Mixtures and Solutions
Mixture: mixture is a material made up of two or more different substances which are mixed but are not combined chemically. A mixture refers to the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions, and colloids.
What is the difference between a suspension, emulsion, and a colloid?
Colloid: a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. MIlk is an example of a colloid.
Suspension: heterogeneous mixture containing solid particles that are sufficiently large for sedimentation. Usually they must be larger than one micrometer. A suspension is a heterogeneous mixture in which the solute particles do not dissolve but get suspended throughout the bulk of the medium
Emulsion: An emulsion is a mixture of two or more liquids that are normally unmixable. Emulsions are part of a more general class of two-phase systems of matter called colloids. Although the terms colloid and emulsion are sometimes used interchangeably, emulsion should be used when both phases, dispersed and continuous, are liquids
taken from: https://en.wikipedia.org/wiki/Emulsion
What is the difference between a suspension, emulsion, and a colloid?
Colloid: a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. MIlk is an example of a colloid.
Suspension: heterogeneous mixture containing solid particles that are sufficiently large for sedimentation. Usually they must be larger than one micrometer. A suspension is a heterogeneous mixture in which the solute particles do not dissolve but get suspended throughout the bulk of the medium
Emulsion: An emulsion is a mixture of two or more liquids that are normally unmixable. Emulsions are part of a more general class of two-phase systems of matter called colloids. Although the terms colloid and emulsion are sometimes used interchangeably, emulsion should be used when both phases, dispersed and continuous, are liquids
taken from: https://en.wikipedia.org/wiki/Emulsion
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Emulsifiers
definition: a substance that stabilisers a emulsion mixture.
Example:
When water and oil are mixed together and vigorously shaken, a dispersion of oil droplets in water - and vice versa - is formed. When shaking stops, the phases start to separate. However, when an emulsifier is added to the system, the droplets remain dispersed, and a stable emulsion is obtained.
Example:
When water and oil are mixed together and vigorously shaken, a dispersion of oil droplets in water - and vice versa - is formed. When shaking stops, the phases start to separate. However, when an emulsifier is added to the system, the droplets remain dispersed, and a stable emulsion is obtained.
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