File:An attempt to oxidize glucose by induction (1917) (14796486863).jpg

Identifier: attempttooxidize00schu (find matches)
Title: An attempt to oxidize glucose by induction
Year: 1917 (1910s)
Authors: Schulz, John A
Subjects: Glucose Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
focyanide (inductor) Carried on a series of titrations with varying amounts of approximately M/10 KMn04 and KCNS solutions, with and without the presence of 5cc glucose solution (.25 gm. per 100cc solution). The KCNS was placed in a flask; to this was added 20cc(1-5) H0So. and an excess of KMnO^, together with the glucose solution. This was allowed to stand at room temperature for thirty minutes and then the excess KMn04 was titrated back with KCNS. The amounts of KCNS and KMnO used, with and without the 4 presence of glucose, were plotted against each other. The verticaldistance between the two curves represents the amount of KMnO^used by the glucose in the presence of KCNS. The curves run almostparallel to each other, leading us to conclude the the KCNS didnot induce the oxidation of the glucose by the KMnOA• cc cc KMnO.4 KCNS 5.1 5.1 5 5 10.2 10.2 10 10 15.4 15.3 15 15 20.4 20.4 20 20 25.5 25.5 25 25 30.6 30.5 30 30 35.7 35.7 35 35 40.8 40.9 40 40 45.9 46.0 45 45 51 .1 51.0 50 50
Text Appearing After Image:
U. Or I. S. S. FORM 3 14 cc cc KMnO, KCNS4 Glucose (100cc=.25 gm. 2.5 2.1 5cc 0 0 10.1 10.2 5cc 5 5 13.88 13.88 5cc 10 10 19.88 19.78 5cc 15 15 23.88 23.78 5cc 20 20 28.78 28 78 5cc 25 25 33.1 33.1 5cc 30 30 38.1 38.2 5cc 35 35 43.1 43.1 5cc 40 40 48.1 48.0 5cc 45 45 53.0 53.2 5cc 50 50 Hydrogen Peroxide (actor) and Ferrous Ammonium Sulfate (inductor) Carried on a series of titrations with varying amounts of approximately N/10 H^Og and ferrous ammonium sulfate solutions with and without the presence of 5cc glucose solution, (.25 gm. per lOOcc solution). The solution were made acid by the addition of 20cc (1-5) H So„ to each titration.2 4 The amounts of ferrous ammonium sulfate and HgOg used, withand without the presence of glucose, were plotted against each other.The curves run almost parallel to each other, tending to prove thatthe ferrous ammonium sulfate did not induce the oxidation of theglucose by Ho0o. 15. Ferrous Ammonium Sulfate H2°2 cc cc 5-5 5.3-5.3 10-10 10.6-10.6 15-15

Note About Images