Related Experiment Video
Updated: Jun 28, 2026

Employing Pressurized Hot Water Extraction (PHWE) to Explore Natural Products Chemistry in the Undergraduate Laboratory
Published on: November 7, 2018
Study of liquid-liquid extraction of perrhenate with cyclohexanone in different media
N Jordanov1, M Pavlova, D Bojkova
1Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 13, Bulgaria.
Abstract:
A study has been made of the extraction of ReO(4)(-) from the following media: nitric, hydrochloric, sulphuric and phosphoric acids, and sodium nitrate, chloride, sulphate, carbonate and hydroxide solutions. The extraction curves were obtained and hydration and solvation numbers determined. It is concluded that in acidic medium the extraction follows a hydratosolvate mechanism; in neutral and alkaline medium only a solvate mechanism is observed. Similar investigations were carried out with molybdenum(VI). The separation of rhenium and molybdenum is discussed.
Related Concept Videos
Extraction: Advanced Methods
High-Performance Liquid Chromatography: Elution Process
High-Performance Liquid Chromatography: Introduction
In HPLC, two phases play a critical role in the separation process:
High-Performance Liquid Chromatography: Instrumentation
Extraction: Partition and Distribution Coefficients
For extracting a solute from an aqueous phase into an organic...
Gas Chromatography: Types of Columns and Stationary Phases
For an analyte to remain on the column for a sufficient amount of time, it must exhibit some level of compatibility (or...

