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An oily, slightly water-soluble liquid, C7H6O2, having an almondlike odor: used chiefly in perfumery and in the synthesis of coumarin.

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Hydrometer

A device used to measure the densities of liquids and solutions.

Metal

An element below and to the left of the stepwise division (metalloids) in the upper right corner of the periodic table, about 80% of the known elements are metals.

Dissociation Constant

Equilibrium constant that applies to the dissociation of a comples ion into a simple ion and coordinating species (ligands).

Eluant or eluent

The solvent used in the process of elution, as in liquid chromatography.

 

Solvolysis

The reaction of a substance with the solvent in which it is dissolved.

Gel

Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.

Insulator

Poor electric and heat conductor.

Cell Potential

Potential difference, Ecell, between oxidation and reduction half-cells under nonstandard conditions.

 

Meniscus

The shape assumed by the surface of a liquid in a cylindrical container.

Flammable

A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).