FR2058716A5 - Continuous measurement of fluorine and - hydrosable fluorides in the atmosph - Google Patents
Continuous measurement of fluorine and - hydrosable fluorides in the atmosphInfo
- Publication number
- FR2058716A5 FR2058716A5 FR6932285A FR6932285A FR2058716A5 FR 2058716 A5 FR2058716 A5 FR 2058716A5 FR 6932285 A FR6932285 A FR 6932285A FR 6932285 A FR6932285 A FR 6932285A FR 2058716 A5 FR2058716 A5 FR 2058716A5
- Authority
- FR
- France
- Prior art keywords
- electrode
- fluorides
- fluorine
- electrolyte
- gases
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052731 fluorine Inorganic materials 0.000 title abstract 2
- 239000011737 fluorine Substances 0.000 title abstract 2
- 150000002222 fluorine compounds Chemical class 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 abstract 4
- 239000003792 electrolyte Substances 0.000 abstract 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229910052726 zirconium Inorganic materials 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/404—Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid, e.g. Clark-type oxygen sensors
Abstract
A portable measuring device is used. Raw gas containing low concentrations of fluorine or hydrolysable fluorides is pumped over a zirconium electrode moistened with a strong acid containing hydrofluoric acid electrolyte. The electrode is linked to a platinum electrode and potential measuring device and stabilised in the region 0-350 mV. by a Ag/satd. AgI/NaI electrode short circuited to the Zr electrode via a suitable salt bridge. The measurement may be performed in the presence of other contaminant gases e.G. halogens and sulphurous gases. The electrolyte and gases are gravity separated and the electrolyte recirculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6932285A FR2058716A5 (en) | 1969-09-23 | 1969-09-23 | Continuous measurement of fluorine and - hydrosable fluorides in the atmosph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6932285A FR2058716A5 (en) | 1969-09-23 | 1969-09-23 | Continuous measurement of fluorine and - hydrosable fluorides in the atmosph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2058716A5 true FR2058716A5 (en) | 1971-05-28 |
Family
ID=9040453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6932285A Expired FR2058716A5 (en) | 1969-09-23 | 1969-09-23 | Continuous measurement of fluorine and - hydrosable fluorides in the atmosph |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2058716A5 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639769A2 (en) * | 1993-08-20 | 1995-02-22 | Conrex Automation Oy | Use of electrode system, comprising measurement electrode, reference electrode and counterelectrode, in measuring hydrogen peroxide concentration |
-
1969
- 1969-09-23 FR FR6932285A patent/FR2058716A5/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639769A2 (en) * | 1993-08-20 | 1995-02-22 | Conrex Automation Oy | Use of electrode system, comprising measurement electrode, reference electrode and counterelectrode, in measuring hydrogen peroxide concentration |
| EP0639769A3 (en) * | 1993-08-20 | 1996-02-28 | Conrex Automation Oy | Use of electrode system, comprising measurement electrode, reference electrode and counterelectrode, in measuring hydrogen peroxide concentration. |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Rupley | The effect of urea and amides upon water structure1 | |
| Hillson et al. | Aggregation of dye molecules in aqueous solution a polarographic study | |
| IT977396B (en) | STACK OF MEASUREMENTS TO DETERMINE THE CONCENTRATION OF OXYGEN IN GASEOUS MIXTURES | |
| IT1019866B (en) | EQUIPMENT FOR THE DETERMINATION OF THE CONCENTRATION OF HEMOGLOBES NA TOTAL OXYGEN AND RISOTTA CAR BOSSIHEMOGLOBIN OF THE CAPACITY OF THE HEMOGLOBIN FOR THE OXYGEN OF THE SATURATION PER CENTUAL IN OXYGEN AND IN OXIDE OF CARBON IN SOLOIL OR BLOOD | |
| IT1123738B (en) | ELECTROCHEMICAL PROBE OF MEASUREMENT TO DETERMINE THE CONTENT OF OXYGEN IN GAS | |
| IT1043190B (en) | DEVICE AND SEALING PROCEDURE FOR ELECTROLYTIC CELLS CORRESPONDING TO THE PASSAGE OF CONOUTTORS FOR THE ELECTRODES | |
| FR2283865A1 (en) | PROCESS AND ELECTROCHEMICAL CELL FOR REDUCING THE CONCENTRATION OF POLLUTANTS IN AQUEOUS SOLUTIONS | |
| FR2058716A5 (en) | Continuous measurement of fluorine and - hydrosable fluorides in the atmosph | |
| IT997265B (en) | SPECIFIC GAS ANALYZER TO DETERMINE THE CONCENTRATION OF SO 2 | |
| Laitinen et al. | Hydrogen, Rhodium, and Iridium Electrode Potentials in Lithium Chloride-Potassium Chloride Eutectic | |
| IT1028206B (en) | MEASURING CELL FOR DETERMINING THE CONCENTRATION OF OXYGEN IN A GASEOUS MIX | |
| US4021325A (en) | Selective fluoride-sensitive electrode | |
| Stenius et al. | The Properties and Structures of Aqueous Sodium Caprylate Solutions | |
| Zambonin et al. | Voltammetry of Peroxide and Superoxide in Fused Salts | |
| Jiang et al. | A nitrite sodalite-based NO2 gas sensor | |
| Mesaric´ et al. | A polarographic study of lead fluoride complexes and solubility | |
| Treumann et al. | The Simultaneous Evaluation of the Stability Constant for the CdCl+ Ion and the Standard State Potential of the Cell Cd-Hg/CdCl2 (m)/AgCl/Ag at 25° | |
| GB1208533A (en) | Electrochemical apparatus | |
| GB1156915A (en) | Improvements in or relating to the Detection or Determination of Fluorine | |
| IT1024914B (en) | PROCEDURE AND DEVICE FOR ELECTROCHEMICAL PIGENERATION IN CLOSED CIRCUIT OF FINAL PICKLING SOLUTIONS CONTAINING SULFURIC ACID | |
| Kanzaki et al. | The Stability of Peroxide Ions and Superoxide Ions in Fused LiCl-KCl Eutectic | |
| Elworthy | 720. A test of Perrin's relationships for small molecules | |
| Bloksma | An experimental test of Overbeek's treatment of the suspension effect | |
| Stewart et al. | Determination of Carbon Monoxide in the Orsat Gas-Analysis Apparatus with Copper (I) Sulfate-β-Naphthol. | |
| Boyd et al. | The Activity Coefficients of Solutes in Acid Solutions. II. The Relative Activity Coefficients of the Chloride and Silver Ions in Aqueous Sulfuric Acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |