The Date Sugar Industry in Bengal An Investigation Into Its Chemistry And Agri
The Date Sugar Industry in Bengal An Investigation Into Its Chemistry And Agri
Harold Edward Annett
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The following results corrected, were obtained : Sugar from date palm . . . . . . . . 181 C. Cane sugar (as above) . . . . . . . . 182 C. Tate's cube sugar . . . . . . . . . . 182 C C. It may be mentioned that the melting point of sucrose is given in all text-books as 163 161 C. Bailstein also gives 160, but mentions that 180 was found by Peligot. Under no circumstances were we able to get sucrose to melt at 160 161, and this statement of the melting point of sucrose in text-books needs correct...ion. The sugar separated from the date palm is therefore shewn to be sucrose as in the case of cane sugar. Fifty gms. Of date gur were dissolved in water. A determin- ation of the amount of reducing sugar present was made, and this amounted to about 7 per cent. To the above a solution of phenyl hydrazin acetate was added containing 12 gms. Phenyl hydrazin, 12 gms. Of glacial aceiic acid and 30 c. C. Of water. The liquid was heated inside a water bath for 2J hours. An osazone began to separate after 25 30 minutes.
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