Main Menu CHEM 2000/2002

Experiments for the Elementary School Classroom

You are required to read the following checklist and check each item only when you thoroughly understand it. Ask your instructor to clarify any points you do not understand.

  1. Eye protection must be worn at all times. Safety goggles are required. It is not advisable to wear contact lenses unless they are absolutely necessary for eyesight correction.
  2. Gloves should be used when handling toxic or corrosive chemicals.
  3. Know the location and how to use the fire extinguisher, fire blanket, eyewash fountain, and safety shower for your lab.
  4. Smoking, eating, drinking, or applying cosmetics are not allowed in the lab; wash hands frequently when working with chemical substances and at the end of each lab period.
  5. Bare feet are not allowed in the lab. Long hair should be tied back. Special care should be taken to keep hair and beards away from flames, especially when lighting burners and taking melting points.
  6. Never use an open flame in the vicinity of flammable substances.
  7. Always add boiling chips before heating a liquid.
  8. Never heat a system having no vent to the air.
  9. Keep your face away from the opening of the vessel when mixing reagents, when applying heat to a reaction mixture, or when testing for an odor.
  10. Never point a vessel toward your face or toward another person, especially when it is being heated.
  11. Evaporate solvents in the fume hood.
  12. Always use a pipette bulb when pipetting.
  13. Clamp all apparatus firmly, especially when heating, cooling, or performing vacuum filtration.
  14. When inserting glass tubing into stoppers, lubricate the glass with glycerin and wrap the tubing in a towel to protect your hands if it should break.
  15. Flammable chemicals are not to be stored in your locker nor are unlabeled containers of chemicals stored. Labels should include a description of the contents (compound name) and a page reference to your lab notebook.
  16. All reagents and solvents are to be returned to their proper places immediately when no longer in use. Unused material should be placed into a proper disposal container.
  17. At the end of each lab period, clear your countertop and wipe it with a damp sponge. Clean up all spills promptly. Mercury spills (even a broken thermometer) or major spills of acids or bases are to be reported immediately to the instructor or to the Stockroom.
  18. Immediately wash off all chemicals spilled on the skin with large amounts of water.
  19. Find out the hazards of each experiment, either by carefully reading the lab book or handout for the experiment, or by consulting your instructor, before you begin work.
  20. The campus emergency phone number is 9911. This number may be used to report fires, summon an ambulance or the police.
  21. Students should never be in the laboratory at unscheduled times without written permission. At least two responsible persons must be in the laboratory when one is doing an experiment. An instructor must be at least within hearing distance of the person doing the experiment.

Hazard warning:

CAUTION --- the solids, liquids and gaseous substances, and combinations thereof, used in experiments are potentially hazardous in one or more of the following ways:

they may be irritants to, or have caustic action on, the skin, mucous membranes, lungs, and eyes
they may be systemic poisons
they may be flammable or explosive

Origin of hazards: Unexpected and possibly dangerous situations can result from one or more of the following:

incorrect transfer and handling procedures.
incorrect reaction temperatures
using incorrect amounts of chemicals
incorrect order of addition of two or more substances
incorrect rate of addition of two or more substances
using one or more incorrect substances
incorrect disposal of chemicals
incorrect dilution of concentrated acids (Reminder: acids are ALWAYS added to water slowly, carefully, with stirring).

(Cut at the dotted line and hand in the signed portion of this page to the Stockroom).
I have read and understood all of the foregoing safety precautions.



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This page was last modified August 29, 2000