Die Bestimmung von Blei in Trinkwasser

Ohne Zusammenfassung     

Die L?slichkeit des Kochgeschirremails

Ohne Zusammenfassung     

ELECTRICALLY CONDUCTING GLASSES*

Glasses containing lead, bismuth, or antimony oxides or combinations of these become conducting after several hours’ reduction in hydrogen. The electronic surface conductivity is both stable and reproducible. The magnitude of the conductivity depends on the nature and amounts of the reducible oxides, the temperatures at which reduction is carried out, and the electrical influence of the nonreduced portions of the glasses.     

Low-temperature solvent fractionation of corn oil and calculation of its glyceride structure

Summary Corn oil was subjected to a low-temperature solventfractionation process and separated into 19 glyceride fractions; the glyceride structures of the fractions were calculated and added to obtain the glyceride structure of the oil. The experimentally obtained glyceride structure was compared to the structures calculated according to the mono-acid triglyceride, random, even, and partial random schemes and was found to agree most closely with the partial random system. The generous financial assistance of the Corn Products Refining Company, Argo, Illinois, is gratefully acknowledged. Contribution from the Department of Chemistry, University of Pittsburgh.