Q:

What is the difference between a colloid and suspension?

A:

The main difference between a colloid and a suspension is that a suspension will separate into particles, but a colloid will not. A colloid is the middle line between a suspension and a solution.

A suspension is composed of at least two substances that are visible in the suspension. These substances are heterogeneous in nature and they are able to be separated. A suspension is also larger than 10,000 Angstroms. When comparing a suspension, a colloid and a solution, the suspension will most likely be affected by the sedimentation of particles. The light that is seen in a suspension is variable. Both a suspension and a colloid are cloudy.

A colloid often looks similar to a suspension because they are both cloudy in nature, but a colloid is homogenous, unlike a suspension. The particles are not easily distinguishable and they are not easily separated. A colloid can vary in size between 10 and 1,000 Angstroms, but is always smaller than a suspension. The particles that are in the colloid are able to be distinguished by light through the Tyndall light effect. Colloid mixtures are not able to be distinguished by any amount of sedimentation and are not affected by sedimentation.


Is this answer helpful?

Similar Questions

  • Q:

    What makes gelatin a colloid?

    A:

    Gelatin, when dissolved in water, is a colloid because the protein molecules that compose it, mostly derived from collagen, are much larger than usual dissolved molecules, but they remain evenly dispersed throughout the water. Specifically, it is a type of colloid known as a sol, a colloid of solid particles dispersed through another substance. The lesser ingredient in a colloid, in this case gelatin, is called the dispersed phase.

    Full Answer >
    Filed Under:
  • Q:

    What is a mixture that can be separated by filtration?

    A:

    A suspension is a mixture containing solid particles that can be separated by filtration. Charles E. Ophardt of Elmhurst College explains that a mixture is a combination of two or more substances that are not chemically united and do not exist in fixed proportions to each other.

    Full Answer >
    Filed Under:
  • Q:

    What factors play a role in separating pigments with paper chromatography?

    A:

    When using paper chromatography, the solubility of the pigments, how attractive the paper is and the size of the particles influence the separation of pigments. The process of chromatography works to separate substance mixtures into their individual components.

    Full Answer >
    Filed Under:
  • Q:

    What is the difference between a solution and a suspension?

    A:

    A solution is a mixture featuring solutes that have been dissolved, while a suspension is a mixture of liquids also containing solid particles that may not completely dissolve inside the liquid. Materials that dissolve in liquids are considered soluble. When no more solute dissolves in a particular solvent while temperature remains the same, the solution is considered to be saturated.

    Full Answer >
    Filed Under:

Explore