Laboratory Apparatus

Uses in the Field of Chemistry

1. Separatory Funnel

Used for separating immiscible liquids with different densities. The denser liquid drips while the lighter stays on top.

2. Drying Tube

Connected to a ground vessel that protects the specimen from moisture. Separates the released gas and the moisture in the air.

3. Funnel (Glass)

Channels liquid to containers without spilling. Used for transferring liquids and powdered solids.

4. Thistle Tube

Used to add liquid to mixtures. The long tube is used to provide insertions through stoppers.

5. Test tube Holder

For Holding Test tubes. (what else…)

6. Test tube brush

For cleaning test tubes and apparatus with similar shapes.

7. Test tube

Holds small amounts of substances for observing, heating and sampling.

8. Test tube rack

Holds test tubes that are set aside for observing and for long term sitting.

9. Watch Glass

Used for covering beakers and containers with wide openings. Also used for evaporation and holding small amounts of substances for smapling.

10. Burette / Buret

Used for dispensing reagents (acids or bases). It has mL measures to control the liquid that is being dispensed because measurements need to be exact.

11. Stirring Rod

Used for stirring substances (liquids or powdered solids).

12. Beaker

Used for heating, mixing and holding substances. Has a spout for ease of pouring liquids. Measures may not be exact.

13. Thermometer

Measuring temperatures.

14. Distilling Flask

For distilling purposes where the vapor is guided through its tube.

15. Condenser

Used for cooling hot liquids and vapor. Vapor then would become liquid and will not mix in the air.

16. Florence Flask

Used for holding liquids and for ease of swirling. The round bottom provides uniform heating of the liquid.

17. Reagent Bottles

Used for storing chemicals. Dark glassed ones prevent sunlight that may cause chemical reactions.

18. Iron stand

Used for supporting clamps and iron rings in heating activities and other work that needs leverage.

19. Iron Clamp

Used to hold slender glass wares for heating activities or anything that needs leverage.

20. Iron Ring

Used for heating activities either through direct heat or a wire gauze placed on it.

21. Adaptor

Glasses or plastic that are used to connect flasks, containers, funnels and condensers.

22. Erlenmeyer Flask

Used for containing and heating liquids. Narrowed opening for ease of swirling and prevents spilling and excessive vapor loss.

23. Graduated Cylinder

Used for measuring liquids with better accuracy.

24. Wire Gauze

Used with a tripod or iron ring for heating either to spread the heat or prevent the direct heat in the heated substance or vessel

25. Tripod

Used to support the heating vessel. It is more fixed compared with the iron ring and iron stand. A wire gauze could also be used with it.

26. Bunsen Burner

For heating and sterilization. The flame source is either natural gas (methane) or LPG. Flame could be adjusted from blue or orange flame.

27. Spatula

For portioning liquid or powdered substances.

28. Mortar and Pestle

Used for grinding solid substances making them in their fine powdered forms. Mortar is the vessel and the Pestle is the club for grinding.

29. Evaporating Dish

Used for heating substances to remove excess solvents leaving the solute or dissolved precipitate.

30. Crucible and Cover

Used for heating substances that requires high amounts of heat. Comes in various sizes.

31. Crucible tongs

Used for holding crucible specially when it is hot.

32. Clay triangle

Same purpose as the wire gauze but it is direct from the heat source. It holds the crucible, evaporating dish and beaker in heating activities.

33. Forceps

Used for grasping, holding and transferring solid objects that could not be held by bare hands.

34. Pneumatic Trough

Used for collecting gases in a vessel by cooling the vapor. It is filled with cool liquid then gases are condensed.