You can use filtration to separate them. First, you pour the water with the seeds through a filter funnel which is lined with filter paper. Then the filter paper will trap the insoluble substance (the barley seeds). the water will then pass through the filter paper and collected in a beaker as the filtrate.
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To separate water after boiling barley seeds, you can use a strainer or colander to strain the seeds from the water. Pour the mixture through the strainer, allowing the water to drain out while retaining the barley seeds in the strainer. Repeat the process as needed to ensure all the water has been separated from the seeds.
The boiling point of cyclohexylamine is 134.5C and the boiling point of water is 100C. I would use distillation in order to separate cyclohexylamine and water. Because the b.p. of water is lower, the water will separate first.
To separate seeds from water, you can use filtration. Simply pour the water and seeds through a fine mesh sieve or filter paper. The seeds will be caught by the sieve while the water will pass through.
You can separate seeds by method of hand picking.Or many a times different seeds have different densities and they might get separated by putting the mixture in water as the lighter seed would float.
Water that has boiled and just slightly cooled is good for leguminous seeds which have a very hard coating. However, beans do not like being submerged in water and their seeds are not as hard as some others in their family.
Mixtures of liquids with significantly different boiling points can be separated by boiling, a process called fractional distillation. For example, you can separate a mixture of ethanol and water by heating it to a temperature at which ethanol boils, but water does not. The ethanol vaporizes, travels through a fractionating column, and then condenses back into a liquid form, thus separating it from the water.