GLASSWARE HANDELING AND INFORMATION

6. Conical Flask

7. WEIGHING BOTTLE

27. Chemicals and Safety
Chemicals and Safety

28. Chemicals – Helpful and Harmful

29. Basic Rules of Chemical Safety
Be Aware!
Be Alert!
Be Alive!

30. Sample of Chemical Label

31. Causes of Injury
Principle modes of chemical injury:
1. Chemical Burns (strong acids, strong bases)
2. Heat Burns (flammable materials)
3. Poisoning (many chemicals are damaging or
fatal if taken internally, whether by
swallowing, injection, or leaching through
skin)
4. Chronic illness (long-term exposure to even
low doses of certain chemical agents can
lead to chronic health conditions)

32. Chemical Categories

33. Chemical Categories
Acids & Bases
A corrosive substance is
one that will damage or
destroy other substances
with which it comes into
contact by means of a
chemical reaction.

34. Chemical Categories
Liquids with a flashpoint less than 60oC (140oF) are considered
flammable chemicals.

35. Chemical Categories
Oxidizers
Common examples of oxidizing agents include halogens
(such as chlorine and fluorine), oxygen, and hydrogen peroxide (H2O2)

36. Chemical Categories
Pyrophoric Substances
Pyrophoric materials are substances that ignite instantly when exposed to
oxygen. They can also have water-reactive properties, resulting in the
production of heat and hydrogen (a flammable gas)

37. Chemical Categories
Carcinogens
This may be due to the ability to
damage the genome or to the
disruption of cellular metabolic
processes.
a biological substance that poses
a threat to the health of living
organisms, primarily humans.