Safety moments

Safety moment 3

• Sulfuric acid eats away at the sponge until sodium bicarbonate is added (base neutralizes the acid)

• The pink sponge made of cellulose → shows how sulfuric acid can corrode and burn through skin

Safety moment 4

Use absorbent materials, close containers, and remove external hazards to prevent a fire

n/a

n/a

n/a

n/q

Facts about fire
-Water cannot be used to extinguish a class ___ fire
-Removing heat keeps the ___ from vaporizing
-The fuel must be _____ to burn

-Water cannot be used to extinguish a class D fire
-Removing heat keeps the fuel from vaporizing
-The fuel must be vaporized to burn

Which of the following are true about bleach?
-Nitrile gloves have a ___ min breakthrough time for bleach
-Bleach is a weak reducing agent
-Bleach can causes severe ___ burns and ____ damage
-If a significant amount of ____ is spilled on you, get into the _____ immediately
-Bleach forms poisonous chlorine and chloramine gas when combined with ____

-Nitrile gloves have a 480 min breakthrough time for bleach
-Bleach can causes severe skin burns and eye damage
-If a significant amount of bleach is spilled on you, get into the shower immediately
-Bleach forms poisonous chlorine and chloramine gas when combined with ammonia

What GHS components are incorporated in SDS?

pictograms
signal words
hazard ratings
hazard statements
precautionary statments

What should be done while handling a corrrosive?
-if exposed...
-discard _____ after contamination of taking off
-wear _____, _____, and _______
-carry bottles in _______ _______
-use in the fume hood if the ______ is a _______ hazard
-long or short clothing? ____-shedding closed toed shoes
-know the location of the ____ stations

-if exposed wash off skin immediately
-discard gloves after contamination of taking off
-wear gloves, goggles, and lab coat
-carry bottles in secondary containers
-use in the fume hood if the _corrosive is a inhalant hazard
-long clothing water-shedding closed toed shoes
-know the location of the eyewash stations

Which of the following play significant roles in the extent of injury or harm when exposed to a hazardous chemical?
-atmospheric pressure
-relative humidity-availability of safety equipment
-the amount of chemical one is exposed to
-the amount of time one is exposed to the chemical
-how the chemical entered the body

-the amount of chemical one is exposed to
-the amount of time one is exposed to the chemical
-how the chemical entered the body

match to minimize exposure:
ingestion, eye exposure, inhalation, skin exposure, injection:
-cap flasks containing volatile liquids
-clean surfaces, wear gloves and lab coat
-do not put anything in your mouth thats been in the lab
-always wear goggles
-use dustpan and broom to clean up broken glass

ingestion: do not put anything in your mouth thats been in the lab
eye exposure: always wear goggles
inhalation: cap flasks containing volatile liquids
skin exposure: clean surfaces, wear gloves and lab coat
injection: use dustpan and broom to clean up broken glass

match the airborne particle with its description
mists, fumes, dusts, smoke, nanoparticles
-tiny liquid droplets
-solid particles suspended in the air
-colloidal suspension of liquid particles in the air
-ultra fine homogenous partiles
-mixture of dry particles and drops of liquid

mists-tiny liquid droplets
dusts-solid particles susended in the air
fumes-colloidal suspension of liquid particles in the air
nanoparticles-ultra fine homogenous partiles
smoke-mixture of dry particles and drops of liquid

What are parts of the design of laboratory ventilation? (ie: fume hoods and hallways)

-lab air leaves through the fume hoods
-air enters the labs through heating/cooling ducks and hallway air
-hallway air flows into the lab

5. Perform reactions using (or evolving) noxious or highly combustible chemicals in a ___
6. Report and __ all spills immediately.

5. fume hood
6. clean up

9. Extinguish all flames or ignition sources when using ___ and/or volatile chemicals.
10. Place all left‑over chemicals in the appropriate collection bottles in the hood. Do NOT dump chemicals into the ___

9. flammable
10. sink or trash