Lab equipment and Lab equipment and Lab SafetyLab Safety

Think safety with every step you do in the lab!

Lab EquipmentLab Equipment• Glassware• Tongs• Scoopula• Test tube holders• Test tube racks• Pipettes• Watch glass, evaporating dish• Mortar and pestle• Measuring devices

Graduated cylinder

Bulb Flasks

Erlenmeyer Flask

Pipette

Mixing

Mixing

Mixing

Measuring fluids

Beakers ARE for mixing fluids—Not for measuring

Triple Beam Balance, is not affected by gravity

Bunsen Burner

Ring stand set up

Interest GrabberInterest Grabber

It is important to pay attention to warning labels when working with chemicals. Look at the safety symbols at the right.

Section 2.3

Section 2.3

Write a brief statement for each symbol explaining what actions you need to take to avoid a possible danger.

Safety SymbolsSafety Symbols

Interest GrabberInterest GrabberAnswersAnswers

Section 2.3

Interest GrabberInterest GrabberAnswersAnswers

A.No flames, sparks, or exposed sources of heat should be present during an experiment.

B. Waft fumes to you to avoid these from burning your lung tissue.

C.Avoid getting corrosive chemicals on skin or clothing, or in the eyes.

D.Tie back long hair and loose clothing, and put on safety goggles before using a burner.

Section 2.3

Wear Protective ClothingWear Protective Clothing

Lab coats or ApronsGoggles

Gloves as needed

Lab RulesLab Rules

• First: Read all Directions for an experiment and follow directions.

• Never perform unauthorized or unsupervised labs or handle equipment without permission.

• Ask questions before you do something

Lab Rules continuedLab Rules continued

• When you design your own lab, make sure your lab procedure has been approved by your teacher.

• NEVER EAT, DRINK or Bring FOOD or water into the laboratory area.

Lab Rules continuedLab Rules continued

• Do not chew gum during a lab!• REPORT ALL ACCIDENTS TO

TEACHER IMMEDIATELY• Report any fire to teacher and

know where the fire extinguisher and fire blanket are located

Dress Code RulesDress Code Rules

• Always wear goggles OVER EYES ( there will be a deduction in your Lab Participation grade if not worn.) 2nd warning you will sit out.

• Wear protective clothing if necessary

Dress Rules Cont.Dress Rules Cont.

• Tie back hair and loose clothing• Remove dangling jewelry that

could contact chemicals or cause hazards.

Handling GlasswareHandling Glassware

• Handle all glassware with care• Report all breakages, even chipped

glassware to teacher—DO NOT TOUCH BROKEN GLASS!!

• Make sure glassware is not near edges of the work table

Glassware Cont.Glassware Cont.• Never heat glassware that is not

fully dry or heat resistant (pyrex)• Do not touch any glassware that

has been on the hot plate with your unprotected hands.

• Use tongs or heat resistant gloves.• NEVER drink from Lab glassware

Heating and Fire SafetyHeating and Fire Safety

• Never reach over a flame or hot plate

• NEVER touch hot object with your bare hands

• Tie back long hair, loose clothing and put on safety goggles before using a burner.

Heating and Fire Safety Cont.Heating and Fire Safety Cont.

• Never heat chemicals without your teacher’s permission

• When heating a test tube point it away from people

• Heat the test tube at a 45◦ angle—Not straight up

• Never Heat a closed container

Electrical SafetyElectrical Safety

• Do not use electrical equipment near water or if your hands are wet

• Use only three prong sockets• Disconnect equipment not in use• Do Not Use damaged equipment or

frayed cords

Chemical SafetyChemical Safety

• Do not let corrosive or poisonous chemicals get on your skin or clothing or in your eyes

• Never test for an odor by sticking your nose directly into or over the odor—Waft THE ODER TO YOU!!

Chemical safety Cont.Chemical safety Cont.

• NEVER MIX CHEMCIALS TOGETHER FOR FUN!!

• Never touch, taste or smell a chemical that you do not know, for certain, that is not dangerous

Chemical safety Cont.Chemical safety Cont.• Avoid spilling chemicals—tell

teacher if you spill anything except water.

• When using strong acids or bases, ALWAYS pour these into the water not vice versa.

• DO NOT pour water into the acid/base

End of Experiment RulesEnd of Experiment Rules

• Follow your teacher’s directions as to disposal of chemicals.

• DO NOT POUR ANYTHING DOWN THE DRAIN without permission

End of Experiment RulesEnd of Experiment Rules

• Your work area must be left clean and ready for the next group

• When the area is clean and dry, you may get with your lab group and complete your lab report.

End of Experiment RulesEnd of Experiment Rules

• WASH YOUR HANDS AT THE END OF THE EXPERIMENT.

• Throw all paper towels in trash.• There is to be no trash in the

sinks or your group will loose points off the lab report.

End of Experiment RulesEnd of Experiment Rules

• WE WILL NOT DISMISS WITHOUT THE ALL LAB AREAS CLEAN AND ALL MATERIALS PUT AWAY!!