Table of Contents
Introduction to Prepare Colloidal Solution of Starch
A colloidal solution is a heterogeneous mixture in which one substance, the dispersed phase, is suspended throughout another, the dispersion medium. In the case of starch, the dispersed phase is the starch granules and the dispersion medium is the water. To Prepare Colloidal Solution of Starch Practical Experiment – Procedure.
To prepare a colloidal solution of starch, the starch granules must be broken down into very small pieces. This can be done by heating the starch granules in water until they burst. The resulting mixture is then called a starch paste.
The starch paste can then be mixed with more water to create a colloidal solution. The greater the amount of water mixed in, the more dispersed the starch will be.
Experiment to Prepare Colloidal Solution of Starch
Starch is a complex carbohydrate that is found in the plant kingdom. It is a white, tasteless, odorless powder that is insoluble in water. In order to make a colloidal solution of starch, the powder must be dissolved in a solvent. In this experiment, water is used as the solvent.
The first step is to dissolve the starch in a small amount of water. This can be done by stirring the powder into the water until it is completely dissolved. Once the starch is dissolved, more water can be added to the solution until it is the desired concentration.
The next step is to heat the solution until it begins to boil. Once it boils, the solution must be stirred constantly. If it is not stirred constantly, the starch will settle to the bottom of the container and form clumps.
The solution is then allowed to cool. Once it has cooled, it can be poured into a container and stored in the refrigerator.
Figure 1: Preparation of Starch Solution
A starch solution is prepared by dissolving starch in water. The starch is a polysaccharide made up of glucose units. The water is added to the starch and stirred until the starch is fully dissolved. The solution is then transferred to a container and stored in the refrigerator.
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Preparation of Colloidal Solution of Starch
A colloidal solution of starch is made by dissolving starch granules in water. The starch granules are solubilized by the water and the resulting solution is a colloidal dispersion.
