C HEMISTRY L AB S AFETY R ULES. S AFETY R ULES Wear appropriate protective clothing.

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Presentation transcript:

C HEMISTRY L AB S AFETY R ULES

S AFETY R ULES Wear appropriate protective clothing

Your clothing should cover your legs to the knees – shorts are not appropriate for the laboratory Lab aprons can be used to protect good clothing Loose clothing should not be worn because it may dip into chemicals or fall into a flame and catch fire

W EAR SHOES THAT COVER YOUR FEET. Sandals and open-toed shoes do not protect your feet from broken glass that is frequently found in the lab Also, leather shoes protect your feet from chemical spills – canvas shoes do not.

T IE B ACK L OOSE H AIR Dangling hair can fall into the Bunsen burner and catch fire or can fall into a chemical solution

D O NOT WEAR CONTACT LENSES Vapors in the laboratory ( e.g. HCl) dissolve in the liquids covering the eye and concentrate behind the lenses.

Know the locations of the nearest available telephones and emergency phone numbers to use to call for help in case of an emergency. Emergency: 112 Fire Station: 110 Police: 155 Police: 155

Know the locations and operating instructions for the fire extinguishers, fire blankets, fire alarms, fire hoses, first aid kit, eye washes and showers. at least 15 minutes. Wash eyes for at least 15 minutes.

D O NOT APPLY COSMETICS, EAT, OR DRINK IN THE LAB. These activities are ways by which you can accidentally ingest harmful chemicals

D O NOT TASTE ANY CHEMICAL !

Follow instructions carefully. Know the safety hazards of each experiment before starting. Do not perform unauthorized experiments. Only work in the laboratory when supervised by an instructor.

Keep burners in the middle of the lab table, not on the edge. When heating liquids in test tubes, never point the tube toward yourself or anyone else. Use boiling chips when boiling liquids in a flask or beaker to prevent bumping.

H EAT TEST TUBES AT AN ANGLE, DIRECTING THE OPENING OPPOSITELY TO YOU AND OTHER PEOPLE IN THE LABORATORY.

P OUR FROM LARGE CONTAINERS TO SMALLER ONES.

A LWAYS ADD ACID TO WATER acid water “Do not spit into acid!” – a good phrase to remember this rule.

H OLD YOUR HAND OVER THE LABEL WHILE POURING.

W ORK WITH VOLATILE CHEMICALS UNDER A FUME HOOD.

H ANDLE HOT GLASSWARE WITH GLOVES OR BEAKER TONGS.

First light the match THEN Turn on the gas!

D O NOT SMELL ANY CHEMICALS DIRECTLY ! If absoluteley necessary to smell, use your hand to fan the vapor to your nose.

D O NOT PIPET SOLUTIONS BY MOUTH ! Use a rubber suction bulb or other device to fill a pipet.

W ASH YOUR HANDS WITH SOAP AND WATER BEFORE LEAVING. This rule applies even if you have been wearing gloves!

Report all accidents, no matter how minor, to the instructor. If you break something made of glass, be sure to use dustpan and hand broom to sweep it up and dispose of it in the glass waste receptacle.

Never return chemicals to bottles of their origin. If you have excess, give it to another student or throw it away. Check labels on containers twice to make sure you use the right chemical and of the correct concentration. Dispose of chemicals in proper receptacle.

Do not stick objects into bottle except spatula or dropper provided for that bottle. Do not set the spatula or dropper down on the counter (you may contaminate it). Keep each spatula or dropper with the proper bottle.

D ON ’ T WORK ALONE IN THE LAB In case of a problem, you may need another person to prevent injury or even save your life!

Before leaving the lab: Keep table tops clean. Return all equipment to its original location before leaving the lab. Clean all spills immediately. Wash your hands after every experiment.