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Single Junction Mercury Sulfate Reference Electrode

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SPECIAL SHIPPING DETAILS: Please note that reference electrodes always ship separately.  Special shipping arrangements may be required to process your order if you purchase a reference electrode.

HAZARDOUS MATERIALS: Additional fees may be applied to cover the costs of shipping the single junction mercury sulfate reference electrode.  This electrode also may not be available for sale in all countries.

The standard single junction mercury sulfate (Hg/Hg2SO4) reference electrode is filled with saturated K2SO4 solution.  The reference electrode fits through the standard 14/20 ground glass joints found on our standard electrochemical cells.  A PTFE sleeve (included) facilitates mounting the reference electrode in the joint.

See "Description" tab below for additional precautions and information.  Pine Research recommends using alternative reference electrodes.  This electrode, while free of chloride, is difficult to use and maintain relative to Ag/AgCl.  Consider use of Ag/AgCl with a salt bridge when trying to avoid chloride contamination in the cell.

To view pricing or purchasing options in your country, please register or login to your account.

# Description Price in USD
Reference Electrode
RREF0025

Single Junction Mercury Sulfate (Hg/Hg2SO4) Reference Electrode
includes 14/20 PTFE adapter, storage bottle, bottle of filling solution

WARNING:  Do not use in the presence of Cl- ion.  Doing so will permanently and irreversibly damage this reference electrode!

Optional Accessories
RRPG331

Standard Size Reference Electrode Storage Vessel
125 mL flask with 14/20 taper glass joint

reference electrodes sold separately

RRPG097

Fritted Glass Isolation Tube
for additional isolation of the reference electrode from the main test solution

ACEP1420R12

PTFE Mount for Fritted Tube
slides around fritted tube, fits into a 14/20 port

AKTUBE1420

Reference Electrode Salt Bridge Kit
for superior diffusional isolation of the reference electrode from the main test solution

THCLIP

Alligator Clip, fits Banana Plug
slides on to banana cable plug to allow clip connection to pin on end of reference electrode

ACBPCWBB

Shielded Coax Cable, male BNC to Single Banana Plug
for discontinued CBP bipotentiostat, BNC male fits reference connection on front panel of CBP

SPECIAL SHIPPING DETAILS: Please note that reference electrodes always ship separately.  Special shipping arrangements may be required to process your order if you purchase a reference electrode.

HAZARDOUS MATERIALS: Additional fees may be applied to cover the costs of shipping the single junction mercury sulfate reference electrode.  This electrode also may not be available for sale in all countries.

MERCURY DISCLOSURE: To function properly, this electrode necessarily contains a small amount of mercury.  The maximum amount of mercury in this electrode is 0.3 grams.  See SDS Forms tab for safety information.

Avoid using this reference electrode with the following: chloride ion, perchlorates, and non-aqueous/organic solvents

The standard single junction mercury sulfate (Hg/Hg2SO4) reference electrode is filled with saturated K2SO4 solution.  The reference electrode fits through the standard 14/20 ground glass joints found on our standard electrochemical cells.  A PTFE sleeve (included) facilitates mounting the reference electrode in the joint.

The junction at the lower end of the reference electrode is a ceramic frit that should be kept wet at all times.  If frit dries out, soak overnight in distilled water.  More information about care, storage, and usage can be found in the product information sheet, which you can download from the Documentation tab.

A small vial containing saturated K2SO4 electrode filling solution is included with the single junction mercury sulfate reference electrode.

View SDS Forms for reference electrodes and electrolyte filling solutions.

Visit our YouTube channel for helpful instructional videos regarding the use and maintenance of this and many other Pine Research products!

All specifications are subject to change without notice.
Single Junction Mercury Sulfate Reference Electrode

Standard Potential

0.650 V vs. NHE

Filling Solution

Saturated K2SO4

Document # Title

DRP10028

Single Junction Mercury Sulfate Reference Electrode Product Information
click here to download (335 KB download)

Material Link

Mercury

click here to download (129 KB download)

Mercury (I) sulfate

click here to download (65 KB download)

Saturated potassium sulfate

click here to download (368 KB download)

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