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Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.

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xylidine

Any of six isomeric compounds that have the formula C8H11N, are derivatives of xylene, and resemble aniline: used in dye manufacture.

Percent Purity

The percent of a specified compound or element in an impure sample.

Coefficient of expansion

The ratio of the change in length or volumen of a body to the original lengthor volume for a unit change in temperature.

xylic acid

Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.

Coulomb

Unit of electrical charge.

Free Radical

A highly reactive chemical species carrying no charge and having a single unpaired electron in an orbital.

Thermal Cracking

Decomposition by heating a substance in the presence of a catalyst and in the absence of air.

 

Saccharic

of or derived from saccharin or a saccharine substance.

 

Alkaline Battery

A dry cell in which the electrolyte contains KOH.

Osmotic Pressure

The hydrostatic pressure produced on the surface of a semipermable membrane by osmosis.