|
 |
 |
| Equipment: | ||||
|---|---|---|---|---|
| Experimental Setups: |
Page 1 2 3 Next>>
Click on a name below to read a description of the equipment and what it is used for.
Brushes | Bunsen Burner | Crucible | Crucible Tongs | Evaporating Dish | Forceps
Brushes use coarse bristles to scrub and clean glassware and other equipment. They come in many different sizes, depending on the item being cleaned (small ones for test tubes, to large ones for large beakers and flasks). 
A Bunsen burner consists of a hollow metal barrel that has one or more openings at its base to allow the entry of air. Gas is piped in at the base, mixes with the air, and at the top of the barrel creates a flame of varying intensity (depending upon the ratio of air-gas). Bunsen burners are used for heating chemicals and equipment. The Bunsen burner was created by and named after the German scientist Robert Bunsen, who made many discoveries in the field of organic chemistry and spectroscopy.
top
Crucibles and their lids are made of a ceramic that can withstand high temperatures.
The crucible is used to heat chemicals (usually solids) to high temperatures. This may be necessary to dry a solid completely, or to initiate a reaction outside of solution. Crucibles are supported above a Bunsen burner by a clay triangle.
Crucible tongs are made of stainless steel or brass and are used for handling crucibles, evaporating dishes, and other hot objects.
Evaporating dishes are made of ceramic and are used to evaporate the liquid away from a small volume of solution. This is done to collect the solute that is dissolved in a solution. Care must be taken when recovering a solute in this manner; if heated too strongly, the solute may actually "pop" out of the dish, resulting in erroneous results.
Forceps (more commonly referred to as "tweezers") are made of stainless steel and are used to handle small pieces of solid material.Back to: |
|