Unitrode

Unitrode
Beställningsnummer: 6.0259.100

Combined pH electrode for pH titrations. This electrode is particularly suitable:

  • for pH titrations in difficult, viscous, or alkaline samples
  • at elevated temperatures

The fixed ground-joint diaphragm is insensitive to contamination.

Reference electrolyte: c(KCl) = 3 mol/L, storage in storage solution.
Alternatively: reference electrolyte for measurements at T>80°C: Idrolyte, storage in Idrolyte.

  • Tekniska specifikationer
  • Dokument
  • Applikationer
  • Ingående delar och tillbehör
  • Alternativ
Diaphragm Fixed ground-joint diaphragm
Electrode plug-in head Metrohm plug-in head G
Electrode slope > 0.97
Electrode zero point (mV) ± 15
Electrolyte flow rate (μl/h) 3...30
Indicator electrode shape Cylinder
Max. installation length (mm) 113
Measuring range 0 ... 14
Measuring unit pH
Membrane glass type U
Membrane resistance 150 ... 500
Min. immersion depth (mm) 25
pH range 0...14
Reference electrolyte type c(KCl) = 3 mol/L
Reference system LL system
Resistance (kOhm) 5
SGJ sleeve Flexible SGJ sleeve
Shaft diameter bottom (mm) 12
Shaft diameter top (mm) 12
Shaft material Glass
Temperature range, long-term (°C) 0 ... 80
Temperature range, short-term (°C) 0 ... 100

Ladda ner hela leveransomfattningen och extra tillbehör som PDF

  • Sleeve with SGJ 14/12 mm
    6.1236.050
    Sleeve with SGJ 14/12 mm
    Sleeve with SGJ 14/12 mm, polyethylene.

    1 piece(s)

  • 
            
    Storage vessel
            
     
    6.2008.040
    Storage vessel  


    Together with 6.2008.050 storage vessel holder provides a support for the electrode on 6.3032.XXX dosing units.


    1 piece(s)

Ladda ner hela leveransomfattningen och extra tillbehör som PDF

  • Electrode cable / 1 m / F
    6.2104.020
    Electrode cable / 1 m / F
    For connecting electrodes with Metrohm plug-in head G to Metrohm instruments (socket F).
  • Electrode Cable 2 m / F
    6.2104.030
    Electrode Cable 2 m / F
    For connecting electrodes with Metrohm plug-in head G to Metrohm instruments (socket F).
  • Electrolyte  3 mol/L KCl (250 mL)
    6.2308.020
    Electrolyte 3 mol/L KCl (250 mL)
    Electrolyte solution c(KCl) = 3 mol/L, (for Ag/AgCl reference systems)
  • Idrolyte (250 mL)
    6.2308.040
    Idrolyte (250 mL)
    Idrolyte (for 6.0224.100 Electrode and Unitrode at T >80°C)
  • Storage solution
    6.2323.000
    Storage solution
    Storage solution for all combined pH glass electrodes with reference electrolyte c(KCl) = 3 mol/L
  • pHit kit
    6.2325.000
    pHit kit

    Maintenance kit for pH electrodes

    The kit contains:

    • 50 mL cleaning solution
    • 50 mL 3M KCl solution
    • 50 mL storage solution
    • 2 Storage vessels
    • Instructions for use
  • Cleaning solution 3 x 50 mL
    6.2325.100
    Cleaning solution 3 x 50 mL

    Reliable measuring results over long periods of time can be guaranteed only if the pH glass membrane and the diaphragm receive preventive and regular care. Cleaning by etching with toxic chemicals or applying mechanical treatment to the diaphragm is not only complicated and expensive, it also accelerates the ageing of the pH glass electrode.
    The cleaning solution was developed for easy and gentle cleaning of pH glass electrodes. Regular use can considerably prolong their service life.

    This cleaning solution is also part of the pHit kit.