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Questions related from P. Abraham
The two plots in the attached figures illustrate spectra for copper-polyethylenimine (Cu-PEI) and copper-polyacrylic acid (Cu-PA2) complexes. In the spectrum for Cu+1.7 ppm PEI (first plot) there...
11 July 2020 8,491 3 View
The dense membranes in question are cast by phase inversion, using THF as a solvent. The goal of course is to obtain a dense polymeric membrane. However, some "pores" are formed. This could be due...
24 October 2019 8,510 3 View
The pH of the ammonium chloride solution was raised to 11 by adding caustic. Based on the NH3 gas probe reading, the concentration of NH3 in NH4Cl, placed in a fume hood, dropped by 30%, within 10...
28 April 2018 6,291 1 View
FTIR spectra were generated for 0.1 M H2SO4 and 0.1 M H2SO4 which had a soaked polymeric membrane. At first, I thought the spectrum of the latter was a mirror image of the former, but that's not...
13 April 2018 4,742 8 View
Especially in a continuous flow mode, for TAN concentration of up to 4000ppm.
26 October 2016 6,985 4 View