D.
Daturic acid, 10
Decolorisation, Glycerine, 115
Decomposition of fats by bacteria, 18
Detergent action of soap, 4, 5
Diglycerides, 7
Dika fat, 36
Disinfectant soaps, 66
Distearine, 7
Distillation, glycerine, 114
Distilled glycerine, 114
Doeglic acid, 11
Double distilled glycerine, 115
Dregs in fats and oils, Determination of, 120, 121
Drying soap, 71, 78-80
Dynamite glycerine, 115
E.
Elaidin reaction, 12
Electrical production of soap, 59
Elaeomargaric acid, 12
Elaeostearic acid, 12
Enzymes, Action of, 15-18
Erucic acid, 11
Essential oils, 96-107
---- ---- Examination of, 127-130
Ester value, 119, 128
Ether soap, 90
Eucalyptus oil, 100
Evaporation to crude glycerine, 112, 113
F.
Fat, Bone, 30
---- Dika, 36
---- Maripa, 34
---- Marrow, 30
---- Niam, 34
---- Tangkallah, 37
---- Treatment of bone, 43
Fats, Decomposition by bacteria of, 18
---- Treatment of animal, 43
---- Waste, 30
Fats and oils, Determination of acid value of, 118
---- ---- ---- of bromine absorption of, 122
---- ---- ---- of dregs, etc., in, 120, 121
---- ---- ---- of free acidity of, 117
---- ---- ---- of iodine absorption of, 121, 122
---- ---- ---- of saponification
---- ---- ---- equivalents of, 118
---- ---- ---- of saponification value, 118
---- ---- ---- of specific gravity of, 117 of titre of, 122, 123
---- ---- ---- of unsaponifiable matter in, 119
---- ---- ---- of water in, 120
---- ---- ---- Yield of glycerine from, 116
Fatty acids, 9-13, 31
---- ---- Classification of, 10
---- ---- Direct combination with alkali of, 45, 46
---- ---- in soap, Determination of, 131
---- ---- ---- Examination of, 133, 134
---- ---- Preparation by acid process, 19-21
---- ---- ---- by ferment process, 16
---- ---- ---- by Twitchell's process, 20
---- ---- Saturated, 11
---- ---- Unsaturated, 11
Fennel oil, 100
Ferment process for preparation of fatty acids, 16
Ferments, action of, 15-18
Ficocerylic acid, 10
Filling soap, 65
Fish oils, 30
"Fitting," 51
Floating soap, 90, 91
Fluorides in soap, 88
Formaldehyde soap, 88
Framing soap, 66
Free alkali in soap, Estimation of, 132
---- caustic in soap, Neutralising, 66
---- fat in soap, Determination of, 133
---- fatty acids, Determination of, 117
G.
Geraniol, 108
Geranium oils, 101
Geranium-sur-rose oil, 101
Ginger-grass oil, 101
Glycerides, 7, 8
Glycerine, Chemically pure, 115
---- Crude, 113, 136-139
---- decolorisation, 115
---- distillation, 114
---- Distilled, 114
---- dynamite, 115
---- in soap, Determination of, 134, 135
---- manufacture, 111-114
---- saponification, 116
---- soaps, 89
---- Yield of, from fats and oils, 116
Glycerol determination, acetin method, 136
---- ---- bichromate method, 137, 138
---- in lyes, Estimation of, 135
Goa-butter, 33
"Graining-out," 50
Grease, Animal, 30
---- Bone, 30
---- Kitchen, 30
---- Skin, 30
Guaiac wood oil, 101
H.
Halphen's reaction, 134
Heliotropin, 108
Hemp-seed oil, 29
Hyacinth, 108
Hyaenic acid, 10
Hydrated soaps, 48, 49
Hydrolysis accelerated by heat and electricity, 14, 15
---- accelerated by use of chemical reagents, 19-23
---- accelerated with acid, 19, 21
---- Enzymic, 15-18
---- of oils and fats, 13-23
---- of soap, 3
Hypogaeic acid, 11