𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the kinetics between CO2 and alkanolamines both in aqueous and non-aqueous solutions—II. Tertiary amines

✍ Scribed by G.F. Versteeg; W.P.M. van Swaaij

Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
476 KB
Volume
43
Category
Article
ISSN
0009-2509

No coin nor oath required. For personal study only.

✦ Synopsis

The reaction between COz and tertiary alkanolamines (MDEA, DMMEA, TREA) has been studied in aqueous solutions at various temperatures. Also the absorption of CO1 in a solution of MDEA in ethanol has been studied. Reaction kinetics have been established by chemically enhanced mass transfer of COz into the various solutions. The experiments were performed in a stirred vessel with a horizontal interface which appeared to the eye to be completely smooth. The reaction of CO2 with tertiary amines can be described satisfactorily with the base-catalysis mechanism proposed by Donaldson and Nguyen (1980). Also attention has been paid to the influence of reversibility and small amounts of impurities (primary and secondary amines) on the measured mass transfer rate. For the reaction rate constant, kz. of the reaction between carbon dioxide and tertiary amines exists a Br@nsted relation. There is a linear relation between the logarithm of k2 and pK, at 293 K.

📜 SIMILAR VOLUMES

Kinetic and mechanistic studies on the c
Kinetic and mechanistic studies on the complexation and anation of dioxotetracyanomolybdate (IV) with 2,2′-bipyridyl in aqueous solution
✍ S. I. Ali; Zakir Murtaza; Zaheer Khan 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 392 KB 👁 2 views

Dioxotetracyanomolybdate( IV) has been found to form a 1 2 complex with 2,2'-bipyridyl The kinetics of the reaction has been studied over the pH range 5 3-8.7 by visible spectrophotometry under pseudo conditions The effect of the 2,2'-bipyridyl and dioxotetracyanomolyb-date1 IV). temperature, ionic

Solvent effects on kinetics of the react
Solvent effects on kinetics of the reaction between 2-chloro-3,5-dinitropyridine and aniline in aqueous and alcoholic solutions of [bmim]BF4
✍ Ali Reza Harifi-Mood; Aziz Habibi-Yangjeh; Mohammad Reza Gholami 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 156 KB 👁 2 views

## Abstract Rate constants, __k__~A~, for the aromatic nucleophilic substitution reaction of 2‐chloro‐3,5‐dinitropyridine with aniline were determined in different compositions of 1‐(1‐butyl)‐3‐methylimidazolium terafluoroborate ([bmim]BF~4~) mixed with water, methanol, and ethanol at 25°C. The obt

The Correlation between the Swelling Tra
The Correlation between the Swelling Transition and the Hydrophobicity on Poly(2-hydroxyethyl methacrylate) Hydrogel Surface in Aqueous Urea Solutions
✍ Seung Koo Kang; Juno Hwan Yang; Yong Kiel Sung; Mu Shik Jhon 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 338 KB

The degree of swelling of poly(2-hydroxyethyl methacrylate) (PHEMA) is substantially increased in aqueous urea solutions relative to that in aqueous solution. In particular, the swelling of PHEMA hydrogel is markedly increased in the concentration ranges 3-4 \(M\) urea, 2-3 \(M\) methylurea, 1.5-2 \