Quantitative variable-temperature diffuse reflectance infrared Fourier transform spectrometric studies of modified silica gel samples

1986 ◽  
Vol 58 (14) ◽  
pp. 3167-3172 ◽  
Author(s):  
R. S. Shreedhara. Murthy ◽  
J. P. Blitz ◽  
D. E. Leyden
Keyword(s):  
Fourier Transform ◽  
Silica Gel ◽  
Diffuse Reflectance ◽  
Variable Temperature ◽  
Modified Silica ◽  
Modified Silica Gel ◽  
Quantitative Variable ◽  
Diffuse Reflectance Infrared

Variable-Temperature Diffuse Reflectance Infrared Studies of Calcium Oxalate Monohydrate

1992 ◽  
Vol 46 (1) ◽  
pp. 93-99 ◽  
Author(s):  
Robert L. White ◽  
Jiu Ai
Keyword(s):  
Mass Spectrometry ◽  
Fourier Transform ◽  
Calcium Oxalate ◽  
Diffuse Reflectance ◽  
Variable Temperature ◽  
Calcium Oxalate Monohydrate ◽  
Quadrupole Mass ◽  
Infrared Studies ◽  
Infrared Spectral ◽  
Diffuse Reflectance Infrared

The thermal degradation of calcium oxalate monohydrate is studied by using diffuse reflectance Fourier transform infrared spectroscopy combined with quadrupole mass spectrometry (DRIFTS/MS). DRIFTS/MS results are correlated with thermogravimetric analyses to verify the thermal properties of samples studied. Infrared spectral evidence for CaC2O4H2O dehydration and infrared spectra for three different CaC2O4 phases are given. In addition, the significance of a band at 1085 cm−1 assigned to CO22− which appears during the decomposition of CaC2O4 to CaCO3 is discussed.

Synthesis Process and Structure of Al/Mg Modified Silica-gel Particle.

2000 ◽  
Vol 116 (1) ◽  
pp. 56-61
Author(s):  
Tatsuo YAMAGUCHI ◽  
Toshiaki NAKAI ◽  
Kunihiko TAKEDA
Keyword(s):  
Silica Gel ◽  
Synthesis Process ◽  
Modified Silica ◽  
Modified Silica Gel
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