Investigation of Synthesis of Sodium Aminodiborane in One Step and Its Reaction Kinetics

PDF
Full Text
Meryem Sena Akkus, Goksel Ozkan

Abstract


In this study, sodium aminodiborane (NaNH2(BH3)2) synthesis was carried out in a constant volume batch reactor with a single feed at various temperatures and inlet molar ratios. It was synthesized, ammonia borane and sodium hydride as precursors, by a wet chemical reaction method using tetrahydrofuran which is a solvent under atmospheric pressure. These experiments were carried out at varied temperature ranges from 0 °C to 24 °C, and varied inlet molar ratios (AB/NaH) from 0.75 to 1.25. Sodium amidoborane is synthesized when the experiment is carried out in a stoichiometric ratio, but sodium aminodiborane is synthesized when the mole of ammonia borane is higher than the mole of sodium hydride. In order to characterize the products, FTIR, XRD, GC-MS/MS, and quantitative analysis techniques were utilized. In addition, sodium aminodiborane’s synthesis reaction kinetic was determined. r apparent = 0.8594 e ^ (- 4366 / RT) C AB ^ (0.8) C NaH ^ (0.2). The apparent activation energy, Ea, and frequency constant, k0, were calculated about 4366 J/mol and 0.8594 h-1, respectively




DOI: http://dx.doi.org/10.20884/1.jm.2020.15.3.681

Metric logoArticle Metrics


This article has been viewed: 238 (times)
PDF file viewed / downloaded: 145 (times)

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Molekul

Logo Unsoed

Molekul

Jurnal Ilmiah Kimia
Department of Chemistry, Faculty of Mathematics and Natural Sciences,
Universitas Jenderal Soedirman, Purwokerto, Indonesia

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.