First dissociation constant of o-phthalic acid and standard pH values for 0.05 m potassium hydrogen phthalate in 50 wt.% ethanol/water solvent from 25 to -10.degree.C

1989 ◽  
Vol 34 (3) ◽  
pp. 347-350 ◽  
Author(s):  
D. Richard White ◽  
Nicole A. Harris ◽  
Jason P. Rife
Keyword(s):  
Dissociation Constant ◽  
Phthalic Acid ◽  
Potassium Hydrogen Phthalate ◽  
Hydrogen Phthalate ◽  
Ph Values ◽  
Water Solvent ◽  
Potassium Hydrogen

Complex organic guests in simple crystals: potassium hydrogen phthalate as case study

2013 ◽  
Vol 48 (10) ◽  
pp. 849-863 ◽  
Author(s):  
Bart Kahr ◽  
Theresa Bullard ◽  
Miki Kurimoto ◽  
James J. De Yoreo
Keyword(s):  
Potassium Hydrogen Phthalate ◽  
Hydrogen Phthalate ◽  
Potassium Hydrogen ◽  
Organic Guests ◽  
Complex Organic

A Rapid Method of Carbon Analysis for Biological Materials

1965 ◽  
Vol 48 (6) ◽  
pp. 1261-1265 ◽  
Author(s):  
L W Smith ◽  
W P Flatt ◽  
K A Barnes ◽  
P J Van Soest
Keyword(s):  
Vanadium Pentoxide ◽  
Induction Furnace ◽  
Molybdenum Trioxide ◽  
Cupric Oxide ◽  
Biological Materials ◽  
Potassium Hydrogen Phthalate ◽  
Hydrogen Phthalate ◽  
Silver Phosphate ◽  
Potassium Hydrogen ◽  
Carbon Analysis

Abstract An induction furnace and a gasometric analyzer have been adapted for the analysis of carbon in biological materials. Samples for analysis must not exceed 70 mg carbon. The number of analyses which can be routinely performed for carbon in an eight-hour day has been increased from 8, by wet combustion, to 50, by the induction furnace method. Hay, concentrate, dried feces, wet feces, milk, and urine have been analyzed by this method with iron, cupric oxide, molybdenum trioxide, and silicic acid used as reagents. Silver phosphate and vanadium pentoxide were required to obtain satisfactory analyses of dried milk. Liquid urine was analyzed successfully by the same methods employed for dried samples except for minor modifications of the combustion tube and catalysts. Analyses on sodium carbonate, glucose, and potassium hydrogen phthalate yielded carbon recoveries of essentially 100%.

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