quinhydrone electrode

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• Quinhydrone electrode — is one of several oxidation reduction electrode s used for measuring hydrogen ion concentration or pH. It consists of an inert metal wire (usually platinum) in contact with quinhydrone crystals and a water based solution. Quinhydrone is slightly… …   Wikipedia

• quinhydrone electrode — chinhidrono elektrodas statusas T sritis chemija apibrėžtis Platina chinhidrono tirpale: Pt|C₆H₄O₂, C₆H₄(OH)₂. atitikmenys: angl. quinhydrone electrode rus. хингидронный электрод …   Chemijos terminų aiškinamasis žodynas

• quinhydrone electrode — A system consisting of a clean, polished, gold or platinum electrode dipping into a solution containing a little quinhydrone, for determining pH values, making use of the pH dependence of the redox properties of the system …   Dictionary of automotive terms

• quinhydrone electrode — noun : an electrode consisting of a platinum wire in a solution containing quinhydrone used to determine hydrogen ion concentration …   Useful english dictionary

• quinhydrone — /kwin huy drohn, kwin huy drohn/, n. Chem. a dark green, crystalline, slightly water soluble solid, C12H10O4, used in solution, together with a platinum wire, as an electrode (quinhydrone electrode). [1855 60; QUIN(INE) + HYDR(OQUIN)ONE] * * * …   Universalium

• quinhydrone — ● quinhydrone nom féminin Composé vert C12H10O4, résultant de la combinaison d une molécule d hydroquinone et d une molécule de parabenzoquinone, utilisé en électrochimie comme substrat d électrode. quinhydrone [kinidʀɔn] n. f. ÉTYM. D. i.; de… …   Encyclopédie Universelle

• electrode — 1. Device to record one of the two extremities of an electric circuit; one of the two poles of an electric battery or of the end of the conductors connected thereto. 2. An electrical terminal specialized for a particular electrochemical reaction …   Medical dictionary

• quinhydrone — A mixture of equimolecular quantities of quinone and hydroquinone; used in pH determinations ( i.e., via a q. electrode). * * * quin·hy·drone .kwin hī .drōn n a green crystalline compound C12H10O4 used in pH determinations also any of various… …   Medical dictionary

• Glass electrode — A glass electrode is a type of ion selective electrode made of a doped glass membrane that is sensitive to a specific ion. It is an important part of the instrumentation for chemical analysis and physico chemical studies. In modern practice,… …   Wikipedia

• Standard hydrogen electrode — NHE redirects here. For the sodium hydrogen exchanger protein, see Sodium hydrogen antiporter. The standard hydrogen electrode (abbreviated SHE), is a redox electrode which forms the basis of the thermodynamic scale of oxidation reduction… …   Wikipedia

• PH — is the measure of the acidity or alkalinity of a solution. It is formally a measure of the activity of dissolved hydrogen ions (H+), but for very dilute solutions, the molarity (molar concentration) of H+ may be used as a substitute with little… …   Wikipedia