TABLE 7. Boiling-point elevation of dextrose solutions log at=a+ IIC+"C2+cl C3 Pressure a fJ cl Average maximum " deviation deviation mmHg °C ° C 233.72 -0.989843 5. 113375XIQ-' -7.377463X1O-1 5.526503XIQ-' ±0.D17 +0.032 355.22 -.982743 5. 191070 -7.435453 5. 463234 ±.O23 + .045 525.86 -. 967871 5. 239106 -7.477459 5. 427242 ±.O28 +.055 760.00 -. 944029 5.235447 -7.427223 5.345987 ± .O3l +.061 1, 074.58 -.918243 5. 251193 -7.490898 5.396036 ±.O33 +.067 1,489.14 -.885843 5.225459 I -7.476027 5. 404016 ±.O33 +.067 are useful, however, in calculating the boiling point elevations of dextrose solutions to within 0.05° to 0.1° C. Molal boiling point elevations of aqueous solutions of dextrose have been measured by Juettner [8], but only at normal atmospheric pressure.A com-TABLE 8. Molal boiling-point elevation of dextrose solutions (760 mm Hg ) Molal ity Jucttncr [8] 'l' his paper ---------• 1 ----1 ° Clmole ° Clmole I 0.53 0.520 2 .53 .525 3 .53.53l 4 .. 537 5 .544 6 .5527 .561 8 .570 9 .580Iournal of Research of the National Bureau of Standards I parison of his values with those of this investigation is given in table 8. Apparently, there are no other published measurements of the vapor pressures of aqueous solutions of dextrose in th e range reported in this paper.IV.
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