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The general safety instructions include the following three general categories:
- Clothing
- Conduct
- Chemicals and Equipment handling
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Approved
safety goggles. Long hair must be tied back when using open
flames. Contact lenses are not allowed. Even when worn under
safety goggles, various fumes may accumulate under the lens
and cause serious injuries or blindness.
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A
shirt that covers the stomach and lower back as well as the
upper arms. Long pants (An acceptable, but not reccommended,
alternative is to wear shorts, a skirt, or a lab coat such
that your knees are covered when you are sitting down.). Never
point a test tube or any vessel that you are heating at yourself
or your neighbor--it may erupt like a geyser.
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Shoes
that completely cover the foot. Clean up all broken glassware
immediately and dispose of the broken glass properly. Contact
the stockroom for clean-up of mercury spills.
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Eating, drinking,
and smoking are strictly prohibited in the laboratory.Coats,
backpacks, etc., should not be left on the lab benches and
stools. There is a hook rack along the back wall at either
end of the lab. There are coat racks just inside the each
entrance to the balance room at the back of the lab. Beware
that lab chemicals can destroy personal possessions.
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Always wash your hands before leaving lab.Notify the instructor
immediately in case of an accident.No unauthorized experiments
are to be performed. If you are curious about trying a procedure
not covered in the experimental procedure, consult with your
laboratory instructor.
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Never taste anything. Never directly smell the source of any
vapor or gas; instead by means of your cupped hand, waft a
small sample to your nose. Do not inhale these vapors but
take in only enough to detect an odor if one exists.
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Learn
where the safety and first-aid equipment is located. This
includes fire extinguishers, fire blankets, and eye-wash stations.
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Many common reagents,
for example, alcohols and acetone, are highly flammable.
Do not use them anywhere near open flames.
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Always pour acids
into water. If you pour water into acid, the heat of reaction
will cause the water to explode into steam, sometimes violently,
and the acid will splatter. Excess reagents are never to
be returned to stock bottles. If you take too much, properly
dispose of the excess.
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If chemicals
come into contact with your skin or eyes, flush immediately
with copious amounts of water and consult with your instructor.
Know what chemicals you are using. Carefully read the label
twice before taking anything from a bottle. Chemicals in
the lab are marked with NFPA hazardous materials diamond
labels. Learn how to interpret these labels.
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Beware of hot
glass--it looks exactly like cold glass. Never leave burners
unattended. Turn them off whenever you leave your workstation.
Be sure that the gas is shut off at the bench rack when
you leave the lab. Dispose of chemicals properly. Waste
containers will be provided and their use will be explained
by your TA. Unless you are explicitly told otherwise, assume
that only water may be put in the lab sinks.
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Consider
all chemicals to be hazardous unless you are instructed otherwise.
Material Safety Data Sheets (MSDS) are available in lab for
all chemicals in use. These will inform you of any hazards
and precautions of which you should be aware.
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