Moustafa F. Bakr

TL;DR: In this paper , two nonionic surfactants were prepared followed by structure confirmation using H1NMR, IR and so their surface activity were studied and the application of these compounds in the field of acid corrosion inhibitors was investigated by several empirical and computational methods.

TL;DR: In this article, the interactions between the amino acids (glycine and l -threonine) with some rare earth metal ions (Pr3+, Nd3+, Eu3+, Gd3, Dy3+, Ho3+ and Yb3+) were studied at a wide range from ionic strengths (0.07-0.32 m KNO3) and temperatures (25-45 m K NO3) in aqueous solutions by using Bjerrum potentiometric method.

TL;DR: In this paper, conductivity measurements for some alkaline earth metal salts were reported in the concentration range in dioxane-water mixtures at mass fraction of 0, 3, 10, 20 and 30% at 30°, 35°, 40° and 45°C ± 0.01.

TL;DR: In this paper, the stability constants of Mg 2, Ca 2 +, Sr 2 + and Ba 2 + perchlorates with 2,4-diamino-3,5-dicyanothiophene (DADCT) have been determined at 15, 25, 35, 45 and 55 °C in 10, 20 and 30% (w/w) propanol-1-water mixtures using the conductometric technique.

TL;DR: In this article, the conductivity of some transition metal perchlorates, M(ClO 4 ) 2 (M 2 + = Mn, Co, Ni, Cu and Zn) has been measured in urea-water mixtures at 288-318 K. The limiting molar conductivities and the ion association constant of these electrolytes were calculated by the Shedlovsky extrapolation method.