FR2273277A1 - Dissolved substance concentration determination - by measuring current at anode effect onset during rapid cathode/anode voltage rise - Google Patents

Dissolved substance concentration determination - by measuring current at anode effect onset during rapid cathode/anode voltage rise

Info

Publication number
FR2273277A1
FR2273277A1 FR7516625A FR7516625A FR2273277A1 FR 2273277 A1 FR2273277 A1 FR 2273277A1 FR 7516625 A FR7516625 A FR 7516625A FR 7516625 A FR7516625 A FR 7516625A FR 2273277 A1 FR2273277 A1 FR 2273277A1
Authority
FR
France
Prior art keywords
anode
voltage rise
dissolved substance
measuring current
substance concentration
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.)
Withdrawn
Application number
FR7516625A
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rio Tinto Aluminium Holdings Ltd
Original Assignee
Comalco Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Comalco Ltd filed Critical Comalco Ltd
Publication of FR2273277A1 publication Critical patent/FR2273277A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/20—Automatic control or regulation of cells
    • 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
    • G01N27/416—Systems
    • G01N27/48—Systems using polarography, i.e. measuring changes in current under a slowly-varying voltage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
FR7516625A 1974-05-28 1975-05-28 Dissolved substance concentration determination - by measuring current at anode effect onset during rapid cathode/anode voltage rise Withdrawn FR2273277A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB769074 1974-05-28

Publications (1)

Publication Number Publication Date
FR2273277A1 true FR2273277A1 (en) 1975-12-26

Family

ID=3765922

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516625A Withdrawn FR2273277A1 (en) 1974-05-28 1975-05-28 Dissolved substance concentration determination - by measuring current at anode effect onset during rapid cathode/anode voltage rise

Country Status (5)

Country Link
JP (1) JPS513293A (en:Method)
AU (1) AU8159275A (en:Method)
DE (1) DE2523768A1 (en:Method)
FR (1) FR2273277A1 (en:Method)
NO (1) NO751829L (en:Method)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942280A1 (en) * 1998-03-13 1999-09-15 Eastman Kodak Company Automatic measuring device for the concentration of a developing agent
FR2798467A1 (fr) * 1999-09-13 2001-03-16 Eastman Kodak Co Dispositif de mesure automatique de la concentration d'un agent developpateur
GB2365023A (en) * 2000-07-18 2002-02-13 Ionex Ltd Increasing the surface area of an electrode

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450063A (en) * 1983-09-28 1984-05-22 Reynolds Metals Company Probe for alumina concentration meter

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0942280A1 (en) * 1998-03-13 1999-09-15 Eastman Kodak Company Automatic measuring device for the concentration of a developing agent
FR2776071A1 (fr) * 1998-03-13 1999-09-17 Eastman Kodak Co Dispositif de mesure automatique de la concentration d'un agent developpateur
US6228237B1 (en) 1998-03-13 2001-05-08 Eastman Kodak Company Automatic measuring device for the concentration of a developing agent
FR2798467A1 (fr) * 1999-09-13 2001-03-16 Eastman Kodak Co Dispositif de mesure automatique de la concentration d'un agent developpateur
EP1085321A1 (en) * 1999-09-13 2001-03-21 Eastman Kodak Company Device for the automatic measurement of developing agent concentration
GB2365023A (en) * 2000-07-18 2002-02-13 Ionex Ltd Increasing the surface area of an electrode
GB2365023B (en) * 2000-07-18 2002-08-21 Ionex Ltd A process for improving an electrode
US7341655B2 (en) 2000-07-18 2008-03-11 Ionex Limited Process for improving an electrode

Also Published As

Publication number Publication date
JPS513293A (en:Method) 1976-01-12
AU8159275A (en) 1976-12-02
NO751829L (en:Method) 1975-12-01
DE2523768A1 (de) 1975-12-11

Similar Documents

Publication Publication Date Title
JPS5529940A (en) Method and apparatus for determining activity of microorganism
FR2273277A1 (en) Dissolved substance concentration determination - by measuring current at anode effect onset during rapid cathode/anode voltage rise
DE3274471D1 (en) Precipitation or depositing of particles from a solution
ES308069A1 (es) Procedimiento y aparato para la electrolisis ignea de alumina
GB1501893A (en) Continuous electrolytic colouring of a preanodised aluminium foil or strip
Loucka The reasons for the loss of activity of titanium-ruthenium dioxide anodes in sulphuric acid media
JPS57181390A (en) Measuring method for counter electromotive force of aluminum electrolytic cell
Vertes et al. Oxidation on the nickel hydroxide electrode
US3442779A (en) Anodic protection of metals
Morris The rate of electrode oxide formation during chronopotentiograms at a platinum anode
GB1011177A (en) Improvements in or relating to methods and apparatus for measuring fluoride activity
SU1423627A1 (ru) Способ контрол концентрации глинозема в криолитглиноземном расплаве
Suzuki Analytical Studies Using the Convection Electrode. XI. Cathodic Stripping Voltammetry of Chloride Ions with the Pushed-out Mercury Drop Convection Electrode
JPS5687802A (en) Measuring method for surface area of solid body
Jangg et al. Investigations Into the Pitting Corrosion of Aluminum
SU739330A1 (ru) Способ измерени площади поверхности электропроводного объекта
Delahay Coulostatic Anodic Stripping with a Mercury Electrode.
Azzam et al. Anodic behaviour and passivation of tin in alkaline—stannate plating solutions
Allen The photo-electric fatigue of Zinc
Zhu-xian et al. Studies of Wettability of Carbon Electrodes in Aluminum Electrolysis. Pt. 1
SU1409895A1 (ru) Способ определени склонности нержавеющих сталей к межкристаллитной коррозии
Ferguson et al. STUDIES ON OVERVOLTAGE. IX: The Nature of Cathode and Anode Discharge Potentials at Several Metal Surfaces1, 2
Sinitsyna polonium (10-8 moles/liter) in 0.1 N HNO3. They determined the
SU831884A1 (ru) Способ электрохимическойОбРАбОТКи МиКРОлЕНТы
Shalaevskaya et al. Kinetics of the Dissolution and Diffusion of Metallic Aluminum in Mercury

Legal Events

Date Code Title Description
ST Notification of lapse