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HYDROCARBONS

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Originally appearing in Volume V26, Page 651 of the 1911 Encyclopedia Britannica.

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HYDROCARBONS , CtoH18, OF THE TERPENE See also:

SERIES (a Latin word from serere, to join)

SERIES Menthene, C,H,(See also:

CH3) (C3Hr)', is methyl-i-isopropyl-4-cyclohexene-3. It is obtained by the See also:

ACTION

action of anhydrous See also:

ZINC

zinc chloride or See also:

COPPER (symbol Cu, atomic weight 63.1, H=1, or 63.6, O = 16)

copper sulphate on menthol (J. W. Brfihl, Ber., 1892,• 25, Q. 142), by boiling menthyl chloride with See also:

ANILINE, PHENYLADIINE, or AMINOBENZENE, (C6H5NH2)

aniline (G. See also:

Wagner, Ber., 1894, 27, p. 1636), by See also:

HEATING

heating menthyl chloride with See also:

POTASSIUM [symbol K (from kalium), atomic weight 39.114 0=16)]

potassium phenolate (L. See also:

Masson, Ber., 1896, 29, p. 1843), and by the dry See also:

DISTILLATION (from the Lat. distillare, more correctly destillare, to drop or trickle down)

distillation of the methyl ester of menthyl xanthate (L. Tschugaeff, Ber., 1899, 32, p. 3333). It is a colourless liquid which boils at 167-168° C.

When strongly heated with copper sulphate it yields cymene. According to Tschugaeff, the xanthate method alone gives a pure menthene of the above constitution, the menthene obtained from the dehydration of menthol being a cyclohexene-4; and the one obtained by 0. Wallach (See also:

Ann., 1898, 300, p. 278) from 1-menthylamine being a cyclohexene-2. Carvomenthene, C6H3(CH3)(C3H7), is probably methyl- l-isopropyl-4-cyclohexene-I. It is prepared by heating carvomenthyl bromide with See also:

QUINOLINE (Benzopyridine), C9H7N

quinoline, or by heating carvomenthol with potassium bisulphate to 200° C. It is a liquid which boils at 175-176° C. See also:

CAM (CAO), DIOGO (fl. 1480-1486)

Cam phone, C;H9(CH3)2 is 1.7.7-trimethyl-bicyclo-(r•2. )-heptane. It is prepared by the action of See also:

SODIUM [symbol Na, from Lat. natrium; atomic weight 23.00 (0=16)]

sodium and See also:

ALCOHOL

alcohol on pinene hydriodide, or by reducing the hydriodide with zinc in acetic See also:

ACID (from the Lat. root ac-, sharp; acere, to be sour)

acid See also:

SOLUTION (from Lat. solvere, to loosen, dissolve)

solution. It is a crystalline solid which melts at 153° C. and boils at 160° C.

End of Article: HYDROCARBONS

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