Unformatted text preview: when the lab begins. The safety lecture (specific to that
day's experiment) will be the first item of business each day. If you are not present to get this
important information, you will not be allowed to do the experiment.
Absolutely no food or beverages will be permitted inside the lab. They can absorb
chemicals from the air (and concentrate them), or can pick them up from the bench, causing
ingestion of these chemicals. Everything possible will be done to be sure the laboratory air is
safe for working in without the use of special respiratory equipment. Please don't complicate the
issue by eating these chemicals as well!
WASH YOUR HANDS! Wash your hands frequently during lab, and definitely wash
you hands twice at the end of the lab, once in the lab itself, and again outside of lab (as in a
public rest room), ESPECIALLY before eating. Once you get home, you should wash your face
as well. Yo u don't want to drag too many chemicals around with you on your skin.
Do NOT apply makeup (including Chapstick and other lip balms) in the lab. In fact, you
may want to seriously consider not wearing makeup to the lab at all. Makeup can also pick up
and concentrate fumes from the air, and hold them against the skin causing irritation. Perfumes,
colognes or other fragrances may also interfere with the olfactory senses when an experiment
calls for "smelling" something.
Should an injury occur, regardless of how minor it is, report it IMMEDIATELY to the
lab supervisor. The smallest puncture wound allows for chemicals to enter the blood stream
directly. By notifying your supervisor, even if no action is taken, the incident will be reported to
the student health center. In the event that this wound should become infected later, having this
information on file may prove to be of extreme importance for prompt treatment.
Never pick up broken glassware with your bare hands, regardless of the size of the
pieces. Typically, puncture wounds occur with the largest pieces in such a situation, because
they look to be the most harmless. A brush and dust pan is provided for broken glassware.
Please place all broken glassware in the appropriate broken glassware container, and never put
caps, paper or other waste in this same container. Very small bits of broken glassware (as in the
bottom of a drawer) can be picked up with a damp paper towel.
(9) NEVER put broken glass in a regular garbage can. A container is provided that is especially
designed for broken glassware.
(10) Always read the labels to reagents (chemicals used in an experiment) twice ! Many
chemicals look identical on first glance, and may differ only slightly in their spelling or
Dakota State University Page 9 of 232 Safety Guidelines General Chemistry I and II Lab Manual concentration. Sodium sulfate may look similar to sodium sulfite, but they are most certainly
different and confusing them in the lab may result in dire consequences. Therefore, read the
label as you grab the bottle, and holding it in your hand, look carefully at the label a second time
and verify that it...
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