FTIR study of ion solvation and ion-pair formation in alkaline and alkaline earth metal salt solutions in acetonitrile

1994 ◽  
Vol 23 (10) ◽  
pp. 1133-1146 ◽  
Author(s):  
J. Barthel ◽  
R. Deser
Keyword(s):  
Alkaline Earth ◽  
Metal Salt ◽  
Earth Metal ◽  
Ion Pair ◽  
Pair Formation ◽  
Ion Solvation ◽  
Alkaline Earth Metal ◽  
Salt Solutions ◽  
Ftir Study ◽  
Ion Pair Formation

Preparation and Absorbencies of Poly(acrylate-co-Acrylamide) Superabsorbent by Inverse Suspension Polymerization

2011 ◽  
Vol 233-235 ◽  
pp. 1257-1261
Author(s):  
Jian Jun Xie ◽  
Hui Ying Zhang ◽  
Nian Zeng ◽  
De Long Ran
Keyword(s):  
Chemical Structure ◽  
Alkaline Earth ◽  
Metal Salt ◽  
Suspension Polymerization ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Salt Solutions ◽  
Inverse Suspension Polymerization ◽  
Infrared Spectrophotometer ◽  
Thermal Stable

Poly(acrylate-co-acrylamide)(PAAM) superabsorbent was prepared from partly- neutralized acrylic acid(AA) and acrylamide(AM) by inverse suspension polymerization. Its chemical structure and thermal property were characterized by Fourier-transform infrared spectrophotometer(FTIR) and the thermogravimetric analysis(TGA). The effects of various salt solutions on the absorbencies were studied systemically. Under the same ion strengths, the absorbencies of PAAM were in the order LiCl>NaCl>KCl in MCl (M=Li, Na, K) solutions and NaBr>NaCl>NaF in NaX solution, respectiverly. The tendency of absorbency of PAAM for the alkaline earth metal salt solutions was in the order MgCl2>CaCl2>BaCl2. PAAM resin is thermal stable before 320°C.

scholarly journals Hydration and ion pair formation in common aqueous La(iii) salt solutions – a Raman scattering and DFT study

2015 ◽  
Vol 44 (1) ◽  
pp. 295-305 ◽  
Author(s):  
Wolfram W. Rudolph ◽  
Gert Irmer
Keyword(s):  
Raman Spectrum ◽  
Raman Scattering ◽  
Ion Pair ◽  
Pair Formation ◽  
Dft Study ◽  
Salt Solutions ◽  
Left Hand ◽  
Ion Pair Formation ◽  
Right Hand

Left hand side: Raman spectrum of a 0.622 mol L−1La(ClO4)3(aq). Weak, polarized band at 343 cm−1assigned to symmetric La–O stretch of [La(OH2)9]3+. Bands at 463 and 630 cm−1due to ClO4−(aq). The inset shows the isotropic band in more detail. Right hand side: Structure of [La(OH2)9]3+(symmetryD3).

Ion pair formation model for sea salt solutions

AIChE Journal ◽  
1975 ◽  
Vol 21 (3) ◽  
pp. 600-601 ◽  
Author(s):  
Parthasarathi Ray ◽  
Leroy A. Bromley
Keyword(s):  
Ion Pair ◽  
Pair Formation ◽  
Sea Salt ◽  
Formation Model ◽  
Salt Solutions ◽  
Ion Pair Formation
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