Sound attenuation in the critical region of the ionic binary mixture ethylammonium nitrate/n‐octanol

2000 ◽  
Vol 108 (5) ◽  
pp. 2595-2595
Author(s):  
Sirojiddin Z. Mirzaev ◽  
Udo Kaatze
2015 ◽  
Vol 44 (3-4) ◽  
pp. 669-685 ◽  
Author(s):  
Olga Russina ◽  
Alessandro Mariani ◽  
Ruggero Caminiti ◽  
Alessandro Triolo

Symmetry ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1425 ◽  
Author(s):  
Alessandro Mariani ◽  
Matteo Bonomo ◽  
Stefano Passerini

Herein, we report on the theoretical and experimental investigation of the chemical equilibrium in a Ethylammonium Nitrate (EAN)/1,4-Diaminobutane (DAB) binary mixture displaying a significant excess of the latter component (namely, a 1:9 mole ratio). Both the neutral compounds, i.e., ethylamine (EtNH2) and DAB, present very similar chemical properties, especially concerning their basic strength, resulting in a continuous jump of the proton from the ethylammonium to the diamine (and vice-versa). Due to the significant excess of DAB, the proton is (statistically) expected to be bound to one of its nitrogen atoms, leading to the formation of a new (ternary) mixture containing DAB (ca. 80%), ethylamine (ca. 10%) and 4-amino-1-butylammonium nitrate (ABAN, ca. 10%). This is probed by means of SAXS measurements, showing LqE (low q excess) that increases over time. This feature tends to stabilize after approximately one day. When the measurement is repeated after one year, the LqE feature shows an increased intensity. Based on the results of our simulations, we suggest that this phenomenon is likely due to partial ethylamine evaporation, pushing the equilibrium toward the formation of ABAN.


2020 ◽  
Vol 400 ◽  
pp. 123189
Author(s):  
Olushola M. Awoyemi ◽  
Seenivasan Subbiah ◽  
Anahi Velazquez ◽  
Kelsey N. Thompson ◽  
Angela L. Peace ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document