Distillation and Filtration - Key terms



AZEOTROPE:

A solution that has been subjected through distillation and is still not fully separated, but cannot be separated any further by means of distillation. An example is ethanol, which cannot be distilled beyond the point at which it reachesa 95% concentration with water.

CONDENSATE:

The liquid product that results from distillation.

CONDENSATION:

The cooling of a gas to form a liquid or condensate.

DISTILLATE:

The vapor collected from the volatile material or materials in distillation. This vapor is then subjected to condensation.

DISTILLATION:

The use of heat to separate the components of a liquid and/orgas. Generally, distillation is used to separate mixtures that are homogeneous.

FILTRATE:

The liquid or gas separated from a solid by means of filtration.

FILTRATION:

The separation of solids from a fluid (either gas or liquid) by allowing the fluid to pass through a filter. Generally, filtration is used to separate mixtures that are heterogeneous.

HETEROGENEOUS:

A term describing a mixture that is not the same throughout; rather, it has various regions possessing different properties. An example is sand in a container of water.

HOMOGENEOUS:

A term describing a mixture that is the same throughout, as for example when sugar is fully dissolved in water. A solution is a homogenous mixture.

MIXTURE:

A substance with a variable composition, composed of molecules or atoms of differing types. Compare with pure substance.

PURE SUBSTANCE:

A substance—either an element or compound—that has an unvarying composition. This means that by changing the proportions of atoms, the result would be an entirely differentsubstance. Compare with mixture.

SOLUTE:

The substance or substances that are dissolved in a solvent to form a solution.

SOLUTION:

A homogeneous mixture in which one or more substances is dissolved in an another substance—for example, sugar dissolved in water.

SOLVENT:

The substance that dissolves a solute to form a solution.

SUSPENSION:

A term that refers to a mixture in which solid particles are suspended in a fluid.

VOLATILE:

Easily vaporized.

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