Laboratory Apparatus & their Function Beakers are useful as a reaction container or to hold liquid or solid samples. They are also used to catch liquids from titrations and filtrates from filtering operations. Bunsen burners are sources of heat. Erlenmeyer flasks are useful to contain reactions or to hold liquid samples. They are also useful to catch filtrates. Glass funnels are for funneling liquids from one container to another or for filtering when equipped with filter paper. Graduated cylinders are for measurement of an amount of liquid. The volume of liquid can be estimated to the nearest 0.1 mL with practice. Pipets are used to dispense small quantities of liquids. Ring stand with rings or clamps are for holding pieces of glassware in place. Test tubes are for holding small samples or for containing small-scale reactions. Test tube holders are for holding test tubes when tubes should not be touched Tongs are similar in function to forceps but are useful for larger items. Wash bottles are used for dispensing small quantities of distilled water. Watch glasses are for holding small samples or for covering beakers or evaporating dishes. Wire gauze on a ring supports beakers to be heated by Bunsen burners Test Tube Holder/Rack A test tube holder is used in a laboratory and it is used to hold/support test tubes containing chemicals waiting for further operations. Although it is called a test tube holder, it is also used to hold/ support pipettes, etc. Test tube brush - It is a brush that is long and narrow to clean the inside of glassware, . Evaporating Dish - The evaporating dish is used to heat and evaporate liquids. Crucible & Cover - A crucible is a cup-shaped piece of laboratory equipment used to contain chemical compounds when heated to extremely high temperatures. Mortar & pestle - n the laboratory a mortar and pestle is predominantly used to crush and blend substances together. Florence Flask- It is used as a container to hold liquids. Stirring Rod - Use a glass stirring rod to stir a liquid in a flask or beaker. 2. Spread liquids, gels or other materials across a surface such as a petri dish with a glass rod. The rod prevents Glass Tubing - Glass tubing is used to connect other pieces of lab equipment. It can be cut, bent and stretched for a variety of uses. Here is how to work glass tubing safely for a chemistry lab or other scientific laboratory. Bunsen Burner - which is used for heating, sterilization, and combustion. Platform Balance - A platform balance is used to determine the mass (or weight) of an object. Thermometer - the main function of the thermometer is to measure temperature
Posted on: Wed, 03 Jul 2013 03:51:48 +0000
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