a simple presentation about types of solution include homogeneous and colloidal and emulsion

1. Types of solutions –Homogeneous
Colloidal-Emulsion
Prepared by:
Fanar Fawaz
University of Zakho
Faculty of Science
Department of
Chemistry
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2. Outline :
• Homogeneous Solution & Properties
• Colloidal solution & Properties
• Types of colloidal
• What is Emulsion ?
• Types of Emulsion
• What is the use of Emulsifying agent ?
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3. A mixture in which its components are uniformly
distributed throughout its volume and cannot be
seen separately is called a homogenous mixture.
Homogeneous Solution
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4. Properties of homogeneous solution
• They are totally transparent, even if they are
colored.
• They go unchanged through a paper filter or a
porous membrane.
• Consist of a single phase
• They look uniform with the naked eye
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5. A colloid is a mixture in which one substance
consisting of microscopically dispersed insoluble
particles is suspended throughout another substance.
Colloidal solution
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6. Properties of colloidal
It is a heterogeneous mixture.
The size of colloidal particles is very small.
Their particle size ranges between 1-1000
nanometers.
It shows the Tyndall effect.
They don’t settle down when left undisturbed
for some time.
They cannot be separated by the filtration
process.
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7. Type of
colloidal
Dispersed
phase
Dispersed
medium
Example
Foam Gas Liquid Whipped
cream
Solid
Aerosol
Solid Liquid Smoke ,dust
Liquid
aerosol
Liquid Gas Fog ,Clouds
Emulsion Liquid Liquid Milk,
Mayonnaise
Types of colloidal
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8. What is Emulsion ?
An emulsion is a mixture of two liquids that are
normally immiscible owing to liquid-liquid phase
separation.
.
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9. Types of Emulsion
1. Oil in water (O/W)
2. Water in Oil (W/O)
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10. What is the use of Emulsifying agent ?
• An emulsifier is a substance that stabilizes emulsions.
• They are substances which have a hydrophilic end (polar)
as well as a hydrophobic end (non-polar).
• They are soluble in both water and oil.
• If the emulsifier is more soluble in water then the water
becomes the dispersion medium and oil becomes the
dispersed phase and hence we get oil in water emulsion.
• if the emulsifier is more soluble in oil, then oil becomes
the dispersion medium and water becomes the dispersed
phase.
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11. References
https://selftution.com/homogeneous-heterogeneous-
mixture-definition-examples-chemistry/
https://byjus.com/question-answer/homogeneous-
mixture-are-known-as-write-their-properties/
https://en.wikipedia.org/wiki/Emulsion
https://byjus.com/jee/emulsion/
https://en.wikipedia.org/wiki/Colloid
https://www.vedantu.com/chemistry/application-of-
colloids
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