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42 Cards in this Set

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3 aspects to wearing gloves in lab
-match glove to what your going to do

-know your going to be more clumsy

-be aware there are different types of gloves for specific chemicals
In case of fire

for small fire...
break the seal and remove the pin

stay 8 to 10 ft. from fire

press lever and aim at base of flames

sweep the base of fire with a steady stram of short birsts
Compressed gases

what has to be done when you transport a cylinder?
When you transport a cylinder it has to be capped.
How do you use the right regulator?
There is a specific regulator for each specific gas
What should always be done with high pressure cylinders?
High pressure cylinders should be firmly tied into place
3 ways chemicals can enter the body
1)skin and eye contact
2)inhalation
3)swallowing
What do you do when chem gets in your eyes?
wash with plain water for 15 min. minimum
Which is more dangerous to get in the eye; acids or bases?
Bases
Dangerous chemicals
-Hydrocarbons b/c they get oxidized and get CO2 as a biproduct

-Radioactive: Uranium

-Oxidizers: peroxides, Cr compounds (high oxid. #), Mn compounds, nitrates, NOx, halogens, bleach

-Heavy metals : Pb, Hg
Acetone CH3-CO-CH3

why is the chemical dangerous?
flammable, explosive hazard
methanol
highly toxic, highly flammable and explosive
ethanol
flammable, central nervous system depressant
glycerol
do not confuse with ethyl gylcol--highly toxic, mildly toxic
Ammonia--NH3
extremely irritating and corrosive to eyes
Nitric Oxide NO
toxicity is due to ready oxidation to NO2
Nitrogen Dioxide NO2
Strong oxidizer, can cause severe lung damage
Oxidants
Ammonium Nitrate NH4 NO3
Lead Nitrate Pb(NO3)2
Iron Nitrate
Ammonium dichromate
Hydrogen Proxide H2O2
Halogens
-most reactive nonmetal
-HF is really bad
-all halogens are really bad
Metals

Na
very water reactive
metals

K
one of the most reactive metals
Metals

Mg
reacts with oxidizing agents
Metals

Hg
highly toxic by skin contact, absorption, or inhalation
Metals

Pb
systemic poison that affects the nervous system, enters body through inhalation or ingestion
Handling Peroxidizable chemicals
1)stored in dark and exclusion of air

2)must be tested for peroxide presence before heating or evaporating

3)sensitivity of most peroxides to shock and heat

4)date all peroxidizable chemicals when opened

5) don't use metal spatulas with peroxides
Strong reducers
Hydrazine NH2
hydrides
hydrogen
sodium, lithium, potassium
water reactive
sodium, lithium, potassium
Halides
Hydrides LiAlH4
To avoid hazardous chemical combos do what?
use chemical reactivity sheet
chemicals found in car
anitfreeze--made from ethylene glycol

gasoline

battery acid--sulfuric acid--extremely corrosive
chems found in backyard
swimming pool chems
-chlorine, sodium carbonate
types of chlorinating agents
inorganic->calcium hypochlorite, lithium hypochlorite, Sodium hypochlorite
Pesticides
inorganic->contain heavy metals->mercury, lead, arsenic, zinc->toxic to humans

-sodium borate used to kill cockroaches
Chems found in laundry room
Bleach and ammonia

-mixing the two is a common accident
Misc around the house
nail polish remover
kitty litter
rug cleaner
paint
Ethics
principles of conduct governing individual or group
Integrity
firm adherance to code of moral values
Types of radiation
gamma- most penetrating-causes severe damage to internal organs

beta particles-if ingested my be absorbed by bones and cause damage

alpha particles-can be shielded by skin but if ingested can be harmful
protection for shock
insulating
grounding
circuit breakers
removal of jewelry
inerlocks
Lazer Hazards

Lazer beam hazards
eye and skin burns
what protection is used when dealing with lasers?
Goggles with side shields are preferred because they provide protection against back reflection and side entrance of stray laser beams.
strong acids
hydrochloric acid HCl
nitric acid HNO3
sulfuric acid H2SO4
hydrobromic acid HBr
hydroiodic acid HI
perchloric acid HClO4
clean water act
restoration and maintenance of surface waters through prohibition of discharge of toxic and non toxic pollutants
Hazardous waste
has characteristic of ignitability, corrosivity, reactivity, and toxicity