{"product_id":"double-junction-hg-hgo-reference-electrode-alkaline","title":"Double-Junction Hg\/HgO Reference Electrode, Alkaline","description":"\u003cdiv data-docx-has-block-data=\"true\" data-lark-html-role=\"root\" data-page-id=\"XqWndLliqoSNduxf4HbcO4T8n5i\"\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-B0EWdFQ3DoGazWx8EzPctPMTnpb\"\u003e\u003cstrong\u003eThe Standard Reference for Alkaline Electrochemistry\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KXXcdHpRgo8yFLxuUPZcMc6Tnrq\"\u003eThe FrankLab \u003cstrong\u003eDouble-Junction Hg\/HgO Reference Electrode\u003c\/strong\u003e is designed for \u003cstrong\u003ealkaline electrochemical systems\u003c\/strong\u003e, offering a stable and reliable reference potential in strongly basic electrolytes such as KOH and NaOH. The \u003cstrong\u003edual-junction architecture\u003c\/strong\u003e, coupled with a \u003cstrong\u003ehigh borosilicate glass body\u003c\/strong\u003e, ensures minimal contamination, reduced ionic crossover, and superior potential stability for long-term electrocatalysis and battery research.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-U3lKdFksEoelrCxTX1ScoexSnKc\"\u003eThis electrode is widely used in \u003cstrong\u003eOER, HER, Zn–air\/OH⁻ batteries, alkaline fuel cells, and transition-metal \u003c\/strong\u003e\u003cstrong\u003ecatalyst\u003c\/strong\u003e\u003cstrong\u003e studies\u003c\/strong\u003e.\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-GGyedaZb2o1sabxkfuecWYXpn8b\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-A0FAd6nL2opsuqxqqMOcyWd6nEg\"\u003e\u003cstrong\u003e•Optimized for Alkaline Electrolytes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KZXMd21jkojMwVxDB1TcgEovnRg\"\u003eHg\/HgO reference electrodes provide:\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KhL5dz0aZobn5ExX8kFcbCBBnSc\"\u003e•Highly stable potential in \u003cstrong\u003e1–6 M KOH\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-NDasd66BAoH5zFxRcalc1CWDnwg\"\u003e•Low drift under long-duration alkaline operation\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WJAodkuk5o6cJCxYkp9cxtLrn6o\"\u003e•Better reproducibility vs. Ag\/AgCl in high-pH media\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TIDxdiJU1om8yfxobWccNhfBnWG\"\u003eTypical potential: \u003cstrong\u003e+0.098 V vs. NHE (in 1 M KOH, 25°C)\u003c\/strong\u003e \u003cem\u003e(Adjustable based on KOH concentration)\u003c\/em\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-NEbtdIjuUo0VA3xPOibcCx9onQg\"\u003e\u003cstrong\u003e• Double-Junction Structure for Reduced Contamination\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Y7RjdLyQFoSZhnxfTemchp6Rnge\"\u003eThe intermediate chamber prevents direct contact between the sample electrolyte and internal KOH, offering:\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-DUmBdgRO0orTzpxAykycfSXlnAc\"\u003e•Minimal ion crossover (especially important for catalytic metals)\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-JB7GdW4aAoi3nfxXisFcWgT6nLd\"\u003e•Improved stability in sensitive systems\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Tfcmd7t6NonkscxvaGCcBEAMnkf\"\u003e•Longer electrode lifetime\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-A2YjduqQ4oOCONxjxaQc0I4vnbh\"\u003e•Ability to interface with non-KOH alkaline electrolytes\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TzCpdxE01oPTQFxUG6XcZIeKnAc\"\u003eThis is crucial for studies involving:\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-JspxdMnNCoND3ux9M5qcMVoWnbg\"\u003eNi, Co, Fe oxides, perovskites, spinels, layered hydroxides, etc.\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-L1ftd5Cf5oNFUsxJWxAce47wnwg\"\u003e\u003cstrong\u003e• High Borosilicate Glass Body\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-E3wUdE7lkoMr8yx6y5YcL1zxn2f\"\u003eAll FrankLab glass electrodes use \u003cstrong\u003epremium high borosilicate glass\u003c\/strong\u003e, ensuring:\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Q0PedUHo2orEOKxxnjBcLoMWn2c\"\u003e•Exceptional chemical resistance to strong alkaline electrolytes\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-AXNodjCvVoS8IFxZ5KUcGuNCnwg\"\u003e•High thermal shock resistance\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GCBad7bxDo7T48xny4MciVJ9n6b\"\u003e•Smooth surface minimizing contamination\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-VqLtdHa4JoQO9YxdedqcKJLDnJf\"\u003e•Long-term dimensional and structural stability\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-O9lodGEDSok0WYx5ZLpcW14knq7\"\u003eThis is essential for durability in high-pH environments.\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-AV0ldtLDAomZZ0xD3XYc4bSandb\"\u003e\u003cstrong\u003e• Low Drift, Low Noise, High Reproducibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-BlAddLIAdoijb1xDIklcZhZ8nMe\"\u003e•Stable Hg\/HgO redox couple\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-CVRYdsSalo0gu4xrZZMchGHmnJe\"\u003e•Ideal for OER\/HER kinetic analysis\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-U6UKd2JMRogMaUxRY8kckuIwnIb\"\u003e•Low junction potential\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-J9PVdary7o6yUoxGhydceUacnXf\"\u003e•Reliable baseline for CV \/ LSV \/ EIS\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-EKmzdONI5o3t9JxEu4Dckf6tnSe\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cdiv class=\"old-record-id-FQlFdDBD6oRXPtx9QlNcPltvntf\" data-type=\"sheet\"\u003e\n\u003cmeta http-equiv=\"Content-Type\" content=\"text\/html; charset=utf-8\"\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol width=\"164\"\u003e \u003ccol width=\"288\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eParameter\u003c\/td\u003e\n\u003ctd\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"46\"\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDouble-Junction Hg\/HgO Reference Electrode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eReference System\u003c\/td\u003e\n\u003ctd\u003eHg\/HgO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eInternal Electrolyte\u003c\/td\u003e\n\u003ctd\u003eKOH (various concentrations)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eIntermediate Chamber\u003c\/td\u003e\n\u003ctd\u003eKOH or custom electrolyte\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eReference Potential\u003c\/td\u003e\n\u003ctd\u003e+0.098 V vs. NHE (1 M KOH, 25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eHigh Borosilicate Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eCap Material\u003c\/td\u003e\n\u003ctd\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eJunction\u003c\/td\u003e\n\u003ctd\u003eDual ceramic \/ PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e65–120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e~6–9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e0–50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eStorage Solution\u003c\/td\u003e\n\u003ctd\u003eKOH solution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eLifetime\u003c\/td\u003e\n\u003ctd\u003e6–12 months under proper use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-FRxGdReYJoUpxsx0ucgcibWUnOs\"\u003e\u003cstrong\u003eRecommended Applications\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IeTIdNUCpo3nWvxKaw7cSNXjnCh\"\u003e\n\u003cstrong\u003e•HER \/ OER\u003c\/strong\u003e in alkaline media\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-NHytd7dSFoc48KxOeCHcgXLznRb\"\u003e\u003cstrong\u003e•Nickel-, cobalt-, iron-based catalysts\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WuykdlZcMoY6vDxoyyPc4p5Knpc\"\u003e\u003cstrong\u003e•Zn–air \u0026amp; alkaline battery research\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SF4hd57DgosYTOxww1vc8UbmnVg\"\u003e\u003cstrong\u003e•Alkaline fuel cells \u0026amp; electrolyzers\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WxTZdDspLoFMr2xXDmkcLp6CnIb\"\u003e\u003cstrong\u003e•Transition-metal hydroxide and oxyhydroxide studies\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-IFVldbJ4JoOPYVxi56KcDczBnE7\"\u003e\u003cstrong\u003e•KOH-based ORR \/ redox mechanistic research\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WLUwd6cjCoZP3OxFiQ8ch9hanzh\"\u003eThe Hg\/HgO electrode is considered the \u003cstrong\u003egold standard\u003c\/strong\u003e for alkaline electrocatalysis.\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-Cew1d3QGbo4owSxZ7mOcONavnnd\"\u003e\u003cstrong\u003eCustomization Available (Fully Customizable by FrankLab)\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-KRsqd9Eeao6FWvx7rbWchWdAn4g\"\u003eFrankLab supports full customization to meet unique experimental setups.\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-Nu5edN69SovjBuxgrFrccEgqnQc\"\u003e\u003cstrong\u003eCustomizable Options\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-EC9BdjxvGocJohxwM41cFCT8nzc\"\u003e•Electrode length \u0026amp; body diameter\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-K4IjdGNjIoNJI2xyn19c77JrnGb\"\u003e•Junction type（ceramic \/ PTFE \/ ultra-low-leakage）\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Wsyjd6YQPo3VDGxfMH6ch2w4nxh\"\u003e•KOH concentration inside the electrode（1 M, 3 M, 6 M, custom）\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Xz1Ldt0VMo2G0GxhHOdcxwL3nsg\"\u003e•Intermediate chamber electrolyte（KOH, KNO₃, buffer electrolytes）\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-OgondlsdQoHXgqxYos9ckqPBnzf\"\u003e•Tip geometry for microcells or thin-layer systems\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-XpVAdeNHzoxSr6xphSfcflzvnIh\"\u003e•Bent or angled electrode design（30°–120°）\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-WORcdNpvxowQAGxw5dScflBZnu2\"\u003e•Custom adapters for H-type cells, PEC cells, and flow cells\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-W0cudmVWUobkhaxm8Pkct4TDnvc\"\u003e•Salt-bridge compatibility modules\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-EE2jdfM4Koz44OxNomZcnLf4nSe\"\u003eYou will receive a custom design + quotation \u003cstrong\u003ewithin 24 hours\u003c\/strong\u003e.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-XncUdN0Mco23b0xsNglcfnE8nOb\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-TzdWdSLTloxuLMxBzLScTqLln8A\"\u003e\u003cstrong\u003eFor Custom Orders or Inquiries\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-QcbqdW0sHo3bB4xIaVccZONHnAd\"\u003eIf you have custom requirements or any additional questions, feel free to contact us:\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-NbdwdXHuIocxvPxwPb8cPBswnhh\"\u003e\n\u003cstrong\u003eEmail\u003c\/strong\u003e: support@franklab.shop\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-O9IudJP3QoiD48xrD4RcJk3xnUe\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-NRbAdmZBooYVdbx4aukcneifnDb\"\u003e\u003cstrong\u003eWhy Choose FrankLab?\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-ERPLdbq9xoOxFyxdUG7czUJEnrg\"\u003eFrankLab Focused on \u003cstrong\u003eelectrochemical \u0026amp; research materials\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-DoB9dNF5UoXe7bxDTS2cAnwfnBd\"\u003e•Stable quality for repeatable experiments\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-EJ78dNeAMoCy6ixWn1ycxbxxnMg\"\u003e•Flexible customization capability\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-BDGXdp5Zgo0KiOxydlac4BqBnxb\"\u003e•Trusted by universities, institutes, and industrial R\u0026amp;D labs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Franklab","offers":[{"title":"Ø11mm*75mm","offer_id":44624440360994,"sku":null,"price":95.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/7008\/4386\/files\/Double-Junction-Hg_HgO-Reference-Electrode_Alkaline-1.jpg?v=1773997202","url":"https:\/\/franklab.shop\/products\/double-junction-hg-hgo-reference-electrode-alkaline","provider":"Franklab","version":"1.0","type":"link"}