. Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products. the correction varying from 6 per cent,to 26 per cent., with only four results out of thirty-six giving a value of 10per cent, or under. The continued use of the 10 per cent, deduction is an instance of the per-sistence of a once accepted error in spite of numerous protests. 526 CHAPTER XXV Determination of Gums.—By gums are meant those bodies insoluble inalcohol; loo of juice are concentrated to a volume of about 20 , andpoured into 100 of 90 per
. Cane sugar; a textbook on the agriculture of the sugar cane, the manufacture of cane sugar, and the analysis of sugar-house products. the correction varying from 6 per cent,to 26 per cent., with only four results out of thirty-six giving a value of 10per cent, or under. The continued use of the 10 per cent, deduction is an instance of the per-sistence of a once accepted error in spite of numerous protests. 526 CHAPTER XXV Determination of Gums.—By gums are meant those bodies insoluble inalcohol; loo of juice are concentrated to a volume of about 20 , andpoured into 100 of 90 per cent, alcohol containing i hydrochloricacid. The precipitate is allowed to settle and washed by decantation withstrong alcohol, collected on a tared filter paper, or, better, in a Gooch crucible,and dried to constant weight. The increase in weight gives gums and ash ;the weight of ash is determined, and being deducted from the weight of gumand ash gives the weight of gum. Acidity and Alkalinity.—100 of the juice are titrated from a burettewith decinormal alkali; to the juice a few drops of phenolphthalein solution.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectsugar, bookyear1921
