heptoic

[Gr. hept a = seven; o connective, and suff. -ic.) (See compound.) heptoic-acids, s. pl. Chem.: C7H14O2, Or C6H13 COOH. Acids belonging to the fatty series, having seven carbon atoms. Seventeen acids are po ible; the only important one is the normal heptoic acid, or cœnanthylic acid. It is obtained by the oxidation of enanthol, rnormal heptyl alcohol. It can also be obtained by boiling normal hexyl cyanide with caustic potash; also by the oxidation of castor oil with nitric acid. It is a transparent, colorle oil, having an unpleasant smell. It boils at 223°. Heated with baryta it yields hexane C6H14. It forms crystalline salts. Its ethylic ether boils at 180°. heptoic-aldehyde, s. Chem.: C7H14O, or C6H13 CO.H. Enanthylic aldehyde, or enanthol, is obtained by the dry distillation of castor oil. It is a stinking liquid, boiling at 155°. hěp-těl, s . [Gr. hept a =seven; -yl =Gr. hyle = matter.] Chem.: C7H15. A monatomic fatty radical, containing seven carbon atoms. heptyl-alcohols, s . pl . Chem.: C7H15 OH. Alcohols belonging to the fatty series, containing seven carbon atoms. Thirty eight of these alcohols are theoretically po ible, and thirteen are known. The normal heptyl alcohol, CH3(CH2)5'CH2OH, is obtained by the action of nascent hydrogen, from sodium amalgam and water, on heptyl aldehyde (œnanthol), or by converting normal heptane into the chloride, and acting on this by silver acetate, and distilling the resulting acetate with caustic potash. It is a col. orle , oily liquid, boiling at 177°. heptyl-chloride, s. The American Dictionary and Cyclopedia heptylene