Dialkylimidazolium Chlorides

Wilkes, John S.; Levisky, Joseph A.

doi:10.21236/ada094772

Cited by 7 publications

(9 citation statements)

References 4 publications

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“…We soon found that the chlorides could be made directly in one step. 22 When a dialkylimidazolium chloride salt (1-ethyl-3-methylimidazolium chloride, emimCl, for example) was mixed with aluminium chloride, an ionic liquid was formed that had a freezing point below room temperature for all compositions between 0.33 and 0.67 AlCl 3 mole fraction, as seen in the phase diagram in Fig. 10.…”

Section: The Chloroaluminates-low Temperaturementioning

confidence: 99%

A short history of ionic liquids—from molten salts to neoteric solvents

2002

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Ionic liquids, defined here as salts with melting temperatures below 100 °C, evolved from traditional high temperature molten salts. Some materials we would now recognize as ionic liquids were observed as far back as the mid 19th century. The quest for useful molten salts with lower melting temperatures led to inorganic chloroaluminates, to organic chloroaluminates, then to the water and air stable salts now being developed for green chemistry applications.

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Section: The Chloroaluminates-low Temperaturementioning

confidence: 99%

A short history of ionic liquids—from molten salts to neoteric solvents

2002

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“…Water can react with aluminum chloride in the molten salt system to form HC1 3H20 + A1C13 -3HC1 + Al(OH)3 [3] Al(OH), + A1C1, -3HC1 + Al703 [4] The amount of water needed to generate enough HC1 was considered. Water present in the sodium chloride, the organic chloride, or introduced by absorption from the atmosphere can react with aluminum chloride upon mixing to form Rd.…”

Section: Resultsmentioning

confidence: 99%

Plating and Stripping of Sodium from a Room Temperature 1,2‐Dimethyl‐3‐propylimidazolium Chloride Melt

Gray

Winnick

Kohl

1996

J. Electrochem. Soc.

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Room temperature molten salts consisting of 1,2-dimethyl-3-propylimidazolium chloride and aluminum chloride have been examined as possible electrolytes for a room temperature design of the sodium/iron(II) chloride battery This work examines the conditions which provide the most efficient reduction and oxidation of sodium from a sodium chloride buffered, neutral melt. Most work was performed on a tungsten substrate using cyclic voltammetry. Melts were treated with gaseous HC1 using a closed electrochemical cell which allowed for quantification of the effect of HC1 on the electrochemical behavior of sodium in the molten salt. The HCI threshold partial pressure was less than 1 kPa for sodium plating. This result was complicated by the slow equilibrium between gaseous HC1 and that dissolved in the molten salt; the effect of HC1 addition was found to last for months, demonstrating the slow equilibrium. Small amounts of water contamination were found to produce a similar effect. At elevated temperatures the melt had higher conductivity, an order of magnitude higher current densities, and higher coulombic efficiency. ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 137.222.24.34 Downloaded on 2015-03-16 to IP ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 137.222.24.34 Downloaded on 2015-03-16 to IP

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“…Sample preparation.--The 1-methyl-3-ethylimidazolium chloride, MEIC1, and its binary mixtures with A1C13 were prepared as described elsewhere (8) The charge transporting ions will move when an electric current is passed across the boundary. The direction of electron flow is indicated by the arrow at the top of Fig.…”

Section: Methodsmentioning

confidence: 99%

Transport Numbers in Molten Aluminum Chloride‐1‐Methyl‐3‐Ethylimidazolium Chloride Mixtures

Dymek

King

1985

J. Electrochem. Soc.

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The transport numbers of 1‐methyl‐3‐ethylimidazolium (MEI+), AlCl4− , and Cl− ions were measured in equimolar and AlCl3‐normalpoor melts of AlCl3 and 1‐methyl‐3‐ethylimidazolium chloride (MEICl). The moving boundary method and a modified Hittorf method were used. The external transport numbers of the three ions in the equimolar melt were 0.70±0.02 , 0.30±0.02 , and 0, respectively. As AlCl3 mole fraction decreases, the transport number for AlCl4− decreases, while that for Cl+ increases and that for MEI+ remains the same. The internal transport number of the MEI+ relative to Cl as the reference is 1.00±0.02 .

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Dialkylimidazolium Chlorides

Cited by 7 publications

References 4 publications

A short history of ionic liquids—from molten salts to neoteric solvents

A short history of ionic liquids—from molten salts to neoteric solvents

Plating and Stripping of Sodium from a Room Temperature 1,2‐Dimethyl‐3‐propylimidazolium Chloride Melt

Transport Numbers in Molten Aluminum Chloride‐1‐Methyl‐3‐Ethylimidazolium Chloride Mixtures

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