Correlation of Density of Aqueous Solutions of NaOH, KOH, Na2CO3, and K2CO3

1993 ◽  
Vol 58 (9) ◽  
pp. 2059-2068
Author(s):  
Zdeněk Palatý
Keyword(s):  
Aqueous Solutions ◽  
Electrolyte Solution ◽  
Molar Volumes

The paper deals with correlation of density of aqueous solutions of NaOH, KOH, Na2CO3, and K2CO3 using an equation based on the additivity of molar volumes of components, the components being water and so-called basic electrolyte solution with precisely defined and measurable properties. The procedure mentioned has been tested at 20 °C using literature data. The procedure has been shown to give very precise results.

Density estimates of binary aqueous solutions

1983 ◽  
Vol 48 (8) ◽  
pp. 2327-2334
Author(s):  
Otakar Söhnel ◽  
Petr Novotný ◽  
Zdeněk Šolc
Keyword(s):  
Aqueous Solutions ◽  
Molar Volume ◽  
Partial Molar Volume ◽  
Infinite Dilution ◽  
The Other ◽  
Density Estimates ◽  
Molar Volumes ◽  
Solutions Of Electrolytes ◽  
Experimental Values

Two methods are given for assessment of density of binary aqueous solutions of electrolytes; one is based on partial molar volume of the dissolved electrolyte at infinite dilution, and the other is based on additivity of apparent molar volumes at a given concentration. The density estimates of aqueous solutions by means of the two methods are compared with experimental values for some electrolytes of the type 1-1 to 4 and 2-2. In all cases the estimates agree with experimental densities up to concentrations of the saturated solutions.

Polypyrrole Actuator Operating Characteristicsin Electrolyte Solution Mixed with Methanol

2013 ◽  
Vol 300-301 ◽  
pp. 1352-1355 ◽  
Author(s):  
Futo Tsumuji ◽  
Daiki Hoshino ◽  
Shou Ogihara ◽  
Zong Fan Duan ◽  
Yutaro Suzuki ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Electrolyte Solution ◽  
Marked Improvement ◽  
Electrolyte Solutions ◽  
Rapid Decrease ◽  
The Other ◽  
Other Hand ◽  
Deformation Behaviors

In this work, a PPy actuator was fabricated by galvanostatic electropolymerization. The electrochemical deformation behaviors of the PPy actuator were investigated in aqueous solutions of an electrolyte, lithium bis(trifluoromethanesulphonyl)imide (LiTFSI), containing different concentrations of methanol. Marked improvement of the actuating strain of approximately 9% was achieved when the actuator was driven by a potential between –1 and 1 V in the LiTFSI electrolyte containing 40 to 50% of methanol under a load stress of 0. 3 MPa. On the other hand, the actuator functioned in the electrolyte solutions containing more than 60% of methanol showed rapid decrease of the actuating strain and the electrochemical creep after repeated actuations. Possible mechanisms for these behaviors were discussed.

Sign in / Sign up

Export Citation Format

Share Document