Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant.

CHAPTER VI.

Chapter 5124 wordsPublic domain

ANALYTICAL METHODS 127-164

1. Analysis of Oils and Fats 128 Free Fatty Acids 128-130 Moisture 130 Titer 130-132 Determination of Unsaponifiable Matter 132-133 Test for Color of Soap 133-134 Testing of Alkalis Used in Soap Making 134-137

2. Soap Analysis 137-138 Moisture 138-139 Free Alkali or Acid 139-142 Insoluble Matter 143 Starch and Gelatine 143-144 Total Fatty and Resin Acids 144 Determination of Rosin 144-147 Total Alkali 147-148 Unsaponifiable Matter 148 Silica and Silicates 148-149 Glycerine in Soap 149-150 Sugar in Soap 150

3. Glycerine Analysis 150-151 Sampling 151 Analysis 151-154 Acetin Process for the Determination of Glycerol 155-156 The Method 156-159 Ways of Calculating Actual Glycerol Contents 159-160 Bichromate Process for Glycerol Determination Reagents Required 160-161 The Method 161-162 Sampling Crude Glycerine 162-164