24/40 Vigreux Distilling Columns
Manufacturer: United Scientific
The Vigreux Distilling Column from United Scientific is a specialized air condenser designed to improve the separation of liquid mixtures with close boiling points. The column features a series of downward-pointing indentations along the interior of the glass tube. This modification dramatically increases the internal surface area per unit length, allowing for multiple condensation and evaporation cycles (theoretical plates) as vapors rise through the column.
Description
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Features:
- Superior Separation: The indentations facilitate "refluxing," where heavier vapors condense on the glass spikes and wash back down, resulting in a significantly purer distillate compared to a standard straight-tube column.
- Standardized Compatibility: All models feature 24/40 ground glass joints, ensuring a perfect, grease-compatible fit with standard boiling flasks, still heads, and condensers.
- Passive Operation: Operates efficiently as an air condenser without the need for active water cooling, making it ideal for high-boiling point liquids that might crack a water-cooled condenser.
- Thermal Durability: Constructed from heavy-walled borosilicate glass to withstand the high temperatures required for industrial and research distillation.
Usage & Optimization Tips:
- Maximize Efficiency: For maximum separation (purity), wrap the exterior of the Vigreux column in aluminum foil or specialized insulation to maintain a temperature gradient and prevent premature flooding.
- Vertical Alignment: Ensure the column is perfectly vertical during operation. This allows the refluxing liquid to flow evenly over the indentations, maximizing the surface-area-to-vapor contact.
- Cleaning: Clean immediately after use with an appropriate solvent to prevent residue buildup between the glass indentations, which can be difficult to remove once dry.
The Vigreux Distilling Column from United Scientific is a specialized air condenser designed to improve the separation of liquid mixtures with close boiling points. The column features a series of downward-pointing indentations along the interior of the glass tube. This modification dramatically increases the internal surface area per unit length, allowing for multiple condensation and evaporation cycles (theoretical plates) as vapors rise through the column.
Starting at $51.85
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