Open AccessOptical Properties, Excess Volume Prediction from Refractive Index and Intermolecular Interactions in Dibutylamine + Isomeric Butanol
Author(s) -
Kavitha Kumari,
Sanjeev Maken
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23000
Subject(s) - chemistry , intermolecular force , refractive index , amine gas treating , butanol , alkyl , thermodynamics , molar volume , volume (thermodynamics) , binary number , organic chemistry , ethanol , molecule , physics , arithmetic , mathematics , quantum mechanics
The alkyl or alkanol amines are widely used as absorbent for CO2 capture owing to interaction betweenamines and CO2. In order to increase the CO2 loading in amine based absorbents, blending of aminewith alkanol may be one option. As thermophysical properties of of utmost importance in designing,in present work, the refractive index of dibutylamine (DBA) and isomeric butanol as well as theirbinary mixtures at 298.15 K to 308.15 K were measured. The Δn are found positive for DBA + isomericbutanol mixtures. The Δn values were correlated with Redlich-Kister polynomial. The refractive indexdata were also predicted by various correlations and results were expressed in terms of standarddeviation. The Δn values were also employed to calculate the excess molar volume of the presentbinary mixtures. Further Δn data analysed in terms of intermolecular interaction among DBA (1) +isomeric butanol (2) mixtures.