Rotary Evaporator - 0.5L
Compact 0.5L rotary evaporator for small-scale solvent removal and sample concentration with variable rotation speed and temperature control up to 99°C.
| Automation Level | manual |
The Rotary Evaporator - 0.5L is a compact benchtop instrument designed for small-scale solvent evaporation and sample concentration applications. This budget-friendly rotovap employs vacuum distillation principles to enable gentle removal of solvents at reduced temperatures, making it suitable for heat-sensitive compounds and routine laboratory operations requiring precise evaporation control.
The system operates with rotation speeds from 0-120 RPM and achieves vacuum levels up to -0.098 MPa, providing controlled evaporation conditions for sample volumes up to 0.5L. The heating bath operates from room temperature to 99°C with 1 kW heating power, offering sufficient thermal input for most common organic solvents while maintaining gentle processing conditions.
How It Works
Rotary evaporation operates on the principle of reducing solvent boiling points through vacuum application while increasing surface area through flask rotation. The rotating motion creates a thin film of liquid on the flask walls, dramatically increasing the surface area available for evaporation compared to static distillation methods.
The combination of reduced pressure (up to -0.098 MPa vacuum) and controlled heating (RT to 99°C) allows solvents to evaporate at temperatures well below their atmospheric boiling points. This gentle process minimizes thermal decomposition of heat-sensitive compounds while enabling efficient solvent removal. The evaporated solvent is condensed in a cold trap and collected in the receiving flask, effectively concentrating the remaining sample.
The variable rotation speed (0-120 RPM) allows optimization for different solvent types and sample viscosities, with higher rotation speeds generally improving evaporation efficiency for low-viscosity solutions.
Features & Benefits
Automation Level
- manual
Research Domain
- Analytical Chemistry
- Environmental Monitoring
- Food Science
- Materials Science
- Pharmaceutical QC
Weight
- 23.0 kg
Dimensions
- L: 42.0 mm
- W: 43.6 mm
- H: 38.0 mm
Comparison Guide
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Collection Flask Capacity | 0.5L capacity | Entry-level models often range from 0.25L to 1L capacity | Provides adequate volume for small-scale laboratory work while maintaining compact footprint. |
| Rotation Speed Range | 0-120 RPM variable control | Basic models may offer fixed speeds or narrower ranges | Variable speed control allows optimization for different solvent types and sample viscosities. |
| Maximum Operating Temperature | Room temperature to 99°C | Budget models may have lower maximum temperatures | Sufficient temperature range covers most common organic solvents while protecting heat-sensitive compounds. |
| Vacuum Performance | -0.098 MPa maximum vacuum | Lower-cost units may achieve less vacuum depth | Strong vacuum capability enables lower evaporation temperatures and better process control. |
| Heating Power | 1 kW heating capacity | Compact models typically offer 0.5-1.5 kW heating power | Adequate power for efficient heating while maintaining precise temperature control. |
This 0.5L rotary evaporator provides essential features for small-scale laboratory applications with variable rotation control, adequate vacuum performance, and sufficient heating capacity. The compact design and budget-friendly approach make it accessible for routine solvent removal tasks without compromising core functionality.
Practical Tips
Always start with low rotation speeds and gradually increase to prevent sample splashing and optimize evaporation efficiency.
Why: Prevents sample loss and allows identification of optimal operating parameters for each solvent type.
Ensure adequate ventilation and use appropriate cold traps to prevent solvent vapors from reaching the vacuum pump.
Why: Protects laboratory personnel and prevents vacuum pump contamination with condensable vapors.
Clean glassware immediately after use and inspect ground glass joints regularly for chips or scratches.
Why: Prevents contamination and maintains vacuum integrity for consistent performance.
Verify temperature accuracy periodically using a calibrated thermometer in the heating bath.
Why: Ensures reproducible processing conditions and protects heat-sensitive samples from overheating.
If evaporation rates are slow, check vacuum connections, clean condenser surfaces, and verify heating bath temperature.
Why: Poor vacuum or inefficient condensation are common causes of reduced evaporation efficiency.
Record rotation speed, temperature, and vacuum level settings for each sample type to develop standard operating procedures.
Why: Enables reproducible results and faster setup for routine applications.
Use boiling chips or stirring bars for samples prone to superheating or bumping during evaporation.
Why: Provides nucleation sites for smooth evaporation and prevents sudden violent boiling.
Setup Guide
What’s in the Box
- Main rotary evaporator unit (typical)
- Evaporation flask with ground glass joint (typical)
- Condenser assembly (typical)
- Collection flask 0.5L (typical)
- Heating bath (typical)
- Power cord (typical)
- Operating manual (typical)
- Basic maintenance kit (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship, with technical support available for operational guidance and troubleshooting assistance.
Compliance
What is the maximum sample volume that can be processed effectively?
The 0.5L collection flask should be filled no more than 50% capacity (approximately 250mL) to prevent sample bumping and ensure efficient evaporation.
Which solvents can be safely evaporated with the 99°C maximum temperature?
Most common organic solvents including methanol, ethanol, acetone, dichloromethane, and ethyl acetate can be evaporated well below 99°C under vacuum conditions.
What type of vacuum pump is required for optimal performance?
A diaphragm or rotary vane vacuum pump capable of achieving at least -0.098 MPa is required; consult product datasheet for specific pump recommendations and flow rate requirements.
How do I prevent sample bumping during evaporation?
Use moderate rotation speeds (40-80 RPM initially), avoid overfilling the flask, apply vacuum gradually, and consider using boiling chips or anti-bumping devices for problematic samples.
What maintenance is required for reliable operation?
Regular cleaning of glassware, periodic replacement of vacuum seals, and routine inspection of heating bath fluid levels are essential for consistent performance.
Can this unit handle aqueous solutions effectively?
Yes, but evaporation rates will be slower due to water's higher heat of vaporization; ensure adequate vacuum and consider longer processing times.
What ground glass joint sizes are compatible?
Consult product datasheet for specific joint sizes and compatibility with standard laboratory glassware sets.
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