optical rotation

American  

noun

Physical Chemistry.

1. the angle at which the plane of polarized light is rotated when passed through an optically active substance.

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optical rotation British  

noun

1. the angle through which plane-polarized light is rotated in its passage through a substance exhibiting optical activity

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Etymology

Origin of optical rotation

First recorded in 1890–95

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Example Sentences

See Examples For:

optical rotation

Specific gravity at 15° C., 0.938-0.960; optical rotation, -35° to -45°; refractive index at 20° C., 1.5013-1.5030.

From The Handbook of Soap Manufacture by W. H. Simmons

Spanish Oil.—Specific gravity at 15° C., 0.900-0.915; optical rotation, -2° to +7°; esters, calculated as linalyl acetate, 2-6 per cent.; soluble in 1-2 volumes of 70 per cent. alcohol.

From The Handbook of Soap Manufacture by W. H. Simmons

Specific gravity at 15° C., 0.870-0.905; optical rotation, slightly dextro-rotatory up to +2°; soluble in 4-5 volumes of 70 per cent. alcohol.

From The Handbook of Soap Manufacture by W. H. Simmons

Its specific gravity at 15° C. is 0.854-0.870; optical rotation, +38° to +54°; soluble in 5-8 volumes of 90 per cent. alcohol.

From The Handbook of Soap Manufacture by W. H. Simmons

Expressed Oil.—Specific gravity at 15° C., 0.870-0.885; optical rotation, +38° to +50°.

From The Handbook of Soap Manufacture by W. H. Simmons

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