ACID 



powder, soluble in water and alcohol, obtained from 

 indigotin by action of 7-10 parts of fuming sul- 

 furic acid. Syn. , Sulfopurpuric acid; Phenicinsul- 

 furic acid. A., Indoxylsulfonic, A., Indoxylsul- 

 furic, C\H 6 XO.S0 3 K, indoxyl sulfate of potas- 

 sium, derived from indol of the intestine by oxida- 

 tion and excreted normally in small amount in the 

 urine but increased by putrefactive changes in the 

 bodv ; it occurs in colorless gleaming tablets and plates 

 ly soluble in water. Syn., Animal indican ; Indi- 

 can of urine. A., Inorganic, a mineral acid or one 

 in which the carboxyl group CO . OH is absent. A., 

 Inosinic, C 10 H 13 X 4 O s P, a primary nucleinic acid oc- 

 curring in muscle tissue and containing hypoxanthin 

 1 as a base. A., Iodoboric, a compound of boric and 

 iodic acids. A., Iodoortho-oxybenzoic. See A., 

 j Monoiodosalicylic. A., Iodosalicylic. See A., Mo- 

 \ noiodosalicylic. A., Iodosobenzoic, C 6 H 4 . OI . CO- 

 • 0H.„ a compound analogous in action to iodoform. 

 A., Iodotannic. See Iodo tannin (Illus. Diet.). A., 

 Isethionuric. See A., Taurocarbamic. A., Iso- 

 butylcarbonic, A., Isobutylcarboxylic. See A., 

 Valeric, Xormal. A., Isobutylformic. See A., 

 I Isovaleric. A., Isolactic, lactic acid. A., Iso- 

 propylacetic. See A., Ism'aleric. A., Isotar- 

 taric, Laurent and Gerhardt's name for tartralic 

 acid. A., Isouric, C 5 H 4 X 4 3 , an acid, isomeric with 

 uric acid, obtained by boiling alloxanthin and cyan- 

 araid, forming a heavy insoluble powder. A., Iso- 

 valeric/ (CH S ) 2 . CH. CH 2 . C0 2 H, an isomer of 

 ! valeric acid, obtained from oil of valerian or from ox- 

 j idation of amyl alcohol, occurs as a transparent, color- 

 less, oily liquid with odor of valerian and old cheese ; 

 ! melts at 51 C, boils at 174 C. Sp. gr. 0.9470 at 

 0°C. Used in nervous affections. Max. dose, I O drops; 

 day 40 drops. Syn., Monohyd rated valerianic 

 ■ : Valerianic acid ; Primary pentoic acid ; Isobutyl 

 xyl ; Isopropylacetic acid. A., Jatrophic. See A., 

 , in Table of Fatty Acids (Illus. Diet.). A., 



ijecoleic, an acid forming one of the essential con- 

 stituents of cod-liver oil and isomeric with doeglic 

 acid. A., Jervic, C u H 10 O 12 , a tetrabasic crystalline 

 acid found in the root of Veratrum album, L. A., 

 Kakodylic. See A., Dimethylarsenic. A., Karabic, 

 A. karabique. See A., Succinic. A., Ketonic, 

 one derived from a ketone by substituting the acid 

 characteristic CO. OH for an atom of hydrogen. A., 

 Kinic. See A., Quinic (Illus. Diet.). A., Kinovic. 

 See A., Quinovic. A., Kombic, a compound ob- 



| tained by Fraser in the lead precipitate from an 

 aqueous solution of alcoholic extract of strophanthin. 

 It is freely soluble in water and of strongly acid reac- 

 tion. A., Kresotic. See A., Cresotic. A., Kres- 

 ylic. See Cresol (Illus. Diet.). A., Kynurenic. 



! See A., Cynurenic. A., Lactolactic. See A., Lac- 

 lactic. A., Lactylolactic, C 6 H 10 O 5 , a monobasic 



1 acid obtained from a solution of lactic acid heated to 

 130 to 140 C. It occurs as an amorphous, pale yel- 



| low mass, soluble in alcohol and water, soluble with 

 difficulty in water. Syn., Lactyl lactate; Lactolactic 



\ acid- Lactic ankydrid ; Lactyl anhydrid. A., Lano- 

 cenc, ( ;w H 60 O 4 , an acid resulting from the saponifica- 

 tion of lanolin ; it melts at 104 C. A., Lanopal- 

 minic, C 16 H 32 3 , resulting from the saponification of 

 lanolin. It melts at 87 . A., Lantanuric. See 

 anturic. A., Lapachoic, C 15 H 14 3 , Paterno*s 



I name for the coloring-matter of lapacho wood, a 

 species of Bignonia. It forms yellow prisms melting 



I »t 138 C, giving a beautiful red color with alka- 

 lis and with sulfuric acid a blood-red coloration. 

 A., Leucamic. See Leucin (\llus. Diet.). A.s, 

 Leucinic, acids obtained by oxidation of leucins. A., 



29 ACID 



Levocamphoric, A., Laevocamphoric, camphoric 

 acid prepared from matricaria camphor ; it is levorotary. 

 A., Levopimaric, A., Laevopimaric, a modification 

 of pimaric acid crystallizing in rhombic pyramids 

 which melt at I40°-I50° C, soluble in alcohol. Its 

 levorotation is at times as great as the dextrorotation of 

 dextropimaric acid. A., Levotartaric, the levorotary 

 variety of tartaric acid. A., Lichenic. See A., 

 Fumaric. A., Lithenic, A., Lithic, uric acid. A., 

 Lithobilic, a bile-acid found in bezoar stones. A.. 

 Lithofellic, A., Lithofellinic, C M Hjg0 4 , a crystalline 

 acid and chief constituent of the bezoar stones from a 

 Persian antelope ; melting-point 204° C. A., Lith- 

 uric, C 15 H 19 X0 9 , an acid obtained in only one instance 

 from the urine of the ox. A., Lizaric, C 30 K 10 O 9 , a 

 crystalline acid obtained by Debus from the coloring- 

 matter of madder. A., Lobelic, a crystalline acid 

 found in Lobelia injlata, L., forming small yellow 

 needles soluble in water, alcohol, and ether. A., 

 Loco, the toxic principle of loco weed, Astragalus 

 mollissimtts. A., Lokainic, A., Lokaonic, C H H W - 

 2T , a dibasic acid found by v. Kayser in lokao (Chi- 

 nese green), occurring as a powdery blue-black mass 

 which assumes a metallic gleam on pressure ; it is in- 

 soluble in water, alcohol, ether, chloroform, or ben- 

 zene; soluble in alkalis, with a clear blue color. Syn , 

 Lokain. A., Lokanic, CggHjgO.^j, a glucosid obtained 

 from lokainic acid by action of dilute sulfuric acid with 

 heat ; insoluble in water, alcohol, ether, and chloro- 

 form. Its alkaline solution is violet-blue, which by dilut- 

 ing becomes rose-red. Syn. , Lokaetin. A., Lupa- 

 maric, the bitter acid of hops. A., Lysuric, C 6 H 12 - 

 (COC 6 H 3 ) 2 X 2 2 , a substance obtained by Drechsel 

 from lysin by action of benzoyl chlorid and homolo- 

 gous with ornithuric acid. A., Maleic or Maleinic, 

 C 4 H 4 4 , obtained from malic acid by distillation ; it 

 occurs in prisms, soluble in water, alcohol, and ether, 

 melting at 130 C, boiling at 160 C. A., Mar- 

 garic, A., Margarinic, Cj.H^Oj, an acid apparently 

 not existing in the fats, as was supposed, obtained by 

 boiling cetyl cyanid with alcoholic potash ; it occurs as 

 transparent crystals or white amorphous powder, melts 

 at 59°-6o° C. and boils at 227 C. at 100 mm. Syn., 

 Ileptadecoic acid. A., Margaritic. See A., Ricino- 

 stearic. A., Margarous, Chevreul's name for stearic 

 acid. A., Marine, hydrochloric acid. A., Melan- 

 urenic, A., Melanuric. See Ammelid (Illus. 

 Diet.). A., Mephitic, carbon dioxid. A., Mesity- 

 lenuric, C n H 13 X0 3 , a nitrogenous acid found in urine 

 and produced in the body by the conjugation of glyco- 

 coll with mesitylenic acid. A., Mesotartaric, inac- 

 tive tartaric acid obtained by heating 30 parts of tar- 

 taric acid with 4 parts of water for 2 hours to 165 C. 

 A., Mesoxalluric. See A., Alloxan ic (Illus. Diet.). 

 A., Metaboric, HB0 2 , a monobasic acid formed from 

 boric acid by heating it to ioo° C. A., Metachlor- 

 hippuric, C 6 H 4 C1 . CO . XHCH 2 . CO . OH, a tena- 

 cious amorphous substance, somewhat soluble in boil- 

 ing water, excreted in the urine after the ingestion of 

 monochlorbenzoic acid. A.. Metacopaivic, C M - 

 H 34 4 , an acid found by Strauss in Maracaibo copaiva 

 balsam occurring in white flakes, melting at 205 °— 

 206 C, easily soluble in alcohol, in ether, in caustic 

 potash, and in ammonia, insoluble in water. A., 

 Metaiodoorthooxyquinolinsulfonic. See Loretin. 

 A., Metallic, an inorganic acid in which the acid 

 radicle is a metal or metallic oxid. A., Metanitro- 

 salicylic, Asymmetric, C-H 5 X0 5 , a nitroderivative 

 of salicylic acid occurring in colorless needles soluble in 

 alcohol and 1475 parts of hot water at 150 C, melting 

 at 228 C. Syn., a-Nitrosalicylic acid. A., M eta- 

 phosphoric, Diluted, a solution of 780 grains of 



