5/24/2010
LABORATORY SAFETY RULES
Laboratory Safety
Always be safety conscious. Move about
the laboratory in a safe manner.
Report all accidents. No accident is too
small to report.
Know the location of all of the safety
equipment in the laboratory
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Laboratory Safety
Plan ahead. Become familiar with all of the
health and safety hazards of equipment
and chemicals in use. If you are not sure,
ask.
MSDS – more later
Wear safety goggles at all times
Acid Damage
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Base Damage
Broken Glass
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Laboratory Safety
Wear a lab apron when handling
corrosive chemicals
Laboratory Safety
Use Bunsen burners only at the direction
of the teacher, and do not leave
unattended
Use a hot plate to heat flammable liquids
Confine long hair – Watch for open flames
Only do experiments assigned
Do not eat or drink while in lab
Wear closed toed shoes
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Laboratory Safety
Do not return unused chemicals to the
stock container
Ask teacher about proper disposal techniques
Clean all glassware and the lab area
before leaving
Wash your hands before leaving lab
Laboratory Safety
Failure to follow rules will not be tolerated
and will result in the immediate removal
from lab
DO NOT play around in Lab
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Glassware
Broken Glass – Clean up immediately with
a brush and pan
Do not put broken glass in the regular trash
can
Before inserting glass tubing or
thermometers into corks or stoppers apply
lubricating grease to glassware
Avoiding Burns
Keep lab table free of books and papers
Point test tubes away from ALL people
while heating
Hot glass looks just like cold glass. Use
care when touching glass objects that
have been heated
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Handling Chemicals
To smell the contents of a container use a
“wafting” technique as demonstrated by
your teacher
Electrical Precautions
Before connecting equipment to a power source,
examine all wiring for electrical defects and
improper installation.
Make sure that all equipment is properly
grounded and that you are NOT.
Make sure that your hands are dry; that the
work area is dry.
Be certain that the proper voltage is available.
Follow directions. If you are unsure of any
procedure, ask your teacher.
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Acid Safety
Always check the reagent bottle which
contained the acid, or ask your teacher
about the dangers of the acid.
Always have on safety goggles whenever
acids are present. It is also a good idea to
wear an apron too.
When mixing acid and water, always pour
the acid into the water. ACID TO WATER
never the reverse
Acid Safety
Never disturb an unmarked substance
because it may be an acid.
If an acid comes in contact with your skin
wash it with soap, because the soap will
neutralize the acid.
Always clean up any spilled acid as soon
as possible.
Never allow the acid to come into contact
with your skin unless your teacher says
has told you that it is okay.
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Fire Safety
Keep all combustible materials away from
open flames unless specifically instructed
to place them in the flame.
Keep head, hair, and all loose clothing
away from an open flame.
Never leave unattended anything that is
being heated or reacting.
Always turn off burner when not in use.
Basic Chemistry Lab
Equipment
Pipette
For
exact
volume
measurement
s of liquids.
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Basic Chemistry Lab
Equipment
Pipette filler
There are several
styles of fillers used to
draw liquids into a
pipette.
Never draw a liquid
into a pipette with
your mouth.
Basic Chemistry
Lab Equipment
Filter flask
Used in
conjunction with
a vacuum
connection to a
water faucet to
speed up
filtration.
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Basic Chemistry
Lab Equipment
Erlenmeyer
flask
Used to
contain
reaction
solutions.
Basic Chemistry
Lab Equipment
Florence
flask
Used to boil
liquids.
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Basic Chemistry
Lab Equipment
Volumetric
flask
Used to make
solutions
Basic Chemistry
Lab Equipment
Beaker
Used
to
contain
chemical
reactions
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Basic Chemistry Lab
Equipment
Graduated
cylinder
Used to make
accurate
measurements of
liquid volumes.
Basic Chemistry Lab
Equipment
Evaporating
dish
Used to recover
dissolved solids
by evaporation.
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Basic Chemistry Lab
Equipment
Watch
glass
Similar to an
evaporating
dish. Can be
used to cover
beakers.
Basic Chemistry Lab
Equipment
Support ring
Used to support
glassware above
the lab table.
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Basic Chemistry Lab
Equipment
Utility clamp
Used to hold
large test type or
Florence flask
above the lab
table.
Basic Chemistry
Lab Equipment
Crucible & Cover
Used as a
container when
something
requires strong
heating.
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Basic Chemistry Lab
Equipment
Crucible
tongs
For picking up
crucibles and
crucible covers
ONLY
Basic Chemistry Lab
Equipment
Wire gauze
Will support
glassware when
placed across a
support ring.
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Basic Chemistry Lab
Equipment
Striker
Used to light a
lab burner. Not a
toy noisemaker
during lab.
Basic Chemistry Lab
Equipment
Mortar
and
Pestle
To grind solids
into powders.
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Basic Chemistry Lab
Equipment
Test
tube
holder
To hold test
tubes while
heating.
Basic Chemistry Lab
Equipment
Filter funnel
When lined with
filter paper, used
to filter suspended
solids from a
liquid.
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Basic Chemistry Lab
Equipment
Wash bottle
For washing
solids out of a
container when
filtering.
Basic Chemistry Lab
Equipment
Chemical spoon
/ Spatula
To transfer
solids from their
original bottle to
a scale for
weighing.
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Basic Chemistry Lab
Equipment
Hose
clamps
Used to close
hoses by
pinching them
together.
Basic Chemistry Lab
Equipment
This
is not a complete listing of
all the equipment in our lab.
Additional equipment is
available, if needed for the
exercise.
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NFPA 704 Hazard Identification System
National Fire Protection Agency
RED-- Flammability
RED
BLUE-- Health Hazard
BLUE
YELLOW-- Reactivity
YELLOW
WHITE- Special
WHITEPrecautions
Protective Gear Required
NFPA 704 Hazard Identification System
National Fire Protection Agency
Hazard Rating
4 Severe
3 Serious
2 Dangerous
1 Minor
0
Slight
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Flammability
Hazard Rating
4
3
2
1
0
=
=
=
=
=
Severe – flash point <730C
Serious – flash point < 1000C
Dangerous – flash point b/t 100100-200
Minor – flash point >200oC
Slight – will not burn
Health Hazard
Carcinogens
Mutagens
Cancer causing
Cause mutations
Can affect your future children
Teratogens
Affect developing fetuses
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Specific Hazards
Corrosive materials
Acids
Bases
Oxidizers
Unstable compounds
Reactivity
Explosive materials
Almost instantaneous release of large or small
amounts of pressure, gas, and heat when
subjected to sudden shock, pressure, or high
temperature
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MSDS
MSDS- Material Safety Data Sheets
MSDSSheets-- Gives
important information on chemicals such as:
Product identification
Hazardous components
Physical data
Fire and explosion Hazards
Health hazards
Fire and explosion data
Spill and disposal procedures
Protective equipment
Storage and handling procedures
Transportation data and additional information
MSDS
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Section 1
Source and Nomenclature
The name, address, and telephone number of
the manufacturer or supplier of the product.
The trade name and synonyms for a mixture
of chemicals, a basic structural material, or
for a process material
NFPA Hazard Rating
Section 1
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Section 2
Hazardous Ingredients
Chemical or widely recognized common name
of all hazardous ingredients
The approximate percentage by weight or
volume which each hazardous ingredient of
the mixture bears to the whole mixture.
Basis for toxicity for each hazardous material
such as an established standard in
appropriate units
Section 2
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Section 3
Physical Data
Boiling Point
Melting Point
Appearance
Odor
Etc.
Section 3
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Section 4
Fire and Explosion Hazard Data
Flammability and Reactivity Information
What to do in case of emergency
Section 4
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Section 5
Health Hazard Data
Toxic level for total compound or mixture
Effects of exposure, and emergency and firstfirstaid procedures
Section 5
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Section 6
Reactivity Data
Chemical stability
Section 6
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Section 7
Spill or Leak Procedures
Detailed procedures to be followed with
emphasis on precautions to be taken in
cleaning up and safe disposal
Section 7
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Section 8
Special Protection Information
Requirements for personal protective
equipment, such as respirators, eye
protection, protective clothing, and ventilation
Section 8
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Section 9
Special Precautions
Any other precautionary information
Section 9
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