Constants of the quartz-wedge saccharimeter and the specific rotation of sucrose. I. The constants for the 26-gram normal weight (1916)
National Bureau of Standards · leaf 31
ortest. Nevertheless, the careful measurements of fractions 30-b, 94 Bulletin of the Bureau of Standards [Vol. 13 31-b, 32-a, 27, and 21 indicate that the impurities in the originalsample appear only in the mother liquors. Among these impuri-ties must have been any raffinose which may have been… … Soi, 3lt> Fig. 5.—Diagrammatic representation of fractional crystallization it should have concentrated itself in some fraction after so manyfractionations. The essential identity of the various fractionstested indicates the absence of this and similar substances fromthe recrystallized sucrose.…
Measurements and use of instruments · Light polarisation
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