RDS 350-Rotating disk reactor


The RDR-350 permits reaction rate studies between various fluids and solid surfaces. The apparatus consists of a rock disk rotating at constant velocity in a hermetic chamber filled with reactive fluid. The amplitude of mass transfer and chemical reactions can be adjusted with rotational speed and experimental temperature. Bulk reactant concentration is measured at specified time intervals via atomic absorption spectrophotometry. The global reaction rate at a given angular velocity is computed from the change in reactant concentration over time. The experiment is then repeated at different angular velocities to obtain the reaction rate as a function of angular velocity. Additional experiments at different temperatures or different test fluid concentrations can also be performed to obtain the full rate law for the reaction system.

For more information, please visit Floxlab's website: floxlab


Maximum pressure : 5,000 psi
Maximum  temperature : 250°C 
Reaction vessel volume : 500 ml
Reservoir vessel volume: 500 ml
Sample disk  diameter : 1.5" (38.4 mm)
Sample disk thickness : 1 inch (25.4 mm)
Disk rotational speed:100 to 2,000 RPM
Material:  hastelloy
Power supply : 220VAC, 50Hz 
N2 pressure requirements : 2,000 psi
Air Pressure requirements :150 psi, dry


*Semi-automated instrument
*Rapid, accurate and reproducible data
*Acid-resistant material
*Small test fluid volume required