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A T-shaped piece carrying a thermometer.
Also known as: Distilling head
A distillation head is drawn as a T- or Y-shaped glass piece joining the boiling flask to the condenser, with a socket at the top for a thermometer.
Joins the boiling flask to the condenser and positions the thermometer in the vapour path.
Contexts: Laboratory
Places the thermometer bulb level with the side arm, because the temperature that matters is that of the vapour leaving rather than the liquid boiling.
Contexts: Laboratory
A short vertical tube meeting a sloping side arm, with a socket drawn at the top of the vertical section.