The Vapor Pressure of Water and Aqueous Solutions of Sodium Chloride, Potassium Chloride, and Sugar

Krauskopf, Francis C.

doi:10.1021/j150114a001

Cited by 4 publications

(2 citation statements)

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“…Walker and Ernst (9) and Wexler(lO) have utilized this method for calibrating and checking the accuracy of precision humidity generators. It has also been used extensively in investigations of the vapor pressures of liquids and solutions, particularly salt solutions (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24) An experimental set-up for making a moisture determination with the gravimetric method is shown in Figure 1. Air of constant water vapor content is produced by a humidity generator and a sample withdrawn through an absorption train, saturator and laboratory wet gas meter, etc.…”

Section: Primary Standardmentioning

confidence: 99%

Letter Circular 1026:

1957

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This paper reviews the art of testing and calibrating hygrometers. It describes and discusses instruments which may serve as primary and secondary standards. The use of precision humidity generators for producing atmospheres of known humidity is outlined. The methods and techniques of obtaining fixed humidity points are given. Recommendations are made concerning further research to insure consistency and accuracy in hygrometric measurements. CONTENTS 1. GENERAL INTRODUCTION 2. HYGROMETER STANDARDS 2.1 Primary Standard 2.2 Secondary Standards 3-PRECISION HUMIDITY GENERATORS 3*1 Pressure Humidity Apparatus 3.2 Two-Temperature Humidity Apparatus 3.3 Divided Flow Humidity Apparatus 3-4 Apparatus Employing Combined Principles 4.

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Section: Primary Standardmentioning

confidence: 99%

Letter Circular 1026:

1957

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“…Vapor pressure of 1,2-propanediol by the air-saturation method For these measurements, an apparatus similar to that devised by Krauskopf (14) was constructed. Air dried by .calcium chloride and phosphorus pentoxide was saturated with 1,2-propanediol vapor by passage through a series of vessels wherein intimate contact between the gas and liquid phases at 25°C.…”

Section: Experimental Measurementsmentioning

confidence: 99%