand HL was derived from the condensa

تضمن البحث تحضير الليكاند الجديد قاعدة شف[2,6-bis-[(3-phenyl thiourea-imino)-methyl]-phenol] (HL)المشتق من 2,6-diformyl-4-methyl-phenol 4- و phenylthiosemicarbazideثم مفاعلة مع بعض العناصر الفلزية باستخدام الميثانول وسطا للتفاعل وبنسبة(1:1) حيث تكونت معقدات جديدة ذات الصيغ العامة [M (L)Cl] Cl[M (L)Cl], [M (L)]Clحيث:M =Cr III ,Mn II, Zn II and Cd IIشخصت جميع المركبات بالطرق الطيفية التالية( الاشعة تحت الحمراء والاشعة فوق البنفسجية - المرثية ومطيافية الامتصاص الذري للعناصر H NMR،13Cومحتوى الكلور ودرجات الانصهار ) مع قياس التوصيلية المولارية الكهربائية و الفعالية البايلوجية .، من النتائج أعلاه كان الشكل الفراغي المقترح لمعقدات الكروم ، المنغنيز والكادميومثماني السطوح بينما الزنك يتخذ شكل خماسي التناسق

Listing 1 - 2 of 2
Sort by
Narrow your search

Resource type

article (2)


Language

English (2)


Year
From To Submit

2012 (2)