LABORATORY APPARATUS

AND SAFETY MEASURES

JULIE SUNGA LAZARTE

What is a laboratory apparatus ?

Equipment for scientific research and experiments.

Examples of Laboratory aApparatus and its uses

Beakers are useful as a reaction container or to hold liquid orSolid samples. They are also used to catch liquids from titrationsand filtrates from filtering operations.

Bunsen Burners are sources of heat.

Burets are for addition of a precise volume of liquid. The volumeof liquid added can be determined to the nearest 0.01 mL withpractice.

Clay Triangles are placed on a ring attached to a ring stand as asupport for a funnel, crucible, or evaporating dish.

Droppers are for addition of liquids drop by drop

Glass Funnels are for funneling liquids from one containerto another or for filtering when equipped with filter paper.

Erlenmeyer Flasks are useful to contain reactions or to hold liquid samples. They are also useful to catch filtrates.

GraduatedCylinders are for measurement of an amount ofliquid. The volume of liquid can be estimated to the nearest0.1 mL with practice.

Hot Plates can also be used as sources of heat when anopen flame is not desirable.

Pipets are used to dispense small quantities of liquids.

Ring stand with Rings are for holding pieces ofglassware in place.

Test Tubes are for holding small samples or for containing 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 forlarger items.

Volumetric Flasks are used to measure precise volumesof liquid or to make precise dilutions.

Wash bottles are used for dispensing smallquantities ofdistilled water.

Watch glasses are for holding small samples or forcovering beakers or evaporating dishes.

Wire Gauze on a ring supports beakers to be heated byBunsen burners

Microscope is an optical instrument that uses a lens or a combination of lenses to produce magnified images of small objects, especially of objects too small to be seen by the unaided eye

LABORATORY EQUIPMENT

Balances are used to determine the mass of a reagent or object.

Spectrophotometers are used to measure the absorbance or transmittance of a liquid sample.

Fume Hoods are used to ventilate noxious or harmful gases.

Safety Measures Inside the Laboratory

Keep bags away from burners Never eat, drink, or smoke while working in

the laboratory. Tie back long hair Read labels carefully. Disposal - Students are responsible for the

proper disposal of used material if any in appropriate containers.

Turn off gas when not in use Wear gloves when using any hazardous or

toxic agent. Wear safety glasses/goggles Store chemicals on shelves with labels Clean up your work area before leaving.

O Do not engage in practical jokes or boisterous conduct in the laboratory.

O Never run in the laboratory.

O The use of personal audio or video equipment is prohibited in the laboratory. O The performance of unauthorized experiments is strictly forbidden. O Never work in the laboratory without the supervision of an instructor. O Always perform the experiments or work precisely as directed by your instructor.

O Immediately report any spills, accidents, or injuries to your instructor. O Never leave experiments while in progress.

O Make sure no flammable solvents are in the surrounding area when lighting a flame.

O Do not leave lit Bunsen burners unattended.

O Turn off all heating apparatus, gas valves, and water faucets when not in use.

REFERENCES:http://www.carolina.com/teacher-resources/Document/lab-safety-instructions/tr11076.tr

https://prezi.com/wf0szcqfn-zw/10-safety-precautionary-measures-inside-the-laboratory/

http://www.answers.com/Q/What_are_the_uses_of_microscopes

http://chemlab.truman.edu/CHEM100Labs/Common%20apparatus%20and%20procedures.pdf

THANK YOU