TOPIC: Glassware used in The laboratory
Laboratory Assignment:
Glassware Used in the Laboratory
Objective:
The objective of this
laboratory assignment is to familiarize students with the various types of
glassware commonly used in pharmaceutical laboratories and their specific
applications.
Introduction:
Glassware is an essential component of any laboratory, especially
in the field of physical pharmacy. The choice of glassware depends on the
specific requirements of the experiment or analysis being conducted. This
assignment aims to provide an overview of commonly used glassware and their
functions.
Glassware
and Their Applications:
1. Beakers:
|
Description: Beakers are cylindrical containers with a flat bottom and a
lip for easy pouring. Application:
Used for general mixing, stirring, and
heating of liquids |
 |
2. Round bottom flask:
|
Description: Specifically shaped for
uniform heat distribution, the round bottom flasks with a narrow
neck, Application: Used for distillation,
chemical reactions, heating liquid sample, and storage demands. |
 |
3. Volumetric flask:
|
Description: Volumetric flasks have
a long neck and a flat bottom. Application: Volumetric flasks are
used for precise volume measurements. |
 |
4. Pipettes:
|
Description: Available in various types, such as volumetric pipettes, Mohr
pipettes, and serological pipettes. Application: Precise measurement and transfer of specific volumes of
liquids. |
 |
5. Burettes:
|
Description: Long, graduated tubes with a stopcock at the bottom. Application: Used in titrations for delivering precise volumes of a liquid
reagent. |
 |
6. Test
Tubes:
|
Description: Small, cylindrical tubes with a rounded bottom. Application: Used for small-scale reactions, mixing, and observation. |
 |
7. Graduated Cylinders:
|
Description: Tall, narrow cylinders with calibrated volume markings. Application: Accurate measurement and transfer of liquid volumes. |
 |
8. Funnels:
|
Description: a tube or pipe that is wide at the top and narrow at the
bottom Application: used for guiding liquid or powder into a small opening. |
 |
9. Glass rod:
|
Description: made of soda-lime, borosilicate or quartz Application: used for stirring, mixing, and transporting liquids. |
 |
10. Petri Dishes:
|
Description: Shallow, circular dishes with a lid. Application: Used for cultivating microorganisms and observing small
samples. |
 |
11. Glass Pycnometre:
|
Description: Glass bottle have a ground glass stopper with a capillary tube
for air bubbles to escape. Application: Used for measuring and comparing densities or specific
gravities of liquids and solids, including soil. |
 |
12. Stalagmometre:
|
Description: A capillary glass tube whose middle section is widened. Application: Measuring
surface tension, thickness of a fluid and was commonly used to quantify
alcohol content. |
 |
Conclusion:
This assignment aims to enhance your understanding of the diverse glassware used in pharmaceutical laboratories. Proper knowledge of glassware is crucial for accurate and reliable experimental results in physical pharmacy.
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