628 PRACTICAL ORGANIC AND BIO-CHEMISTKY 



Indoxyl, 344-345> 35O. 



Inflammable liquids, 13, 18, 19. 



Ink, 275. 



Inorganic constituents, analysis, tissues, 573, 



574- 



Inosinic acid, 301. 

 Inositol, 310, 311. 

 Inositols, 310, 311. 

 Interfacial tension, 389. 

 Internal compensation, 116. 

 Intestinal juice, 398, 401, 402, 409. 

 Inulase, 395. 



Inulin, 184, 188, 205, 213, 395- 

 Inversion, 199. 

 Invertase, 199, 202, 393, 395, 401, 403, 413, 



419. 



Invert sugar, 199. 

 Inverted condenser, 18. 

 Iodine, estimation in tissues, 574. 



value (fats), 179, 180. 

 lodobenzene, 241-242, 249. 

 lodoform, 62, 67, 91, 305. 



reaction, 67, 91, 112. 

 lodol, 305. 

 lodothyrin, 449. 



Iron, detection in haemoglobin, 31. 



estimation, 547-548. 

 Irreversible colloids, 378, 385, 386. 

 Isobilianic acid, 322. 

 Isoborneol, 317. 



Isobutane, 49. 



Isobutyl alcohol, 68. 



Isobutyric acid, 98. 



Isochlorophyllins, 520, 522. 



Isocholesterol, 321. 



Isocyanates, alkyl, 124, 125, 161, 163. 



Isocyanides, alkyl, 61, 126, 159. 



Isocyanuric esters, 161. 



Isohaemopyrrole, 304, 306, 516, 523. 



Iso-indigotin, 346. 



Isolactose, 197. 



Isolation of organic compounds, 3-27. 



Isoleucine, 98, 138, 318, 361. 



Isomaltose, 197, 202. 



Isomers, 50, 54. 



Isonicotinic acid, 309. 



Isonitrile, phenyl, 61. 



reaction, 6l, 126, 247. 

 [sonitrosomalonyl urea, 280. 

 Isophonopyrrole carboxylic acid, 304. 

 [sophthalic acid, 263. 



Isoprene, 54, 312, 317, 318. 

 Isopropyl alcohol, 68, 88. 



iodide, 68. 

 Isoquinoline, 350. 

 Isothiocyanates, alkyl, 163. 

 Isovaleric acid, 98. 



JACOBY'S method (pepsin), 423. 

 JaftVs reaction (creatinine), 171. 

 Junket, 462. 



KEPHALIN, 175, 176. 



Kerasin, 176. 



Keratins, 454. 



Kerosene, 51, 52. 



Keto acids, 106, 113, 119, 395. 



Ketone group, 88. 



Ketones, 58, 88-92, 183, 258. 

 Ketose, 184, 185, 186, 303. 

 Kjeldahl's method (nitrogen), 35-38. 

 Koilin, 454. 

 Kryptopyrrole, 304, 306, 516, 523. 



LACTALBUMIN, 446, 447, 459- 

 Lactase, 395, 402, 403, 419. 

 Lactates, in, 112. 

 Lactic acid, uo-112, 183, 190. 

 -- estimation, 590 592. 

 -- in gastric contents, 395, 427. 

 --- muscle, 447. 

 ^actoglobulin, 446, 457, 459. 

 p-lactone formula, 187. 

 Lactones, 276. 

 L,actosazone, 200. 



Lactose, 184, 189, 192, 197, 198, 200, 395t 

 407, 457. 459, 462. 



estimation, 235. 



hydrolysis, 395. 

 Laevulinic acid, 191, 299. 

 Laevulose, 188, see Fructose. 

 Laking of blood, 476. 

 Lanolin, 175, 319, 321. 

 Lard, 175, 177. 



Lassaigne's test (nitrogen), 29. 

 Laudanosine, 359. 



Laurie acid, 93, 98. 

 Leather, 369. 



Leaves, pigments, 519-532. 

 Lebedeff's method (zymase), 403. 

 Lecithins, 127, 175, 176, 457, 463, 544. 

 Lecitho-vitellin, 463. 

 Legal's test (acetone), 91. 

 -- (aceto-acetic acid), 120. 

 Legumelin, 450, 451. 

 Legumes, protein content, 450. 

 Legumin, 450. 

 Lehmann-Maquenne method (glucose estima- 



tion), 232. 

 Lentils, protein content, 450. 

 Leucine, 138, 139, 318, 361, 48. 

 Leucosm, 450, 451. 

 Leucyl-alanine, 363. 

 Lieben's reaction (iodoform), 67, 91. 

 Lieberkiihn's jelly, 370. 

 Liebermann's reaction (cholesterol), 321. 

 -- (proteins), 367. 

 Light oil, 240. 

 Lignin, 211. 



Lignocellulose, 205, 211. 

 Ligroin, 10, 13, 22, 51, 52. 

 Limonene, .312, 316, 317. 

 Linalool, 313. 



Ling-Rendle's indicator, 224. 

 Ling's method (diastase), 417. 

 Linoleic acid, 105. 

 Lintner's method (diastase), 417. 

 Lipase, 177, 395, 397, 404-405, 415, 4 2 - 

 Lipins, 175. 

 Lipochromes, 532. 



Liquids, determination boiling-point, 4-6. 



distillation, 4-6. 



evaporation, 13 14. 



fractional distillation, 9. 



