Medical Chemistry: Including the Outlines of Organic and Physiological Chemistry : Based in Part Upon Riche's Manual de Chimie

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Lindsay & Blakiston, 1879 - Pharmaceutical chemistry - 424 pages
 

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Page 139 - When distilled with three times its weight of sodalime it furnishes piperidine, a limpid liquid having the taste of pepper, and also its odor, soluble in water and alcohol, boiling at 106. This body is alkaline and saturates acids. It contains a single atom of hydrogen replaceable by methyl, ethyl, etc. CONIA, CONYLIA. OR CONINE. This body is obtained from hemlock (Conium maculatum); the crushed seeds are distilled in a large glass retort, with a solution of potassa, or soda, whereupon an alkaline...
Page 37 - Essence of lemon also gives two dichlorhydrides at once, one liquid, the other solid. Oil of turpentine may be obtained in a pure state, on distilling the commercial article in a vacuum. Thus obtained, turpentine is colorless, limpid, very volatile, and has a characteristic odor. It is insoluble in water; very soluble in alcohol and ether. It burns with a smoky flame; on exposure to the air it oxydizes and becomes resinous.
Page 55 - ... 2. Its use as a medicine is chiefly that of a cardiac stimulant, and often admits of substitution. " 3. As a medicine, it is not well fitted for self-prescription by the laity, and the medical profession is not accountable for such administration, or for the enormous evils arising therefrom. " 4. The purity of alcoholic liquors is, in general, not as well assured as that of articles used for medicine should be. The various mixtures when used as medicine, should have definite and known composition,...
Page 183 - ... to only 3 B., when a syrup is obtained known as starch syrup. Honey treated with cold concentrated alcohol, also furnishes glucose. The crystals of glucose are small, opaque, and ill denned. They are represented by the formula C6H12O6,2H2O, but they may be obtained having the composition C6H12O6 by precipitating the glucose in boiling concentrated alcohol. The water may also be driven oft' by heating the glucose to about 100.
Page 25 - These substances include amber, retinasphalt, asphalt, retinite, and many other allied bodies which are chiefly contained in the tertiary strata. In many instances they are the products of the action of an elevated temperature upon vegetable bodies; and when this is the case, they form irregular deposits which impregnate the strata around. In many cases the bitumens occur in regular beds, which appear to have been formed in a manner similar to the deposits of true coal. Certain important building...
Page 134 - ... is now applied to a large number of organic compounds, many of which, in their external characters, exhibit very little resemblance to common alcohol.
Page 13 - ... C3H8. are gaseous at ordinary temperatures, the highest containing 20 or more carbon-atoms, are solid, while the intermediate compounds are liquids, becoming more and more viscid and less volatile, as they contain a greater number of carbon-atoms, and exhibiting a constant rise of about 20 C. (36 F.) in their boiling points for each addition of CH2 to the molecule.
Page 55 - 1. Alcohol is not shown to have a definite food value by any of the usual methods of chemical analysis or physiological investigation. " 2. Its use as a medicine is chiefly that of a cardiac stimulant, and often admits of substitution.
Page 13 - Hjo+j. by abstraction of one or more pairs of hydrogen-atoms. But a saturated hydrocarbon, CH4, for example, may give up 1, 2, 3, or any number of hydrogen-atoms in exchange for other elements ; thus marsh gas, CH4, subjected to the action of chlorine under various circumstances, yields the substitution-products...
Page 15 - Amidoxypropyl Methylpropyl Diethylpropyl. From the radicals above mentioned, all well-defined organic compounds may be supposed to be formed by combination and substitution, each radical entering into combination, just like an elementary body of the same degree of equivalence. Organic compounds may thus be arranged in the following classes : I.

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