Lab Safety

Mr. D. Mader

Kaukauna High School

‘To ask me to overlook even a simple safety violation would be asking me to lower my attitude

toward the value of your life.’

Clothing• Safety Equipment used:

–Goggles–Worn any time chemicals, heat or glassware is used

–Aprons

–Gloves

– Contacts- Advise Instructor & follow their directions

What should NOT be worn in the lab

– Loose Hair (tie it back)– Baggy clothing (remove

or tie it)– Jewelry (can react w/

chemicals)– Shorts/Skirts/Skorts

• Legs need to be covered

– Open toed-shoes/sandals (closed-toe shoes best)

Behavior

•Horseplay•Watch for your lab partner

•Have your lab materials with you

•Listen to and follow the instructor’s directions

•Read the lab before you conduct it

•If you do not understand something: ASK

FOOD & DRINK

• NOT ALLOWED

• Do NOT get it out of your back pack

• Do NOT try to sneak a bite/drink during class

• It will be disposed of by me if you get it out

Labeling & MSDS

• Labels need to be placed on containers

• Material

• Safety

• Data

• Sheet– These provide known

hazards, safety equipment to be worn, 1st aid info, & disposal methods for a given chemical

Fire

Health Reactivity

Protective equip.

Mixing Solutions

• ALWAYS add acids & bases TO water

• Only mix chemicals that you have approval to mix

• Know the hazards of the chemicals you are using. Consider all chemicals to be dangerous and treat accordingly.

• DO NOT return unused chemicals in their original containers

Chemical spills

• Tell your instructor immediately• Let your instructor know what has been spilled• Follow directions of the instructor as to how to

clean up the material(s)• Neutralize Acids & Bases as instructed

– E.g. On your skin, rinse with water, otherwise

– Acids with WEAK bases

– Bases with WEAK acids

Eye wash

• If material enters your eyes:

1. Turn eye wash on2. Place your face in

the water stream3. Using fingers, keep

your eyes open4. If chemicals in eyes,

keep washing eyes for 15 minutes or otherwise instructed

Emergency Shower

• If a large chemical spill occurs on a person:

1. Go to the drench shower

2. Pull down lever

3. Remove clothing that has chemical(s) on it

Fire Hazards

• If a fire starts, tell your Instructor Immediately!!

• Keep alcohol & other flammable compounds away from open flame

• Only turn on the gas when it is being used to produce flame with a bunsen burner or otherwise instructed by your Teacher

• Know where the fire extinguishers & fire blankets are located in the room

Bunsen Burner

1. Watch demo on how to use

Gas flow dial

Glassware

• Inspect before using

• Do NOT use chipped or cracked equipment

• Use tongs to pick it up when it has been heated

• POINT open end AWAY from people when heating

• DO NOT

• Remember, Hot and Cold glassware looks the same

Which is hot & which is cold?

Steps for placing glass tubing in a stopper

1. Lubricate the tubing with water

2. Use a towel or gloves for protection

3. Twist tubing and stopper carefully

Fire Extinguisher & Blanket

• To use an extinguisher, remember PASS:

Pull the pin

Aim at the base of the fire

Squeeze the trigger

Sweep back & forth

• Fire blankets should be placed over a person/object that has caught fire

Only use on “trash-can” sized fires

Cleaning up the lab

• Everyone is responsible for cleaning.

• If needed, clean lab area BEFORE you use it

• Work areas should be kept clean and safe

• After lab, wash your hands

Remember:Be Safe and Learn,

It could be your life that is saved

As the wise teacher Yoda says:‘Try not! Do. Or do not.

There is no try.’

One last thing, our class Mantra will be…

K eep

I t

S imple,

S eriously!