Description
SE21 reference electrode Ag/AgCl with ceramic diaphragm and saturated KCl liquid electrolyte is a laboratory reference half-cell for electrochemical measurements. The silver/silver chloride sensing system combined with a ceramic diaphragm provides a stable reference potential for potentiometric work, including pH, ion-selective and related electrode setups that require a defined Ag/AgCl reference. Liquid electrolyte based on saturated potassium chloride supports ionic contact through the ceramic junction under typical laboratory conditions. The electrode is intended for use in analytical chemistry, process monitoring support and teaching laboratories where a classic Ag/AgCl reference with ceramic diaphragm geometry is specified. Gross weight is 0,10 kg. Offered as a single unit from manufacturer Meinsberg – a Xylem brand, the SE21 fits standard reference-electrode roles in multi-electrode cells and meter configurations that call for a liquid-electrolyte Ag/AgCl reference with ceramic diaphragm and KCl sat. fill.
This article is part of Titrators & electrochemistry systems, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Model: SE21
- Electrode type: Ag/AgCl reference electrode
- Diaphragm: Ceramic
- Electrolyte: Saturated KCl liquid electrolyte
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Questions about SE21
What is this article?
SE21 is the article on this page. Luminix Health distributes Meinsberg - a Xylem brand for laboratory use. It sits in Titrators & electrochemistry systems, inside pH & electrochemistry, in Lab instruments.
A titrator adds a reagent and watches an electrode until an endpoint, then calculates the amount. It is a burette, a stirrer and a meter in one. The electrode and the reagent concentration still decide the result. A manual titration is the same chemistry without the automation.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
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The category is pH & electrochemistry. The sub-category is Titrators & electrochemistry systems. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, pH meters, Conductivity meters & cells, Dissolved oxygen & multiparameter meters and pH & electrochemistry accessories.
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