The Diffusion in Liquids and Gases ReaktiLabX - 01 studies mass transfer through diffusion in both liquid and gas phases. This Diffusion in Liquids and Gases apparatus uses a U-tube with capillaries and conductivity meter for liquid diffusion, and a heated diffusion tube with microscope monitoring for gas diffusion. It supports determination of diffusion coefficients based on Fick's law across both experimental setups. Optional DAQ software enables measurement and calculation of results.

Diffusion in Liquids and Gases ReaktiLabX - 01 — Technical Specifications
| Specification | Detail |
|---|---|
| Study Scope | Investigation of diffusion in liquids and gases |
| Liquid Diffusion Setup | Transparent tank with magnetic stirrer, conductivity meter, and U-tube with capillaries |
| Gas Diffusion Setup | Evaporation of a highly volatile solvent with a diffusion tube in a heated water bath |
| Gas Removal | Removal of gaseous solvent at the upper end of the diffusion tube with a fan |
| Temperature Control | Heater with controller and sensor for adjusting the temperature in the water bath |
| Volume Monitoring | Height-adjustable microscope for monitoring and determining the solvent volume in the diffusion tube |
| Control Unit | Separate display and control unit contains temperature controller and fan |
Technical Data
Tank with Stirrer
| Parameter | Value |
|---|---|
| Capacity | approx. 6000mL |
Magnetic Stirrer
| Parameter | Value |
|---|---|
| Speed stirrer | 0~500rpm |
| Magnetic stirrer bar | 1 |
Heater
| Parameter | Value |
|---|---|
| Heater Power | approx. 300W |
Diffusion Tube for Liquid Diffusion
| Parameter | Value |
|---|---|
| Type | U-Tube |
| Capillaries | 250~300 |
| Diameter | 1mm |
| Length | 5~8mm |
Measuring Ranges
| Parameter | Value |
|---|---|
| Temperature | 100~400°C |
| Conductivity | 0~200mS/cm |
Conductivity Meter
| Parameter | Value |
|---|---|
| Range | 0~2000uS/cm |
| Graduation | 1uS/cm |
Diffusion Tube for Gaseous Diffusion
| Parameter | Value |
|---|---|
| Diameter | 4mm |
| Length | 100mm |
| Fan | 120~320L/h |
Microscope
| Parameter | Value |
|---|---|
| Scale division | 0.1mm |
Key Features
Experiments
Construction and Design
The Diffusion in Liquids and Gases ReaktiLabX - 01 includes a transparent tank, approximately 6000mL capacity, fitted with a magnetic stirrer operating at 0 to 500rpm with a single stirrer bar, and a conductivity meter ranged 0 to 2000uS/cm with 1uS/cm graduation. A U-tube with 250 to 300 capillaries, 1mm in diameter and 5 to 8mm in length, holds the salt solution for liquid diffusion studies. For gas diffusion, a diffusion tube 4mm in diameter and 100mm in length is submerged in a heated water bath, with a heater rated approximately 300W. A fan, with flow rated 120 to 320L/h, removes gaseous solvent at the tube's upper end. A height-adjustable microscope, with a scale division of 0.1mm, monitors solvent volume in the diffusion tube. A separate display and control unit houses the temperature controller and fan controls.
Software
Software ReaktiLabX 01 (optional). DAQ software specially designed in National Instrument™, LABVIEW™ environment to measure and calculate the results of the apparatus. The software is optional; a set of electronic sensors is included when the software is used. The software can be run with any Windows™ environment.
Scope of Delivery
Q: What is the Diffusion in Liquids and Gases ReaktiLabX - 01 used for?
A: It is used to study diffusion in both liquids and gases, determining diffusion coefficients for mass transport based on Fick's law.
Q: How is diffusion studied in liquids on this apparatus?
A: A concentrated salt solution flows from a U-tube with capillaries into demineralized water, with the salt concentration measured using a conductivity meter.
Q: How is diffusion studied in gases on this apparatus?
A: A volatile solvent evaporates in a heated water bath, with the gaseous solvent diffusing into an air flow created by a fan, and the liquid solvent volume monitored using a microscope.
Q: Is data acquisition software available with this system?
A: Yes, Software ReaktiLabX 01 is available as an optional add-on, designed in National Instrument™ LABVIEW™ environment, and can run with any Windows™ environment.
Q: What is the capacity of the tank used for liquid diffusion?
A: The tank has a capacity of approximately 6000mL.