Dissolution Behavior and Phase Evolution During Aluminum Oxide Dissolution in BOF Slag

Chemical behavior of aluminum and phosphorus during dissolution of glass fibers in physiological saline solutions.

The dissolution of textile glass fibers of four different compositions has been investigated at 37 degrees C. In these glasses, which are isolation type, the P2O5 contents scatter between 0 and 2 wt% and Al2O3 from 0.12 to 3.4 wt%. Both static (30-mg fibers; 250-ml solution) and dynamic (50-mg fibers; 40 ml/day flow rate) conditions with or without bubbling of a gas mixture (95:5, N2-CO2) have ...

Behavior of Uranium(VI) during HEDPA Leaching for Aluminum Dissolution in Tank Waste Sludges

Batch adsorption/dissolution experiments were conducted to examine the interactions between U(VI) and a synthetic aluminum oxyhydroxide (boehmite, γ-AlOOH) in 1.0M NaCl suspensions containing 1-hydroxyethane-1,1-diphosphonic acid (HEDPA). In the pH range 4 to 9, complexation of Al(III) by HEDPA significantly enhanced dissolution of boehmite. This phenomenon was especially pronounced in the neut...

Dissolution of amorphous silicon into solid aluminum

Metal films are known to dissolve crystalline semiconductors at temperatures well below the eutectic temperature. Dissolution and transport of common semiconductors in contact with Au films have been demonstrated at room temperature. 1 The solid AI metallization used in electronic devices is known to dissolve troublesome quantities of crystalline Si after heat treatment at 400oC.2 Metal films a...

Kinetics of spinel formation and growth during dissolution of MgO in CaO-Al2O3-SiO2 slag

History and Evolution of the Dissolution Test

INTRODUCTION The release of the drug substance from a solid dosage form has a major impact on its rate and extent of absorption. In certain instances, as is the case with modified-release formulations, the rate-limiting step in the appearance of the drug in the systemic circulation is its release from the formulation. In the vast majority of cases, in vitro dissolution of an immediate-release p...