Before Lab Your instructor is a trained professional who is

very familiar with the procedures performed in each experiment. If you have questions or require clarification even after watching the video, do not hesitate to ask.

Before Lab Do not perform any unauthorized experiments for

any reason.

Fume Hoods All wet labs will be performed in the fume

hoods on the sides of the classrooms. Fume hood shields need to be down and

lights off when not in use.

Fume Hoods When coming up to a fume hood, raise the

fume hood shield only enough for your hands and arms to fit inside.

Your head is never allowed in the fume hood. You may only raise your fume hood upon instructor’s approval or instruction.

Wait until the video stops to continue

Fume Hoods Do not take any chemicals outside of the

fume hood unless you are weighing them in the balance room or smelling them as instructed.

Notice that smelling chemicals is done by wafting, or bringing the smell towards you. It is dangerous to smell chemicals directly.

We will be working with numerous chemicals of various types. All need to be considered dangerous to you.

Fume Hoods Keep the work area neat and organized. If a chemical spill occurs in the fume hood,

inform the instructor.

Fume Hoods Do not use the cold water in the fume

hoods for any reason. Use the sinks in the back of the room, and not the sinks at the benches.

Fume Hoods If someone must leave the hood to do

something, the other lab partner must remain at the hood while an experiment is performed. Never leave an experiment unattended.

Fume Hoods The metal part of the hood is open. Be careful

to not allow anything to go through. Test tubes will fall and break.

Fume Hoods At the end of the day, you are required to

clean your hood station with a sponge. Use soap if necessary.

Fume Hoods Make sure the hot plate in the hood is also

clean. If it is cool, clean the hot plate with water.

Leave the hot plate in the hood at all times and keep the cord in the hood.

Fume Hoods Make sure the cord is not underneath the hot

plate – it will melt the cord and start a fire.

NO

Cabinets & Glassware Cabinets contain most of the glassware and

instruments you will be using throughout the semester.

Cabinets & Glassware Glassware from the cabinet is marked as to the

name and size of the glassware. You will learn what each of the names are and what they are used for throughout the semester.

Cabinets & Glassware However, the yellow container never leaves

the cabinet.

Cabinets & Glassware Put all glassware on the marked spot when

clean and done. Items that did not come from the cabinets do not go into the cabinets.

Cabinets & Glassware All cleaning materials, such as soap and

water, are located in the back of the room.

YES

Cabinets & Glassware Do not use the sinks at the desks.

NO

Cabinets & Glassware Dry all glassware as much as possible using

the white, cotton towels.

Cabinets & Glassware Glass tubing should be carried in a vertical

position to minimize the likelihood of breakage and to avoid stabbing anyone.

Cabinets & Glassware Do not store chemicals in the cabinets. All

chemicals must be properly disposed of at the end of the lab period in the proper waste container provided.

Do not dump anything down the sink unless instructed to do so.

Cabinets & Glassware Especially check test tubes for liquids. It is

easy to miss liquids in the test tubes when in the test tube racks.

Cabinets & Glassware Do not leave the cabinet doors open or even

slightly open. Close them with your hands, not feet.

Cabinets & Glassware Do not take off the yellow plastic piece on the

graduated cylinders. It is used to prevent the graduated cylinder from breaking if it tips over. Keep the yellow piece on the top of the cylinder.

Cabinets & Glassware If you break any glass, tell the instructor

immediately! Do not touch any broken glassware.

Cabinets & Glassware Clean up the broken glass using the dustpan

and brush, and put all glass pieces in the broken glass container in the back.

Cabinets & Glassware Do not put anything other than glass in the

container, even if it is a paper towel used to pick up glass.

Cabinets & Glassware Make sure that the aisles near the fume

hoods are clear to prevent any fire hazards.

Cabinets & Glassware If you happen to run out of deionized water…

Cabinets & Glassware use the filling station in the back of the room.

Please use the one with the handle up.

Use this one!

Chemicals All chemicals and

equipment will be on the cart provided at the beginning of each experiment.

For fume hoods with 2 stations, only 1 basket with chemicals but 2 sets of given equipment is to be taken.

Chemicals Before opening a chemical bottle, read and

double check labels on bottles before removing any chemical. If in doubt, ask your instructor. Take only as much as you need.

Chemicals Be extra careful not to switch lids on bottles.

This is very important. You can cross-contaminate chemicals and then the whole bottle and the chemical inside are now useless.

If you remove any chemical from a bottle, do not put it back in the bottle. It is now waste.

If you run out of any chemical needed for the experiment, talk to the instructor.

Wait until the video stops to continue

Chemicals When you are done for the day, wash your

hands, no exceptions. You don’t want to eat the chemicals you’ve been working with that day.

For the future… Remember, watch the videos before coming to

lab. The safety rules and techniques needing to be known for each experiment are in each video. Record notes in your lab textbook.

Make sure you complete any homework assigned for the labs before you come to the next lab.