A treatise on alcohol, with tables of spirit-gravities / by Thomas Stevenson.

  • Thomas Stevenson
Date:
1888
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on alcohol, with tables of spirit-gravities / by Thomas Stevenson. Source: Wellcome Collection.

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    ] NTK0DU0X1 OX. (he sp. gr. at 00° F. (water at 60° F. = 1) as 79391. Drinkwater found : Sp. gr. -79381 at 00° F. (water at 60° F. = 1). Messrs.Squibb (‘Ephemeris,’ 1884; ‘Chemical News,’ 1885, vol. lxi. pp. 5, 21, 33) have ob- tained alcohol of a lower specific gravity than any previous observer had recorded. Their pro- duct had its specific gravity -79350 at 60° F., com- pared with water taken as unity at the same tem- perature, no other correction for the buoyancy of the air being made than by the use of a counter- poising flask. According to their data, an alcohol of ‘7938 true sp. gr. at 60° F. would contain 99-9 per cent, of alcohol by weight; and proof spirit will contain 49-14, and not 49-24, percent, of alcohol, as calculated by Drinkwater. Absolute Alcohol. (Squibb.) True sp. gr. at 00° F., -79350 ; water at Go F. = 1. True sp. gr. (relative density) at 4° C., -80257 ; water at 4 C.=l. Absolute density, -80258 (1 cub. cent, water at 4° C.=1000013 grammes). Apparent sp. gr. at 60° F., -79301; -water at 4CC. = 1. Sp. gr. at 60° F., water at 4° C. = 1, corrected for expansion of glass, -79279. Coefficient of expansion, when compared with water at 4°, -00082GG for each degree Cent, at G0° F., or -0004592 for each degree Fahr.
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