Distilling Head glass Claisen distillation adapter, a piece of laboratory glassware used in distillation and reaction setups. A Claisen Distillation Adapter is a multi-purpose "Y-shaped" glass connector that adds an extra vertical neck to a distillation setup. This design is essential for complex reactions where you need to monitor temperature while simultaneously adding reagents or using a mechanical stirrer.
Key Features
- Design: Features two vertical parallel necks and one angled side-arm (usually at 75°).
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Joints: Typically equipped with three or four ground glass joints (e.g., 24/29 or 14/23):
- Bottom (Cone): Connects to the boiling flask.
- Direct Vertical (Socket): Used for a dropping funnel, stirrer, or addition tube.
- Second Vertical (Socket): Used for a thermometer adapter.
- Angled Side-arm (Cone): Connects to the condenser.
- Material: High-quality Borosilicate Glass 3.3 for maximum thermal shock and chemical resistance.
Core Applications
- Vigorous Boiling Control: The extra "neck" acts as a buffer to prevent liquid from splashing directly into the condenser (anti-splash).
- Vacuum Distillation: Ideal for setups requiring a capillary tube to be inserted into the boiling flask to prevent "bumping" under reduced pressure.
- Simultaneous Access: Allows the chemist to add liquids through a dropping funnel without stopping the distillation or removing the thermometer.
Usage Tips
- Vapour Path: Place the thermometer in the neck closest to the angled side-arm to get the most accurate reading of the vapours actually entering the condenser.
- Safety: Because Claisen adapters are top-heavy, ensure the boiling flask and the condenser are both independently supported by retort stands and clamps.
- Sealing: Apply a light coating of vacuum grease to all joints to ensure an airtight seal, especially during vacuum-assisted experiments.
Specifications:
- Material: 3.3 Borosilicate glass
- Neck: Ground glass joint (socket)
- Joint Sizes: 19/26, 24/29, 29/32 (Select an option)
- Brand: NONE
- Product of China