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PH measurement under pressure and at high temperatures; Mesure du pH sous pression et a temperature elevee

Abstract

In the first part the development and operation of a glass electrode under pressure at room temperature is described. The pressure equilibrium between the inside and outside of the glass membrane several centimetres thick is obtained instantaneously by means of a siphon. The use of a silicone oil as electrical insulator makes possible the working of the glass electrode with the siphon at high pressures (100 kg/cm{sup 2}). In the second part, we determined the pH of various buffer solutions up to 250 deg. C using a cell of our design having two hydrogen electrodes. The values thus obtained for the buffer solutions make it possible to verify and calibrate the pH electrodes independently of the oxido-reduction potential of the medium. In the third part we give the results obtained up to 200 deg. C with the glass electrodes developed in conjunction with the Societe St Gobain. (author) [French] Dans une premiere partie, nous exposons la mise au point et le fonctionnement d'une electrode en verre sous pression a la temperature ordinaire. L'equilibrage instantane de la pression a l'interieur et a l'exterieur de la membrane en verre de quelques diziemes de millimetres d'epaisseur s'effectue par l'intermediaire d'un siphon. L'emploi d'une  More>>
Authors:
Fournie, R; [1]  Le Peintre, M; Mahieu, C [2] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
  2. Centre National de la Recherche Scientifique (CNRS), 91 - Gif-sur-Yvette (France)
Publication Date:
Jul 01, 1961
Product Type:
Technical Report
Report Number:
CEA-R-1951
Resource Relation:
Other Information: 24 refs
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 36 MATERIALS SCIENCE; AQUEOUS SOLUTIONS; BUFFERS; CALIBRATION; ELECTRIC POTENTIAL; ELECTRODES; GLASS; HEAT RESISTANT MATERIALS; INSULATING OILS; PERFORMANCE TESTING; PERMITTIVITY; PH VALUE; PRESSURE RANGE MEGA PA 10-100; SPECIFICATIONS; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; THERMODYNAMIC ACTIVITY
OSTI ID:
20972225
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1951001545
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
12 pages
Announcement Date:
Jan 17, 2008

Citation Formats

Fournie, R, Le Peintre, M, and Mahieu, C. PH measurement under pressure and at high temperatures; Mesure du pH sous pression et a temperature elevee. France: N. p., 1961. Web.
Fournie, R, Le Peintre, M, & Mahieu, C. PH measurement under pressure and at high temperatures; Mesure du pH sous pression et a temperature elevee. France.
Fournie, R, Le Peintre, M, and Mahieu, C. 1961. "PH measurement under pressure and at high temperatures; Mesure du pH sous pression et a temperature elevee." France.
@misc{etde_20972225,
title = {PH measurement under pressure and at high temperatures; Mesure du pH sous pression et a temperature elevee}
author = {Fournie, R, Le Peintre, M, and Mahieu, C}
abstractNote = {In the first part the development and operation of a glass electrode under pressure at room temperature is described. The pressure equilibrium between the inside and outside of the glass membrane several centimetres thick is obtained instantaneously by means of a siphon. The use of a silicone oil as electrical insulator makes possible the working of the glass electrode with the siphon at high pressures (100 kg/cm{sup 2}). In the second part, we determined the pH of various buffer solutions up to 250 deg. C using a cell of our design having two hydrogen electrodes. The values thus obtained for the buffer solutions make it possible to verify and calibrate the pH electrodes independently of the oxido-reduction potential of the medium. In the third part we give the results obtained up to 200 deg. C with the glass electrodes developed in conjunction with the Societe St Gobain. (author) [French] Dans une premiere partie, nous exposons la mise au point et le fonctionnement d'une electrode en verre sous pression a la temperature ordinaire. L'equilibrage instantane de la pression a l'interieur et a l'exterieur de la membrane en verre de quelques diziemes de millimetres d'epaisseur s'effectue par l'intermediaire d'un siphon. L'emploi d'une huile de silicone comme isolant electrique a permis le fonctionnement de l'electrode en verre a siphon sous haute pression (1000 kg/cm{sup 2}). Dans une deuxieme partie, nous avons determine jusqu'a 250 deg. C les valeurs du pH des diverses solutions tampons avec une cellule de notre conception a deux electrodes d'hydrogene. Les valeurs des solutions tampons ainsi obtenues permettent de verifier et d'etalonner les electrodes a pH independantes du potentiel d'oxydo-reduction du milieu. Dans une troisieme partie, nous relatons les resultats obtenus jusqu'a 200 deg. C avec les electrodes en verre mis au point en collaboration avec la Societe Saint-Gobain. (auteur)}
place = {France}
year = {1961}
month = {Jul}
}