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  • Reference electrode XR42

Reference electrode XR42

Reference electrode XR42
Description
pH measurements with separate electrodes require the use of a measurement electrode and a reference electrode. The latter will retain a constant, stable potential during the measurements.

- Calomel (Hg/Hg2Cl2) reference electrode, usually called an SCE (Saturated Calomel Electrode).
- Reference element protected in a PVC housing for greater solidity
- For use in the laboratory and in the field.
- PVC housing

The XR42 electrode comprises a glass tube in which a drop of mercury and mercury chloride (calomel) are placed in contact with a platinum wire. The reference element is filled with a saturated KCl solution (KCl 3 mol/L).

- Porous ceramic junction which allows the reference electrolyte to "sweat".

- High stability over time and low temperature coefficient.
This is ideal for many applications except for those where the chloride ions might react with a compound present in the solution, as is the case with Ag+ ions with which the chloride ions form a precipitate, AgCl. In such cases, a mercurous sulphate reference electrode should be used.

The choice of the reference electrode depends above all on the experimental conditions for your measurements.

This reference electrode should be used with a measurement electrode (BV41A/H or XV41) for correct pH measurement.

- Versions with various connection technologies are available for adaptation to all your instruments.  

For further technical details, please read the sales brochure on the electrodes and/or contact us.

Designation
Price
Reference
Quantity
Actions
Elect. Reference XR42 PVC Calomel BA2
Accessories
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XR42-BA2
-
Quotation
Elect. Reference XR42 PVC Calomel BA4
Accessories
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XR42-BA4
-
Quotation
XR42 S7
Accessories
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XR42-S7
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Quotation
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