Double Jacketed Reaction Vessels (also known as dual-jacketed or vacuum-jacketed glass reactors) are specialized laboratory and pilot-scale equipment used for conducting chemical reactions under precisely controlled temperature conditions.
Design and Function
These vessels feature three layers of borosilicate glass:
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An inner vessel holds the reaction mixture.
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An inner jacket circulates a temperature-controlled fluid (e.g., from a chiller or heater) for heating or cooling.
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An outer jacket maintains a vacuum for insulation.
This vacuum insulation minimizes heat loss/gain from the environment, prevents frosting or condensation on the exterior (ensuring clear visibility of the reaction), and enables more efficient temperature ramping, especially at extreme lows (e.g., below 0°C) or highs.
Compared to single-jacketed vessels, double-jacketed ones provide superior thermal performance and are ideal for reactions sensitive to ambient temperature fluctuations.
Common Applications
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Pharmaceutical synthesis
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Chemical R&D
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Extraction and refinement (e.g., cannabis processing)
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Distillation
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Crystallization
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Reactions requiring vacuum or inert atmospheres
They often include overhead stirring, multiple ports for additions/sampling, condensers, and are compatible with vacuum pumps and chillers.
Typical capacities range from 100 mL to 100 L+, with customizable options like PTFE lids, stirrer types, and special coatings.
* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.
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