Transcript Chemical Storage in Stock Room

Bio Sciences: Chemicals
Biological and
Chemical
Storage
Bellwork
What two (2) dates should always be on a
biological sample label?
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Objectives
1. Identify Biological storage container used
in a stock room
2. List the two (2) main categories of
chemicals
3. List subcategories of chemicals and
where those groups should be stored in a
stock room
4. Design a proper biological and chemical
stock room set up
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Terminology
Inorganic: Any substance in which two or
more chemical elements generally other
than carbon are combined.
Organic: Generally any member of a large
class of compounds whose molecules
contain carbon.
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The Grocery Store
Think of a super market or a grocery store.
With your partner, list five (5) ways the
store has items organized and why.
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The Grocery Store and The
Stock Room
Just like a grocery store, biological and
chemical supply rooms are organized
according to the type of “product”, or in
the case of a stock room by type of
biological/ chemical based on categories.
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Biological Storage in Stock Room
Usually need to be stored in a refrigerator or freezer.
MAKE SURE ITEMS ARE LABELED
CORRECTLY
Short-term storage:
Refrigerator
Should be between 2°C and -4°C
Long-term:
Freezer
Either -20°C or -80°C
Liquid Nitrogen: -210 °C
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Chemical Storage in Stock Room
Generally organized by category:
Inorganic: Any substance in which two or more
chemical elements generally other
than carbon are combined.
Organic: Generally any member of a large class
of compounds whose molecules contain carbon.
Each category has subcategories as well.
But above all else, items must be stored in clearly
and properly labeled closed and intact containers.
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Chemical Storage
Subcategories
Flammables
Oxidizers
Reducers
Concentrated Acids
Concentrated Bases
Water Reactive
Peroxides
Gas Cylinders
Biological
Poisons
What is the difference between
biologicals and chemicals?
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Chemical Storage in Stock Room
We will use an adapted suggested chemical
storage scheme from Flinn Scientific for
high school chemical stock room set ups.
In short -The set up is designed to not only
categorized chemicals (NOT by
alphabetical order) but to also separate
them based on reactivity.
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Chemical Storage of Inorganics
Not to worry if you are not familiar with
they types of chemicals, you will learn
about some of them as the year
progresses. What is important is that you
can use this sheet to help you identify
where a chemical should be stored based
on the information given on the label.
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Chemical Storage of Inorganics
cont.
Let’s take a look at inorganic. First, is what you
will find on a shelf, where no special cabinets or
refrigeration is needed.
With your
partner, find what
category
permanganates
and nitrate are in.
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Chemical Storage of Inorganics: Acids
All acid, especially concentrated, should be stored
in a dedicated acid cabinet, ventilated is best.
Some organic acids may be stored here.
Ex. acetic acid
NEVER store nitric
acid (HNO3) with
other acid. Nitric
acid should be
stored by itself.
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Chemical Storage of Organics
Now let’s take a look at organics. First, is what
you will find on a shelf, no special cabinets or
refrigeration needed.
With your
partner, find what
category Amines
and Amino Acids
are grouped in.
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Chemical Storage of Organics:
Flammables
Like the word says, they will catch on fire; therefore,
they should be stored in a special cabinet that meets
NFTP and OSHA standards – basically it should be
able help minimize the risk of a fire starting.
Refrigerated flammables should ONLY
be stored in a special flammables
refrigerator.
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Chemical Storage of Organics:
Poisons
Some laboratory experiments require the use of
dangerous poisons. These should always be
stored in a locked cabinet.
If the label says
“Poisonous”- it
probably is a poison.
Recall: Think-Pair-Share,
what the six means on the
white poison MSDS
diamond.
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Biological and Chemical Gas
Cylinders
Compressed gas cylinder and aerosols are
used in many laboratory experiments.
Need to be stored up right
position and secured with a
chain in their own section of
the stock room.
Some biological aerosols may
need to be stored in a
refrigerate – check labels!
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Your Stock Room
With your partner you will use your “
Biological and Chemical Storage” and the
“My Stock Room Set Up” to design a
proper biological and chemical stock
room.
Read all instructions before you begin to
cut and glue.
Before the period is over, you need to have
completed the set up and labeling.
Be prepared to share with the class.
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Closure
Summarizes, in 12 words or less, the most
important aspects of the days lesson.
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