Thermodynamic Properties of Tetra-n-butylammonium and Tetra-n-butylphosphonium Hydroxycarboxylate Semiclathrate Hydrates

Minamikawa, Kazuhiro; Shimada, Jin; Sugahara, Takeshi et al.

Journal of Chemical and Engineering Data, 2023, 68(12), 3492-3498

Number of Access:58（2025-04-10 00:21 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/93455

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Title
Thermodynamic Properties of Tetra-n-butylammonium and Tetra-n-butylphosphonium Hydroxycarboxylate Semiclathrate Hydrates
Creator
CreatorName
Minamikawa, Kazuhiro
CreatorName
Shimada, Jin
NRID
1000020335384 1000020335384
ORCID
0000-0002-5236-5605 0000-0002-5236-5605
researchmap permalink
read0191169 read0191169
Scopus Author ID
56212469300 56212469300
CreatorName
Sugahara, Takeshi
NRID
1000080208800 1000080208800
researchmap permalink
read0013780 read0013780
Scopus Author ID
7402768651 7402768651
CreatorName
Hirai, Takayuki
Description
Minamikawa K., Shimada J., Sugahara T., et al. Thermodynamic Properties of Tetra-n-butylammonium and Tetra-n-butylphosphonium Hydroxycarboxylate Semiclathrate Hydrates. Journal of Chemical and Engineering Data 68, 3492 (2023); https://doi.org/10.1021/acs.jced.3c00575.
Abstract
Semiclathrate hydrate (SCH) has been expected to be one of the phase change materials suitable for cold energy storage. In the present study, the equilibrium temperature, dissociation enthalpy, and crystal structure of tetra-n-butylammonium(TBA)-Tar, tetra-n-butylphosphonium(TBP)-Tar, and TBA-Mala SCHs were investigated, where the hydroxycarboxylate anions were malate (-Mala) and tartarate (-Tar). The maximum equilibrium temperature of each SCH system at the stoichiometric composition was (279.54 ± 0.05) K for TBA-Tar SCH, (275.44 ± 0.05) K for TBP-Tar SCH, and (278.69 ± 0.05) K for TBP-Mala SCH at atmospheric pressure. Each dissociation enthalpy was (172 ± 3) kJ·kg-1 for TBA-Tar SCH, (161 ± 3) kJ·kg-1 for TBP-Tar SCH, and (172 ± 3) kJ·kg-1 for TBP-Mala SCH. The SCHs with hydroxy group(s) in the anion of onium salts are more environmentally friendly than the SCHs with a halide anion. The environmentally friendly SCHs measured in this study could be used as refrigerants in the logistics of vegetables and fruits because the equilibrium temperature is suitable to preserve their freshness.
Publisher
American Chemical Society
Source Title
Journal of Chemical and Engineering Data
Volume (Issue)
68(12)
Page
3492-3498
Date of Issued
2023-12-14
Language
English
Handle URL
https://hdl.handle.net/11094/93455
PISSN
00219568
eISSN
15205134
Relation.isVersionOf
DOI (Publisher Version)
https://doi.org/10.1021/acs.jced.3c00575
Access Rights
open access
CopyRight
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Chemical and Engineering Data, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jced.3c00575.
oaire:version
Accepted Manuscript
Category
学術雑誌論文 Journal Article