. California agriculturist and live stock journal. Agriculture -- California; Livestock -- California; Animal industry -- California. m'w Vol. e. Saxi Jose, Cal., May, 1S75. No. 5. CARBOIiIC ACID. Its Nature and Uses. By JOHN D. SCOTT, M. D. ^ iS'tt'ds. Aghicultueist: In 1832 Keichinback Jfi, discovered iu beech tar a peculiar sub- Ay^ stance -which, from the jiroperty which jjti/ it possessed of preserving meat, he called creosote, from two Greek words meaning meat-preserver. Two years afterwards Riinge discovered a similar substance in coal tar, to which he gave the name of Carbolic Acid, a
. California agriculturist and live stock journal. Agriculture -- California; Livestock -- California; Animal industry -- California. m'w Vol. e. Saxi Jose, Cal., May, 1S75. No. 5. CARBOIiIC ACID. Its Nature and Uses. By JOHN D. SCOTT, M. D. ^ iS'tt'ds. Aghicultueist: In 1832 Keichinback Jfi, discovered iu beech tar a peculiar sub- Ay^ stance -which, from the jiroperty which jjti/ it possessed of preserving meat, he called creosote, from two Greek words meaning meat-preserver. Two years afterwards Riinge discovered a similar substance in coal tar, to which he gave the name of Carbolic Acid, a contraction of carbou-oil-acid. It was con- tended for some time that these two sub- stances were identical, but upon careful chemical analysis they were found to be dis- tinct articles, although possessing some analo- gous properties. "It differs from creosote by being decidedly acid, in being precipitated by acetate of lead, and not being acted upon by ammonia and air, but changed by even dilute nitric acid into a red-brown substance; it also precipitates gelatine; all which proper- ties are wanting in ; Owing, how- ever to this close resemblance, creosote is often largely adulterated with carbolic acid. In the shops it occurs in two forms, solid and liquid. When perfectly pure it is found in white masses, or crystals, or in a white liquid heavier than water, but as ordinarily kept the crystals and liquid are of a more or less brownish-red color, owing to imiiurities. It combines with Ume and other bases, when the products are known as carbolates, some of which are very valuable and largely used in the arts. It is very volatile, hence its gi-eat value as a disinfectant. It is also powerfully antisep- tic. A green hide immersed for 21 hours iu an aqueous solution of the acid of the strength of 10 or 15 per cent, will be preserved upon drying for years from putrefaction. It in- stantly deprives stinking fish or meat of its offensive odor, and arrests further
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