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Electrical conductivity and solubility of KF in N,N-dimethylformamide up to 125 degrees C

Abstract:
The solubility of potassium fluoride (KF) in dimethylformamide (DMF) and the dielectric constant of the solvent have been determined in the temperature range (25-125) °C by means of electrical conductivity and capacity measurements. The solubility of KF in this aprotic solvent seems to be almost temperature independent (mean value (0.33 ± 0.03) × 10-3 mol·dm-3). The speciation of KF in DMF is also discussed in relation to the concentration dependence of the molar conductance. It is concluded that ion pairs could account for around 50 to 70% of the species and that triple ions could be present in the concentration range studied.
Publication status:
Published

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Publisher copy:
10.1021/je0100241

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author


Journal:
JOURNAL OF CHEMICAL AND ENGINEERING DATA More from this journal
Volume:
46
Issue:
5
Pages:
1300-1304
Publication date:
2001-01-01
DOI:
EISSN:
1520-5134
ISSN:
0021-9568


Language:
English
Pubs id:
pubs:37996
UUID:
uuid:f204f4cb-0f43-46e5-82d8-ae1ecb41afd5
Local pid:
pubs:37996
Source identifiers:
37996
Deposit date:
2012-12-19
ARK identifier:

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