Complex formation in 2-polyvinylpyridine–iodine solutions

‏‎suppression of coke formation in thermal cracking by coke inhibitors‎‏

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

The formation of fibrils from collagen solutions. 2. A mechanism of collagen-fibril formation.

Theoretical Predictions of Hydrolysis and Complex Formation of Element 104, Rf, in HF and HCl Solutions

The accumulated results on the extraction behaviour of element 104, Rf, from HF and HCl solutions have revealed quite a number of surprises and disagreements between separate measurements (for a review, see ref. [1]). Another open question was that of hydrolysis of Rf, where two types of experiments [2,3] revealed different trends for Zr, Hf and Rf. To clear those points, our theoretical resear...

A Polarographic Study of Uranyl-Salicylate and Uranyl-Phthalate Complex Formation in Acidie Solutions

The d. c. and a. c. polarography and cyclic voltammetry were applied to the study of uranyl-salicylate and uranyl-phthalate complexes. The study was limited to the pH range <5, because insoluble uranyl-hydroxydes are formed above this pH value. Uranyl-salicylate and -phthalate are irreversibly reduced. The electrode process is preceded by the chemical reaction of the complex with protons. By th...

Copper deposition onto silicon by galvanic displacement: Effect of Cu complex formation in NH4F solutions

Copper was deposited onto rotating Si substrates by galvanic displacement in 6.0M NH4F to determine the effects of Cu complex formation on deposition rates. Deposition rates decreased with increasing rotation speed, indicating that Cu(I) intermediates, stabilized by NH3, diffuse away from the Cu surface before they reduce to Cu(0). UV–visible spectra of contacting solutions and direct measureme...