A Sensitive and Versatile Differential Vapor Pressure Apparatus

R. J. Farm; Stanley Bruckenstein

doi:10.1021/ac60267a001

A Sensitive and Versatile Differential Vapor Pressure Apparatus

R. J. Farm
, Stanley Bruckenstein

Chemistry

University of Minnesota Twin Cities
3M

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

A thermistor differential vapor pressure apparatus (vapor pressure osmometer) capable of being used over a wide temperature range is described. Solvent and solution contact only glass and platinum, and the cell is gas tight so that any desired atmosphere can be maintained in the cell. By means of a double water-jacket, the random temperature fluctuations between the solvent and solution thermistors are held to ±1 × 10⁻⁵⁰. At relatively high solute concentrations, >0.01M in suitable solvents, an accuracy of about 0.25% is attainable. In higher vapor pressure solvents, 1% precision is obtained in solutions as dilute as lmM.

Original language	English
Pages (from-to)	1651-1657
Number of pages	7
Journal	Analytical Chemistry
Volume	40
Issue number	11
DOIs	https://doi.org/10.1021/ac60267a001
State	Published - Aug 1 1968

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abstract = "A thermistor differential vapor pressure apparatus (vapor pressure osmometer) capable of being used over a wide temperature range is described. Solvent and solution contact only glass and platinum, and the cell is gas tight so that any desired atmosphere can be maintained in the cell. By means of a double water-jacket, the random temperature fluctuations between the solvent and solution thermistors are held to ±1 × 10−50. At relatively high solute concentrations, >0.01M in suitable solvents, an accuracy of about 0.25\% is attainable. In higher vapor pressure solvents, 1\% precision is obtained in solutions as dilute as lmM.",

author = "Farm, \{R. J.\} and Stanley Bruckenstein",

year = "1968",

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AU - Bruckenstein, Stanley

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N2 - A thermistor differential vapor pressure apparatus (vapor pressure osmometer) capable of being used over a wide temperature range is described. Solvent and solution contact only glass and platinum, and the cell is gas tight so that any desired atmosphere can be maintained in the cell. By means of a double water-jacket, the random temperature fluctuations between the solvent and solution thermistors are held to ±1 × 10−50. At relatively high solute concentrations, >0.01M in suitable solvents, an accuracy of about 0.25% is attainable. In higher vapor pressure solvents, 1% precision is obtained in solutions as dilute as lmM.

AB - A thermistor differential vapor pressure apparatus (vapor pressure osmometer) capable of being used over a wide temperature range is described. Solvent and solution contact only glass and platinum, and the cell is gas tight so that any desired atmosphere can be maintained in the cell. By means of a double water-jacket, the random temperature fluctuations between the solvent and solution thermistors are held to ±1 × 10−50. At relatively high solute concentrations, >0.01M in suitable solvents, an accuracy of about 0.25% is attainable. In higher vapor pressure solvents, 1% precision is obtained in solutions as dilute as lmM.

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U2 - 10.1021/ac60267a001

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JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 11

ER -

A Sensitive and Versatile Differential Vapor Pressure Apparatus

Abstract

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