Good Morning 04/21/23• Starter: What should you never do with

dangerous chemicals around?

• Pass around the gradesheets.

• Goal for today: learn about safety in the lab.

• Go through a PowerPoint on Safety to prepare us for demos and labs.

SAFETY IN THE SCIENCE LABORATORY

• Read instructions before starting experiments;

• Follow all directions carefully

• Don’t touch anything until instructed to do so;

• Perform only those experiments authorized by the instructor;

• Do not eat food,drink beverages or chew gum in the lab;

• Absolutely no horseplay in the lab!

• Keep work areas clean and tidy;

• Keep aisles clear;

• Know the locations and operating procedures of all safety equipment

• Safety shower

• Eyewash station

• Fire blanket

• Fire extinguisher

• Dispose of all chemical waste properly, according to instructions;

• Clean equipment and work area after use;

• Return all materials to proper location

• Keep hands away from face, eyes and mouth while using chemicals;

• Wash hands thoroughly before leaving lab;

• Goggles must be worn at all times during a lab;

• Wrong!

• Correct!

• Dress properly during a lab;– Tie long hair back

– No dangling jewelry– No loose, baggy clothing

• No sandals (shoes should completely cover top of foot)

• Wear lab aprons• No contact lenses

• Report any accident or injury to the instructor immediately;

• If a chemical splashes on your skin, immediately flush with running water and notify instructor

• When checking a chemical for odors, gently waft vapors towards nose;

NO YES

• Double check labels on chemical bottles

• Take only as much chemical as you need;

• Never return unused chemicals to their original containers;

• When diluting acids always add the acid to the water;– “Do as you oughta – add acid to

water”

• Never handle broken glass with your bare hands;– Use a dust pan and brush

– Place broken glass in glass disposal container

• Never use chipped, cracked or dirty glassware;

• Never leave a lit burner unattended;• When heating a substance in a test

tube, never point the mouth of the test tube at yourself or others;

• Never look down into a container that is being heated;

• Be careful – hot glass doesn’t look hot!

• Never pipet by mouth!

• Use a pump or bulb

Now The Safety Quiz and Safety Agreement

If we have time, we will watch some videos on safety.

Videos

• Chemistry Lab intro

• Behavior in the lab

• Emergency Equipment

• Glass tubing

• Thermometers