Chapter I

Impurities, error due, 74
Incineration, purpose and conduct, 37, 38
Insoluble fat acids, determination, 391, 392
Inversion, application of the process, 114
calculation of results, 108, 109
determination of sucrose, 105
influence of strength of solution, 108
time of heating, 108
Invert sugar, estimation of minute quantities, 257
gyrodynat, 119
influence of temperature on gyrodynat, 265
occurrence, 264
official method, 161-162
optical neutrality, 265
separation and estimation, 264
table for calculating, from copper, 260
estimating, 159, 258
Invertase, determination of activity, 111, 112
use, in inversion, 110, 111
Invertose, molecular weight, 177
Iodin addition, 364-367
character of chemical reaction, 367
monochlorid, substitution for hübl reagent, 370
number, estimation, 369-370
reaction with starch, 196
reagent for caffein, 584

J
Juices, analysis of fruit and vegetable, 578

K
Keratin, 416
Kieselguhr, use in drying, 486
Knorr, extraction apparatus, 44
fractional analysis of meats, 552
Koettstorfer, saponification value, 382, 383
Koumiss, acidity, 532
composition, 532, 536
Kreatin, 416
composition, 431
determination, 454
occurrence in milk, 464
Kreatinin, 416
composition, 451
determination, 454
Krug, method of determining oxygen absorption of oils, 405, 406
estimating pentosans, 179, 183
separation of oleic and hypogaeic acids, 399
viscosity of oils, 345