Transcript Lab Safety - Golden Valley High School

Lab Safety
Review
Chemistry
An instructor must be
present during the
performance
of all laboratory work.
Prepare for each laboratory
activity by reading all instructions
before coming to class.
• Follow all directions & make a
note of any modifications in the
procedure given by the instructor.
Always do labs in a
serious and courteous
manner.
Use only materials &
equipment authorized
by instructor.
Know proper Fire
& Earthquake-drill
procedures.
Emergency Equipment
Know location & how to operate
emergency shower, eyewash &
facewash fountain,
fireblanket,
fire extinguisher,
&
exits.
Equipment
• Use fire blanket to extinguish any
flame on a person.
• How does a fire blanket
extinguish a flame?
• Use fume hood when corrosive
or toxic fumes are produced
Clothing Guidelines
• Roll long sleeves above wrist.
• Bulky clothing or jewelry shouldn’t be
worn in the lab.
• Confine long hair during a labs.
• Shoes that cover toes must be worn in
the lab. No sandals! or
you may not participate and you will receive a zero on the lab.
Goggles
• Wear appropriate eye protection when
working in the lab at all times.
– goggles must be worn during
hazardous activities involving
caustic/corrosive chemicals,
heating of liquids, & other
activities that may injure the
eyes.
Consequence
• If your goggles removed while in lab
area for any reason:
1st time = Verbal warning
2nd time =You will not participate in the
next lab, therefore you will
receive a zero on that lab.
3rd time = You may not participate in labs again
Required Materials
• Leave all books, purses, & other
items at desk.
• Take only labsheet & pencil.
Accidents
• Report any accident to teacher
immediately, no matter how minor,
including any burn, scratch, cut, or
corrosive liquid on skin or clothing.
• Students with open skin wounds
on hands must wear gloves.
• Eating or drinking in the
laboratory or from laboratory
equipment is not permitted.
Deputy creating "Faces of
Meth" program
Results of Ingesting the Wrong Chemicals
http://www.co.multnomah.or.us/sheriff/faces_of_meth.htm
http://www.methmadness.com/methbodyphotos.html
• Students not permitted in lab
storage or teachers’ workrooms.
Broken Equipment
• Report equipment not working
properly&broken glassw, including
thermometers immediately.
• Your teacher - not you - will
remove all broken glass.
- Never pick up broken glass (or spilled
chemicals) with bare fingers.
Electrical Equipment
• Operate electrical equipment only
in dry area with dry hands.
•When removing an electrical plug
from its socket, pull the plug, not
the electrical cord.
Heating Liquids
• While heating a test tube, hold
test tube in a slanting position
away from all faces.
• When heating material in a test
tube, do not point the test tube at
a person while heating.
Burners
• Light gas burners only
as instructed by the teacher.
– Be sure no volatile materials
(such as alcohol or acetone)
are nearby.
• Use a burner with extreme caution.
• Light the match before you turn on
the gas!
Burners
• While using the Bunsen
burner in lab, your flame
goes out what should you do?
Relight another match.
Ask Mr. Abouaf what to do.
Turn off the gas
immediately.
Chemicals
Never pour reagents back
into bottles, exchange
stoppers of bottles, or
lay stoppers on the table.
Chemicals
•When diluting acids, always pour
acids into water, never the reverse.
“Do as you oughta, add the acid to the watah”
-Combine the liquids slowly
while stirring to move
heat throughout mixture.
Chemicals
•Spilled acids cleaned up with sodium
bicarbonate solution (a weak base).
•Spilled bases can be cleaned up using
vinegar (a weak acid).
Tell the teacher about
the spill before you
clean it up!
• Keep hands away from face, eyes,
and clothes while using any
chemicals or materials in the lab.
• To treat a burn from an acid
or alkali, wash the affected area
immediately with lots of water.
• If the eye is involved, irrigateat
eyewash station for 15 minutes.
Report all to your instructor
immediately.
• Never taste anything or touch
chemicals unless instructed to.
• Test for odor of chemicals only by
waving hand above container &
sniffing from a distance.
Cleanup and Disposal
• Be sure all glass is clean 1st.
• Clean glassware after use.
Residue may cause error in new
experiments or cause explosions.
• Keep work areas clean.
• Clean up any spill on floor or work space.
• Dispose of laboratory waste as instructed
• Use separate, other containers for following:
– Broken glass (White plastic can).
– Rags, paper towels etc… used in the cleanup
of flammable solids or liquids.
– Hazardous/toxic liquids and solids.
Lab Cleanup
• Always clean the lab stations
before leaving.
• Students must wash their hands
with soap &water before leaving
the lab area.
Note:
Persistent or willful violation of
regulations will result in
a loss of laboratory privileges
and possible dismissal from class.
Contact Lenses
• Splashes & fumes from hazardous
chemicals is danger to wearers of
contact lenses. Ask for permission.
• Students should wear regular glasses
(inside splash-proof goggles) during all
class activities.
JUST DO IT!
• Take 10 Minutes now to read the Safety
Rules and Guidelines
• If you do not finish, read the rest at home.
• Return tomorrow with it signed by you
and parents.
Follow it all semester &
Use it for the Safety & Health First Project
A POET’s Science Safety
1)
Goggles, Aprons & Shoes or you lose
2)
Gloves with flame or heat
not plastic – or OUR lungs defeat
3)
1piece of glass at a time – more is a
crime
4)
Lab instructions – no more no less
listen to teacher! Be not Careless!
A POET’s Science Safety
5) Before reaction wait for teacher a/fraction
6) Snap, crackle & pop! Don’t put cold near
hot
7) Monkees for play, hay’s for horse
work only in lab is all I’ll endorse
8) Want a pout and a shout. Clean all!
Don’t leave Chemicals out!
9) Labs with me and only at school
or no doubt you’re a.............. !
Safety and Health First Sample
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To Whom It May Concern:
As an employer of over 1,000 members of the Pacific, CA community, Pacific
Chemicals would like to acknowledge the concerns of community members
and set aside further worries of danger. We would also like to thank
Councilman Whiner for taking charge of the inquiry into Pacific Chemicals’
safety procedures.
First, there have been accusations made in the community recently that our
company has been causing environmental and health hazards for several
years. These hazards have allegedly contributed directly to several cancer
deaths of former employees in Pacific, CA. As President of Pacific Chemicals,
it is my responsibility to inform the community of Pacific, CA that these
accusations are entirely false.
First of all, Pacific Chemicals’ factory in Town, State is limited to the
production and research of one chemical, methane. Methane is a non-toxic
chemical that naturally appears in many everyday products, like lawn
fertilizers. There have been no medical studies or cases in which methane has
been found to contribute to the cause of any disease or cancer.
Second, Pacific Chemicals’ cares about its employees and the communities of
which they are a part. Our company has insisted on the highest safety
standards since its creation in 1964. Most recently, Pacific Chemicals’ further
upgraded safety procedures and rules to meet the demands of the United
States Government following the 911 terrorist event. Here are just a few of the
safety guidelines all of our employees abide by:
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From the Pacific Chemicals Safety Rules and Guidelines (2003)
Dispose of all chemical waste properly. Follow specific instructions for
chemical disposal given by laboratory supervisors. Check label of waste
container twice before disposing. (14)
Keep hands away from face, eyes, mouth, and body while using chemicals.
Wash your hands thoroughly after use of chemicals. (17)
Never return unused chemicals to their original containers. (31)
Always put appropriate lids or stoppers back on the stock bottles or
containers immediately when finished. Many chemicals absorb moisture from
the air. (32)
When transferring agents from one container to another, hold the containers
away from your body. (35)
Concentrated acids must be handled with extreme care. (36)
Take great care when transferring acids or other chemicals from one part of
the laboratory to another. (38)
Third, the production and research of the chemical methane is very important
to American society. A committee of the City Council of Pacific, CA has
recommended that Pacific Chemicals cut production of methane by 50%.
Methane is a key ingredient in natural gas. More than 1/3 of the total energy
consumed in the United States last year was from natural gas. What will
happen if a major producer of methane cuts its production in half? The results
could be disastrous. In addition, methane is important to research into
alternative fuel sources. This is very important in the United States. What will
happen to this research? It would not be wise to find out.
In conclusion, there is no reason to be concerned about methane production in
Pacific, CA. Safety guidelines at Pacific are above and beyond expectation.
Methane is a safe and important chemical in society. Therefore, Pacific
Chemicals will not cut production of methane.
• Try the first safety quiz and be prepared for the
test.