scholarly journals Effect of Hofmeister series salts on Absorptivity of aqueous solutions on Sodium polyacrylate

2017 ◽  
Vol 263 ◽  
pp. 022028
Author(s):  
Swathi Korrapati ◽  
Phani Kumar Pullela ◽  
U Vijayalakshmi
Keyword(s):  
Aqueous Solutions ◽  
Hofmeister Series ◽  
Sodium Polyacrylate

scholarly journals Measurement and Prediction of Densities of Ternary Aqueous Mixtures Involving Sodium Polyacrylate

2004 ◽  
Vol 4 (1) ◽  
pp. 64
Author(s):  
Z. A. Noor Fadzlina ◽  
T. T. Teng ◽  
M. Abdul Rahman
Keyword(s):  
Experimental Data ◽  
Aqueous Solutions ◽  
Percentage Error ◽  
Sodium Polyacrylate ◽  
Aqueous Systems ◽  
Aqueous Mixtures ◽  
Density Prediction ◽  
Density Values ◽  
Good Agreement

The densities of the binary aqueous solutions of sodium polyacrylate (NaPM) at 20°C, 25°C, and 300C up to 0.17 m and LiCI at 25°C and 300C up to 3.13 m were measured using a vibrating tube digital densitimeter. The measured experimental data were then fitted to the polynomial d = do + IA;m'. The densities of the ternary aqueous systems NaPM-NaCI, NaPM-LiCI, and NaPM-sucrose were also =1 measured from 20°C to 30°C. The isopycnotic equation, Imi / moi was used to predict the densities of the ternary aqueous systems mentioned. The results show that predicted and observed density values are in good agreement. The overall percentage error of density prediction for the system NaPM-NaCI-H20 is 0.067. For the system NaPM-LiCI-HP,the overall percentage error is 0.074; and, for the system NaPM-sucrose-H20, the overall percentage error is 0.065.

The Interaction of Kaolinite with Polyphosphate and Polyacrylate in Aqueous Solutions—Some Preliminary Results

Clay Minerals ◽  
1970 ◽  
Vol 8 (4) ◽  
pp. 445-459 ◽  
Author(s):  
J. I. Bidwell ◽  
W. B. Jepson ◽  
G. L. Toms
Keyword(s):  
Aqueous Solutions ◽  
Competitive Adsorption ◽  
Sodium Polyacrylate ◽  
Surface Chemical ◽  
Aluminium Phosphate ◽  
Tetrasodium Pyrophosphate ◽  
Preliminary Results ◽  
Total Phosphate ◽  
Chemical Studies ◽  
Positively Charged

AbstractThe choice of kaolinite sample for surface chemical studies is examined. An adsorption apparatus, particularly suited for those studies where the adsorbate acts as a deflocculant, is described. Some preliminary results are given for the adsorption of total phosphate from tetrasodium pyrophosphate solutions and of polyacrylate from sodium polyacrylate solutions. The release of aluminium and silicon from the kaolinite was measured; with tetrasodium pyrophosphate, aluminium-phosphate complexes are formed.Competitive adsorption measurements suggest that the polyacrylate is adsorbed on the positively charged edges of the kaolinite.

Chaleur de dilution de solutions aqueuses d'acide polyacrylique, de son sel de sodium et de l'acide propionique

1971 ◽  
Vol 49 (24) ◽  
pp. 3935-3939 ◽  
Author(s):  
Jean-Pierre Cartier ◽  
Hubert Daoust
Keyword(s):  
Aqueous Solutions ◽  
Propionic Acid ◽  
Polyacrylic Acid ◽  
Sodium Polyacrylate ◽  
Heat Of Dilution ◽  
Concentrated Solutions ◽  
Sodium Salts ◽  
Structure Of Water ◽  
Calvet Microcalorimeter ◽  
Heats Of Dilution

With a Tian–Calvet microcalorimeter, heats of dilution at 25 °C have been measured for aqueous and acid (0.2 N HCl) solutions of polyacrylic acid and of propionic acid, and for aqueous solutions of the sodium salts of polyacrylic acid. The results are interpreted in terms of the change in structure of water resulting from the lengthening of the solute molecule. The heat of dilution of moderately concentrated solutions of sodium polyacrylate can be explained by the theory of Eigen and Wicke.

Synthesis of sodium polyacrylate–bentonite using in situ polymerization for Pb2+ removal from aqueous solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (53) ◽  
pp. 48145-48154 ◽  
Author(s):  
Youjun He ◽  
Meishan Pei ◽  
Ni Xue ◽  
Luyan Wang ◽  
Wenjuan Guo
Keyword(s):  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
In Situ Polymerization ◽  
Sodium Polyacrylate ◽  
First Time

A sodium polyacrylate–bentonite material (PAANa–Bent), as an adsorbent for heavy metal ions, is synthesized for the first time using in situ polymerization.

scholarly journals Salt effects on the picosecond dynamics of lysozyme hydration water investigated by terahertz time-domain spectroscopy and an insight into the Hofmeister series for protein stability and solubility

2016 ◽  
Vol 18 (22) ◽  
pp. 15060-15069 ◽  
Author(s):  
Katsuyoshi Aoki ◽  
Kentaro Shiraki ◽  
Toshiaki Hattori
Keyword(s):  
Aqueous Solutions ◽  
Protein Stability ◽  
Time Domain ◽  
Protein Solubility ◽  
Hydration Water ◽  
Hofmeister Series ◽  
Terahertz Time Domain Spectroscopy ◽  
Salt Effects ◽  
Time Domain Spectroscopy ◽  
Insight Into

The addition of salts into protein aqueous solutions causes changes in protein solubility and stability, the ability of which is known to be ordered in the Hofmeister series.

Preparation and characterization of sodium polyacrylate-grafted bentonite and its performance removing Pb2+ from aqueous solutions

RSC Advances ◽  
2016 ◽  
Vol 6 (101) ◽  
pp. 98945-98951 ◽  
Author(s):  
Ni Xue ◽  
Luyan Wang ◽  
Meishan Pei ◽  
Youjun He ◽  
Yankai Du ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Redox Process ◽  
Sodium Polyacrylate

A new adsorbent, sodium polyacrylate (PAANa) grafted onto the surface of bentonite (Bent), was successfully synthesized by a facile and green Ce(iv)-redox process, to remove Pb2+ from aqueous solutions.

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