{"product_id":"copper-sulfate-reference-electrode","title":"Copper Sulfate Reference Electrode","description":"\u003cdiv data-page-id=\"NH5QdVUYXokccjxCrrEcEAeVnwb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\"\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-Ww31d6FwYoxYIExuiXOcq3A1nZe\"\u003eThe FrankLab \u003cstrong\u003eCopper Sulfate\u003c\/strong\u003e\u003cstrong\u003e Reference Electrode (Cu\/CuSO₄)\u003c\/strong\u003e is a widely used reference system in \u003cstrong\u003ecorrosion studies, concrete\/steel structure monitoring, soil electrochemistry, environmental testing\u003c\/strong\u003e, and field-based measurements. It provides a \u003cstrong\u003estable, reproducible potential\u003c\/strong\u003e, excellent durability, and strong ionic stability in sulfate-based environments.\u003c\/div\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-GZazdwECboPqsrx4uy0cd0X4nxd\"\u003eConstructed with \u003cstrong\u003ehigh borosilicate glass\u003c\/strong\u003e, a pure copper internal element, and saturated CuSO₄ electrolyte, this electrode is designed for both \u003cstrong\u003elaboratory and field use\u003c\/strong\u003e, offering reliable performance over extended periods.\u003c\/div\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-APlfdwvYLofEqNxsNjzcit7rntc\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-Ik2adGwotooZNSx0v3ec2JZXneh\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-X3fndhzmHoFzk6xw5RFc8aFBn7d\"\u003e\u003cstrong\u003e• Stable \u0026amp; Well-Defined Reference Potential\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-T6MCdhGcgoaFuVxqXY3cYsLcnYe\"\u003eThe Cu\/CuSO₄ redox couple provides:\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-X3fndhzmHoFzk6xw5RFc8aFBn7d\"\u003e\n\u003cstrong\u003e• \u003c\/strong\u003eHighly stable potential\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-X3fndhzmHoFzk6xw5RFc8aFBn7d\"\u003e\n\u003cstrong\u003e• \u003c\/strong\u003eExcellent reproducibility in soil and corrosion systems\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-X3fndhzmHoFzk6xw5RFc8aFBn7d\"\u003e\n\u003cstrong\u003e• \u003c\/strong\u003eLong-term performance in field or laboratory environments\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-URNFduMeMoQL2rx5d9fcE8jfn8f\"\u003eTypical potential (25°C): \u003cstrong\u003e+0.316 V vs. NHE\u003c\/strong\u003e (in saturated CuSO₄ solution)\u003c\/div\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-X7bgd73WrohcgzxCHaTcjZq4nJm\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\u003cstrong\u003e• High Borosilicate Glass Body\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-MVTRdhFXOoKlCHxLGjqc3D41nzc\"\u003eFrankLab electrodes use \u003cstrong\u003epremium high borosilicate glass\u003c\/strong\u003e, offering:\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003eHigh chemical stability in sulfate electrolytes.\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003eExcellent resistance to temperature fluctuation.\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003eSmooth surfaces that reduce contamination\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv data-page-id=\"NH5QdVUYXokccjxCrrEcEAeVnwb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003eLong-term mechanical durability\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv data-page-id=\"NH5QdVUYXokccjxCrrEcEAeVnwb\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-WwOQdIzdaoMlKhx3OgOcfedInqb\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CzW1drbzCofu9Bx4TtPc9RKynTh\"\u003e\n\u003cstrong\u003e• Corrosion \u0026amp; \u003c\/strong\u003e\u003cstrong\u003eEnvironmental\u003c\/strong\u003e\u003cstrong\u003e Applications\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-PfZjdaIZNoPSihxAeGbchAa7nOd\"\u003eIdeal for:\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003e\u003cb\u003eSteel rebar corrosion monitoring (reinforced concrete)\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003e\u003cb\u003ePipeline and underground structure testing\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003e\u003cb\u003eSoil electrochemistry\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003e\u003cb\u003eCathodic protection systems\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CBSjdRqX6oti1ox9ohEcwb7fnOg\"\u003e\n\u003cstrong\u003e•\u003c\/strong\u003e\u003cb\u003eGeneral corrosion analysis in sulfate media\u003c\/b\u003e\n\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-YxHNdVfEOoeZuxxkBKScsunynjp\"\u003eThis electrode is frequently used in civil engineering, geochemistry, and corrosion R\u0026amp;D.\u003c\/div\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-KyURd98sIoUYYTxO9WpcHYOhnQT\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-Pgu9dvdZCo72c8xI2uTcu1tLn7f\"\u003e\u003cstrong\u003e• Low-Leakage Porous Junction\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-C5nldPBAaoXOWDxZYKvcr4Q5nPc\"\u003eAvailable porous materials:\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-Pgu9dvdZCo72c8xI2uTcu1tLn7f\"\u003e\n\u003cstrong\u003e• \u003c\/strong\u003ePorous glass\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-Pgu9dvdZCo72c8xI2uTcu1tLn7f\"\u003e\n\u003cstrong\u003e• \u003c\/strong\u003eCeramic junction\u003c\/h3\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-Pgu9dvdZCo72c8xI2uTcu1tLn7f\"\u003e\n\u003cstrong\u003e• \u003c\/strong\u003ePTFE low-leak variants\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-SSzKdorwAoQdefx15dlc1dt9nZc\"\u003eBenefits:\u003c\/div\u003e\n\u003cul start=\"1\" class=\"list-bullet1\"\u003e\n\u003cli class=\"ace-line ace-line old-record-id-HH7Zd4PKIoQg9KxAIOVcTkYtnwb\" data-list=\"bullet\"\u003e\n\u003cdiv\u003eStable ionic contact\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"ace-line ace-line old-record-id-NutadhvMFoAQK2xsZi3cQjJQnYe\" data-list=\"bullet\"\u003e\n\u003cdiv\u003eReduced contamination into soil or liquid media\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"ace-line ace-line old-record-id-DXFTdPh6joLD38x6jBrcD7cEnYb\" data-list=\"bullet\"\u003e\n\u003cdiv\u003eLong-term stability in high-resistance environments\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-UsbvdoL1roy3KJxdOrccVNktnby\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-Od32d4ZNfoXPhxxik71cdNrCnOc\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cdiv data-type=\"sheet\" class=\"old-record-id-EbvGdvBVqoC3ztxIW7gcbrcsnRd\"\u003e\n\u003cmeta http-equiv=\"Content-Type\" content=\"text\/html; charset=utf-8\"\u003e\n\u003ctable\u003e\n\u003ccolgroup\u003e \u003ccol width=\"153\"\u003e \u003ccol width=\"316\"\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=\"27\"\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eCu\/CuSO₄ Reference Electrode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eReference System\u003c\/td\u003e\n\u003ctd\u003eCu \/ CuSO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eInternal Electrolyte\u003c\/td\u003e\n\u003ctd\u003eSaturated CuSO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eReference Potential\u003c\/td\u003e\n\u003ctd\u003e+0.316 V vs. NHE (25°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eInternal Element\u003c\/td\u003e\n\u003ctd\u003eHigh-purity copper rod\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\u003ePorous glass \/ ceramic \/ PTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e65–150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e~6–12 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"46\"\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003eLaboratory or field use\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\u003eSaturated CuSO₄\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"27\"\u003e\n\u003ctd\u003eExpected Lifetime\u003c\/td\u003e\n\u003ctd\u003e6–12 months (depending on use)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-VSWadP9jvo7foixZku9cbs13nvh\"\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-XPFodufiAoD2zjxRzfJc5hDpn6d\"\u003e\u003cstrong\u003eRecommended Applications\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-AW0idIgx6ok2Y0xKeUWc8jMcnzb\"\u003e\u003cstrong\u003e Corrosion Monitoring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"p1\"\u003e•Steel in concrete\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Underground steel pipelines\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Marine or coastal structures\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Cathodic protection research\u003c\/p\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-Wn1xdhi1lozEIZxuok8c92fknOW\"\u003e\n\u003cstrong\u003eSoil \/ \u003c\/strong\u003e\u003cstrong\u003eEnvironmental\u003c\/strong\u003e\u003cstrong\u003e Electrochemistry\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Soil potential measurements\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Environmental redox studies\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Geochemical sampling\u003c\/p\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-FhiydLUDZoh16Pxah4gcR6OLn7g\"\u003e\u003cstrong\u003eLaboratory Electrochemistry\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Cu-based redox chemistry\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Sulfate-containing electrolytes\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Non-chloride environments\u003c\/p\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-NKHUd3qdTotiTgx1clUcdCUQnUd\"\u003eThe Cu\/CuSO₄ system is widely preferred where \u003cstrong\u003echloride interference must be avoided\u003c\/strong\u003e.\u003c\/div\u003e\n\u003cdiv data-type=\"divider\" class=\"old-record-id-GGMwdEkYIoojecxQTykchUCvnih\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch1 class=\"heading-1 ace-line old-record-id-TLvOd2Qxioh5HsxPnHBcOA0cnyn\"\u003e\u003cstrong\u003eCustomization Available (Fully Customizable by FrankLab)\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-BDI6dOc6Ione1Ax6UM5cT4jgnMc\"\u003eFrankLab provides complete customization for civil engineering labs, corrosion R\u0026amp;D groups, and environmental monitoring applications.\u003c\/div\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-CplcdLLKyoP8uxxWWGkcpoxKnXd\"\u003e\u003cstrong\u003eCustomizable Options\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Electrode length \u0026amp; diameter\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Porous junction type \u0026amp; porosity\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Internal CuSO₄ concentration\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Copper rod thickness \u0026amp; purity level\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•High-durability field version (impact-resistant)\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Sealed or semi-sealed construction\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Angled or bent body for tight spaces\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e•Adapters for probe holders or soil insertion devices\u003c\/p\u003e\n\u003ch3 class=\"heading-3 ace-line old-record-id-IZuvdyaIaoNNBDxt1JRca9hmnxU\"\u003e\u003cstrong\u003eSubmit a Custom Request\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ace-line ace-line old-record-id-OjzTdmeX9oyWfmxGl2PcVbEinje\"\u003eYou will receive a recommended design + quotation \u003cstrong\u003ewithin 24 hours\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eFor Custom Orders or Inquiries\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eIf you have custom requirements or any additional questions, feel free to contact us:\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eEmail\u003c\/b\u003e: support@franklab.shop\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eWhy Choose FrankLab?\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eFrankLab Focused on \u003cb\u003eelectrochemical \u0026amp; research materials\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e•Stable quality for repeatable experiments\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e•Flexible customization capability\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e•Trusted by universities, institutes, and industrial R\u0026amp;D labs\u003c\/p\u003e","brand":"Franklab","offers":[{"title":"Stopper","offer_id":44624941219874,"sku":null,"price":59.9,"currency_code":"USD","in_stock":false},{"title":"Ceramic Junction","offer_id":44661887369250,"sku":null,"price":59.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0825\/7008\/4386\/files\/ScreenShot_2025-12-24_163345_572.png?v=1766980385","url":"https:\/\/franklab.shop\/products\/copper-sulfate-reference-electrode","provider":"Franklab","version":"1.0","type":"link"}