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Mr. Jorden
Cuts and Burns
• These are the two most common injuries…• Cuts can be prevented by checking to see if
glassware is chipped, or broken…also clean up any glass you break. – Allow to bleed briefly…..wash with soap and
water
So you burned yourself……
Tell Mr. Jorden
Immediately put the burned area under cool water until the burning sensation subsides.
Someone has fainted???
Give the person fresh air!
Make sure their head is lower than the rest of their body.
If the person does not recover then artificial respiration may be needed.
SMALL FIRES on counter
In order to put out a small fire in the laboratory you must place an over turned beaker on top of the fire.
It cuts off the supply of oxygen.
FIRE!
In case of a small fire, such as a beaker engulfed in flames…
FIRE!
You should cover the beaker with a watch glass and leave the cover there until the flame dies out.
In case of a large fire…
use a fire extinguisher to put out the flame …
USING A FIRE EXTINGUISHERPull pin
Aim
Squeeze handle
Move back and
forth
If a person catches on fire….
Wrap them in the nearest fire blanket.
Fire Blanket
• Use the fire blanket when a person catches on fire
• If someone catches on fire, wrap them up in the blanket and put them on the ground
• Do NOT cover up the persons head with blanket, it does not let oxygen through
Chemistry Safety Notes
If you forget your safety glasses, bad things, like blinding an eye, could happen
See how UNcool he looks from
his eye injury
IF YOU SPILL A CHEMICAL…
• If you spill a chemical in your eyes, immediately use the eyewash fountain to wash the liquid from your eyes
• Remember, if you have contacts take them out before you use the eyewash fountain.
• DO NOT RUB EYE!! (a foreign object could scratch your eye!)
In Case You are Poisoned...
• IMMEDIATELY– Identify the chemical
substance you ingested– Notify the teacher– If necessary, contact
medical assistance
Poison
Sometimes we may have to force you to vomit.
Are you bleeding severely?
Apply pressure to the wound and get medical attention immediately.
If harmful chemicals were to make contact with your skin…..
Make sure the teacher is notified as you rinse it off in the sink right away.
If it is a larger spill on your clothes and can’t be reached by the sink, take your clothes off immediately and if it made contact with skin get under shower.
Neutralize acids with baking soda and neutralize bases with boric acid.
Be Prepared
• When you come to class be prepared to to immediately begin the lab.– Familiarize yourself
with the lab procedures before beginning the lab.
• Perform only those lab activities assigned by Mr. Jorden.
• Never do anything that is not called for in the laboratory procedure or by your teacher.
Chemistry Safety Notes
Work areas should be clean and tidy
DO NOT take other materials into the laboratory.
Chemistry Safety Notes
DO NOT wear open toed shoes
However fashionable they may be
Always wear closed-toe shoes
WRONG!
OUCH
SANDALS cont’d…
Some people don’t listen and this is the outcome
Attractive !!
HAIR
If you have long hair tie it up, if you have a long beard tie it up and put it over your
shoulderMr. Jorden has extra hair ties on his desk.
Chemistry Safety Notes
If you forget to tie back hair, it could catch on fire.
Looks like it hurts too!
Always wear safety goggles
WRONG!
GOGGLES cont.
Or this could happen
Before you start your lab also make sure that you are wearing
an apron
This will prevent harmful chemicals from spilling on your skin or ruining
your clothes
APRON
Always wear your apron….
Set-up apparatus as described
• Never use makeshift arrangements.
• ALWAYS use the prescribed instrument (tongs, test-tube holder, forceps, etc.) for handling apparatus or equipment.
Keep all combustible materials away from open
flames….You might accidentally set
your homework on fire.
Pre-Lab
Never Touch or taste any substance in the lab unless instructed to do so.
Never put your face near the mouth of a container that is
holding chemicals
Always smell chemicals with a wafting motion
ALL RIGHT!
WRONG!
How to Sniff in the Laboratory
You should never place your nose directly above an apparatus in order to smell the odor of the contents.
Look what happened to little Jonny!
The Right Way
Always waft in order to smell a substance
Clean up all spills immediately
If a harmful chemical is spilled and not cleaned up, the next person to encounter it
could be harmed!
WHEN MR. JORDEN IS OUT
When the teacher is knocked out …
JORDEN cont.
Call one of these numbers for help
Do not return used chemicals to their original containers
When mixing an acid and water…
always add the acid to the water
ACID
H20
Chemical Spills (continued)
• If you spill a chemical on yourself, wash the area well with soap and water, tell your teacher, and seek medical attention if needed.
• If a chemical spills on your clothes, take them off and wash yourself off with the safety shower.
HANDLING GLASSWARE• Always carry glass pieces in
a vertical position to avoid stabbing anyone.
• Never handle broken glass with your bare hands. Use a brush and dustpan to sweep up the broken glass.
• Always lubricate glassware.
Incorrect Procedure
Never try to force glass tubing through an aperture without lubricating the end of the glass tubing, as well as the hole into which it will be inserted. Also, do not press with your palms, as illustrated to the right – doing so may cause the tubing to break or impale/cut you.
Proper Procedure
LUBRICATION
Glass tubing lubrication Lubricating the stopper
Consequences of Recklessness
This happens when you are not careful
Allow plenty of cooling time before touching glass
PATIENCE, MY FRIEND!
WRONG!
Checking Heat
Don’t grab an object that
has recently been heated.
Always use the back of your
hand to determine if an object is
still hot after removal from
a flame.
This is what happens when you aren’t careful!
When heating liquids in test tubes using a burner….
Be sure to tilt the test tube away from you
-NEVER heat anything unless instructed to do so.
-NEVER look into a container that is being heated.
-When heating a substance in a test tube, make sure that the mouth of the tube is pointed AWAY from yourself or others.
Heating Substances
The First Test- Conclusions
Never heat a CLOSED CONTAINER!!!!
The End!
