Transcript chapter 2

CHAPTER 3
Chemicals in organic
and pharmaceutical
laboratories
Chemicals in Organic Chemistry
Laboratories
•Labeling of Chemicals:
All chemicals present in a research or training
laboratory must be labeled appropriately. This is
simply a very critical safety rule. Therefore, students
should never use a chemical container without a
label on it. In addition, it is expected that all
students properly label the chemical containers that
they prepare.
Storage of Chemicals, Chemical Cabinets, and Laboratory
Registration
There are rules for the storage of
chemicals in laboratories. Some of
them are related to the safety
guidelines and some of the rules are
created to easily find a chemical in a
laboratory.
There are lots of laboratory cabinets to
store chemicals. Each cabinet has to
have a label on it. Acid and base
cabinets are separately designed to
store acids and bases, respectively. It is
a safety rule that no acid solution
container should be stored near by a
base
solution
container.
Chemical Segregation
Store acids in a dedicated acid cabinet. Nitric acid
should be stored alone unless the cabinet provides a
separate compartment for nitric acid storage.
Store highly toxic chemicals in a dedicated, lockable
poison cabinet that has been labeled with a highly
visible sign.
Store volatile and odoriferous chemicals in a ventilated
cabinet.
Store flammables in an approved
flammable liquid storage cabinet.
Store water sensitive chemicals in
a water-tight cabinet in a cool and
dry location segregated from all
other chemicals in the laboratory.
Storage Don’ts
Do not place heavy materials, liquid chemicals, and
large containers on high shelves.
Do not store chemicals on tops of cabinets.
Do not store chemicals on the floor, even temporarily.
Do not store items on bench tops and in laboratory
chemical hoods, except when in use.
Do not store chemicals on shelves above eye level.
Do not store chemicals with food and drink.
Do not store chemicals in personal staff
refrigerators, even temporarily.
Do not expose stored chemicals to direct heat or
sunlight, or highly variable temperatures.
Material Safety Data Sheet (MSDS) for Organic
Compounds
MSDS is the abbreviation of “Material Safety Data
Sheet”. MSDS for organic compounds give
information on organic molecules in terms of hazard
and health issues.
An MSDS for organic molecule can be easily found
through various web sites.
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