Label the Distillation Apparatus Diagram

A simple distillation set-up with eight numbers on it, to print and label.

Label the Distillation Apparatus Diagram

Name Date

Numbered worksheet

1 2 3 4 5 6 7 8
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Write the name of each numbered part.Answer key

  1. Condenser
  2. Thermometer
  3. Distilling flask
  4. Receiving flask
  5. Distillate
  6. Still head
  7. Vacuum adapter
  8. Thermometer adapter

Own drawing from plain geometry. Licence: own work.

Each numbered ring is a button. Use the arrow keys to move between them and Enter to choose. Names are read out in Study, and once a part is answered.

Next step The labeled set-up, and what each part does

All 8 parts on the diagram

Show the list

Boiling 4

  1. Thermometer Shows the boiling point of what is coming over.
  2. Distilling flask Holds the mixture that is boiled.
  3. Still head Joins the flask to the condenser.
  4. Thermometer adapter Holds the thermometer in the top of the still head.

Cooling and collecting 4

  1. Condenser Cools the vapor back into a liquid. Water runs through its jacket.
  2. Receiving flask Catches the liquid that comes out of the condenser.
  3. Distillate The liquid that was boiled off and condensed.
  4. Vacuum adapter Leads the liquid down into the receiving flask.

How this list was compiled: Every name checked on 2026-09-30 and kept only where at least two of these use it. (1) Wikipedia, Distillation and Condenser (laboratory), https://en.wikipedia.org/wiki/Distillation : the flask holding the mixture to be boiled (still pot), the head of the still, the thermometer, the condenser cooled by water, the receiving flask, the adapter with a connection that can take a vacuum pump, the distillate. (2) Teaching and Learning Distillation in Chemistry Laboratory Courses (ERIC ED368572), full text at https://archive.org/details/ERIC_ED368572 : distilling flask, thermometer, condenser, receiving flasks, distillate. (3) Search-result passages of three organic chemistry laboratory manuals on archive.org, for the glassware names: https://archive.org/details/makingconnection0000anne (distilling flask, distillation head, thermometer adapter, water condenser, vacuum takeoff adapter), https://archive.org/details/studentscompanio0000john (still head, thermometer, thermometer adapter, condenser, vacuum adapter, receiving vessel) and https://archive.org/details/laboratorymethod0000marm (condenser, receiver, adapter). Licence: own work

The drawing: Own drawing from plain geometry; nothing traced. Licence: own work

How it works

Label the distillation apparatus diagram by number: eight rings, each with a line for its name. Four are on the boiling side at the left, four on the cooling and collecting side.

Read the full guide

Distillation apparatus word bank

In alphabetical order: condenser, distillate, distilling flask, receiving flask, still head, thermometer, thermometer adapter, vacuum adapter.

Numbers that get swapped

Three lines end close together at the top left: 2 is the thin marked rod (thermometer), 8 the short collar it passes through (thermometer adapter) and 6 the upright tube under the collar (still head). At the right, 4 ends on the glass of the cone-shaped flask (receiving flask) and 5 on the liquid inside it (distillate). 3 is the round flask in the heater (distilling flask). 1 is the long sloping tube in its jacket (condenser), 7 the bent tube at its low end (vacuum adapter).

  • When marking, round-bottom flask or boiling flask is right on line 3, and receiver or collecting flask on line 4.
  • The heater under the flask, the two water hoses and the stands are drawn but carry no number.

Questions and answers

What is the difference between a simple and a fractional distillation apparatus?

In simple distillation the vapor is led straight into the condenser, as on this sheet. A fractional set-up adds a fractionating column on top of the distilling flask, and the vapor climbs through it first.

What is the still pot in a distillation apparatus?

Another name for the distilling flask: the pot in which the mixture is heated. On the worksheet it is number 3, the round flask at the left.

Where does the thermometer go in a distillation apparatus?

On top of the still head, held by the thermometer adapter, and not in the boiling liquid. On the worksheet it is number 2 and its adapter number 8.

What is the vacuum adapter used for in distillation?

Its bend turns the liquid from the condenser down into the receiving flask. The small stub on its side is a connection that a vacuum pump can be fitted to.

What type of condenser is used in simple distillation?

On this sheet, a Liebig condenser: a straight glass tube inside a water jacket. The vapor enters at its upper end and the liquid drips out of the lower end. Liebig condenser and water condenser are both right on line 1.

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