39 6 



Tables 461 -462 

 ROTATION OF PLANE OF POLARIZED LIGHT 



TABLE 461. — Tartaric Acid; Camphor; Santonin; Santonic Acid; Cane Sugar 



A few examples are here given showing the effect of wave length on the rotation of the plane of polarization. 

 The rotations are for a thickness of one decimeter of the solution. The examples are quoted from Landolt & 

 Bornstein's "Phys. Chem. Tab." The following symbols are used: — 



p = number grams of the active substance in ioo grams of the solution. 



solvent 

 active 

 Right-handed rotation is marked +■ left-handed 



cubic centimeter 



Supplementary to Table 461 



Values obtained at the Bureau of Standards for the rotation of sucrose are given below. 



The above values are for a near normal solution, i.e. approximately 26 g of sucrose per 100 cc. 



TABLE 462. — Sodium Chlorate ; Quartz 



* The paper is quoted from a paper by Ketteler in Wied. Ann. vol. 21, p. 444. 

 Smithsonian Tables 



