TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A pen whose color-changing ink indicates if a paper or a paperboard is acidic or alkaline.  6, record 1, English, - pH%20testing%20pen

Record number: 1, Textual support number: 1 CONT

The pH testing pen is easy to use; simply draw a small line on the material you wish to test. The Chlorophenol red indicator solution in the pen will turn purple on any paper with a pH of 6. 8 and above. A clear or yellow colour indicates the material is probably unsuitable for conservation purposes.  7, record 1, English, - pH%20testing%20pen

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

[Stylo] à embout de feutre [permettant] de déterminer rapidement et à sec si le pH d'un papier ou d'un carton est acide ou alcalin.  2, record 1, French, - stylo%20pH

Record number: 1, Textual support number: 1 OBS

Même s'il s'agit de deux notions différentes, certains auteurs utilisent les termes «crayon indicateur de pH» et «crayon testeur de pH» pour désigner le stylo pH.  3, record 1, French, - stylo%20pH

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

... a blend of pH indicator solutions designed to identify the pH of a solution over a wide range of values.  3, record 2, English, - universal%20pH%20indicator

Record number: 2, Textual support number: 1 CONT

There are several different formulas for universal indicators ... A common mixture includes thymol blue, methyl red, bromothymol blue, and phenolphthalein.  3, record 2, English, - universal%20pH%20indicator

Record number: 2, Textual support number: 2 CONT

Universal indicator has many different colour changes, from red for strongly acidic solutions to dark purple for strongly alkaline solutions. In the middle, neutral pH 7 is indicated by green.  4, record 2, English, - universal%20pH%20indicator

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

Un indicateur universel est un mélange d'indicateurs dont les points de virage sont étalés de manière à ce que la couleur de la solution varie graduellement sur une large gamme de pH. On peut alors évaluer le pH d'une solution en y versant quelques gouttes de cet indicateur puis en comparant la couleur prise avec une échelle de teinte [...]  3, record 2, French, - indicateur%20de%20pH%20universel

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

A chemical indicator is a substance that undergoes a distinct observable change when conditions in its solution change. This could be a color change, precipitate formation, bubble formation, temperature change, or other measurable quality.  1, record 3, English, - chemical%20indicator

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Un indicateur chimique [...] répond par un changement physique ou chimique à la modification d'un ou de plusieurs paramètres prédéfinis d'un procédé.  1, record 3, French, - indicateur%20chimique

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

A method to determine the content of sulfate ions whereby a barium salt solution is added to an absorption solution and the turbidity caused by the formation of any insoluble barium sulfate detected.  1, record 4, English, - turbidimetric%20titration

Record number: 4, Textual support number: 1 CONT

With a total sulphur content of more than 0, 1 mg sulphur in the absorption solution, visual titration with an indicator can be chosen, whereas for lower contents turbidimetric titration is preferable.  2, record 4, English, - turbidimetric%20titration

Record number: 4, Textual support number: 1 OBS

potentiometric titration: term and definition standardized by ISO in 2014.  3, record 4, English, - turbidimetric%20titration

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Méthode permettant de déterminer la teneur en ions sulfate, dans laquelle on ajoute une solution de sels de baryum à une solution d’absorption; la turbidité causée par toute formation de sulfate de baryum insoluble est ensuite détectée.  2, record 4, French, - titrage%20turbidim%C3%A9trique

Record number: 4, Textual support number: 1 CONT

Le titrage visuel avec indicateur peut être choisi lorsque la teneur totale en soufre est supérieure à 0,1 mg dans la solution absorbante, le titrage turbidimétrique étant préférable pour les teneurs inférieures.  1, record 4, French, - titrage%20turbidim%C3%A9trique

Record number: 4, Textual support number: 1 OBS

titrage turbimétrique : terme et définition normalisés par l'ISO en 2014.  3, record 4, French, - titrage%20turbidim%C3%A9trique

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

... Pale yellow powder; forms an almost colorless solution in neutral or acid solution... soluble in alcohol, ether, and alkalies; insoluble in water.... Use : Acid-base indicator, laboratory reagent, medicine(laxative).  3, record 5, English, - phenolphthalein

Record number: 5, Textual support number: 1 OBS

The word "alpha" must be replaced by the corresponding Greek letter or italicized. The Gage Canadian Dictionary p. 33 gives 3 forms of this greek letter: alpha, A, and its symbol.  7, record 5, English, - phenolphthalein

Record number: 5, Textual support number: 2 OBS

Chemical formula: C₂₀ H₁₄ O₄ or (C₆H₄OH)₂C₂O₂C₆H₄  7, record 5, English, - phenolphthalein

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Corps de fonction C₂₀ H₁₄ O₄, type de phtaléines [...]. Purgatif; indicateur acide-base très utilisé [...]  4, record 5, French, - ph%C3%A9nolphtal%C3%A9ine

Record number: 5, Textual support number: 1 OBS

Formule chimique : C₂₀ H₁₄ O₄ ou (C₆H₄OH)₂C₂O₂C₆H₄  5, record 5, French, - ph%C3%A9nolphtal%C3%A9ine

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

Term(s) taken from a Canadian laboratory-equipment company’s catalogue.  1, record 6, English, - methyl%20purple%20pH%20indicator%20solution

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.  1, record 6, French, - indicateur%20de%20pH%20color%C3%A9%20m%C3%A9thylpourpre

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

A cylinder-like electrode made of glassy carbon.  2, record 7, English, - glassy%20carbon%20electrode

Record number: 7, Textual support number: 1 OBS

The glassy carbon electrode, usually a cylinder-like form whose walls are shrouded by an insulator, one end of the cylinder placed in a solution, the other end being in contact with a metallic conductor, is used as an indicator or working electrode.  2, record 7, English, - glassy%20carbon%20electrode

Record 7,  Textual support,  French

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

A form of volumetric analysis in which the formation of a colored complex is used to indicate the end point of a titration.  1, record 8, English, - complexometric%20titration

Record number: 8, Textual support number: 1 OBS

Complexometric titrations are particularly useful for the determination of a mixture of different metal ions in solution. An indicator capable of producing an unambiguous color change is usually used to detect the end-point of the titration.  1, record 8, English, - complexometric%20titration

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Analyse volumétrique dans laquelle la formation d’un complexe coloré sert d’indicateur de fin de titrage.  2, record 8, French, - titrage%20complexom%C3%A9trique

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 DEF

An electrochemical apparatus which incorporates an indicator electrode, e. g. ion-selective electrode, and a reference electrode. The outer electrolyte solution containing the compound being determined serves as a salt bridge between the reference and indicator electrodes.  2, record 9, English, - combination%20electrode

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 DEF

Ensemble comprenant une électrode à membrane sélective et une électrode de référence, placée dans un dispositif unique qui, de ce fait, évite l'utilisation d'une électrode de référence séparée.  2, record 9, French, - %C3%A9lectrode%20combin%C3%A9e

Record number: 9, Textual support number: 2 DEF

Dans un pH-mètre, élément constituant à la fois l'électrode de verre et l'électrode au calomel.  1, record 9, French, - %C3%A9lectrode%20combin%C3%A9e

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 OBS

solid-solution geothermometry: term used at Natural Resources Canada - Earth Sciences Sector.  2, record 10, English, - solid%2Dsolution%20geothermometry

Record number: 10, Textual support number: 2 OBS

Geological Thermometry(Geothermometry).-The amount of ionic substitution of one cation for another in a mineral can be a function of the temperature of formation of the mineral... Certain minerals can be used as an indicator of temperature of formation of that mineral or a related assemblage of minerals-sphalerite,(Fe, Zn) S is an example of this in which the concentration of Fe is directly proportional to the temperature of formation... Although(Fe, Zn) S is a solid solution, FeS and ZnS are not isomorphic.  3, record 10, English, - solid%2Dsolution%20geothermometry

Record number: 10, Textual support number: 3 OBS

geothermometry: Measurement of the temperatures at which geologic processes occur or occurred. Also known as geologic thermometry.  4, record 10, English, - solid%2Dsolution%20geothermometry

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 OBS

géothermométrie des solutions solides : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  2, record 10, French, - g%C3%A9othermom%C3%A9trie%20des%20solutions%20solides

Record number: 10, Textual support number: 2 OBS

Cette propriété de substitution croissante avec la température fournit en principe un moyen intéressant de connaître la température à laquelle s'est formé un minéral naturel (thermométrie géologique).  3, record 10, French, - g%C3%A9othermom%C3%A9trie%20des%20solutions%20solides

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 DEF

Logarithm of the reciprocal of the hydrogen-ion concentration in a solution (-log₁₀[H⁺]) used as a measure of the degree of acidity or alkalinity of this solution.  3, record 11, English, - pH

Record number: 11, Textual support number: 1 CONT

Roughly, pH can be divided into the following ranges: pH 0-2: Strongly acidic; pH 3-5: Weakly acidic; pH 6-8: Neutral; pH 9-11: Weakly basic; pH 12-14: Strongly basic. Under the Controlled Products Regulations, materials with pH values of 0-2 or 11.5-14 may be classified corrosive.  4, record 11, English, - pH

Record number: 11, Textual support number: 1 OBS

A pH of 7 is regarded as neutral (pure water), a pH less than 7 corresponds to an acid solution and a pH greater than 7 corresponds to an alkaline solution.  3, record 11, English, - pH

Record number: 11, Textual support number: 2 OBS

It should be noted that the pH scale is a logarithmic scale; a substance with a pH of 4 is more than twice as acid as a substance with a pH of 5. Similarly, a substance with a pH of 9 is much more than twice as alkaline as a substance with a pH of 8.  5, record 11, English, - pH

Record number: 11, Textual support number: 1 PHR

pH buffer solution, control, decline, diagram, electrode, gradient, indicator, limit, measurement, meter, modifier, probe, range, scale, unit, value.  6, record 11, English, - pH

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Indice exprimant l'activité (ou la concentration) de l'ion hydrogène dans une solution à l'aide d'une échelle logarithmique.  5, record 11, French, - pH

Record number: 11, Textual support number: 1 OBS

Si le pH est inférieur à 7, la solution est acide; s'il est supérieur, elle est alcaline.  5, record 11, French, - pH

Record number: 11, Textual support number: 1 PHR

valeur de pH.  6, record 11, French, - pH

Record 11,  Textual support,  Spanish

Record number: 11, Textual support number: 1 DEF

Cologaritmo de la concentración de iones hidrógeno en una solución (-log₁₀[H⁺]) utilizado como medida del grado de acidez o alcalinidad de esta solución.  3, record 11, Spanish, - pH

Record number: 11, Textual support number: 1 OBS

Un pH de 7 se considera neutro (agua pura), un pH inferior a 7 corresponde a una solución ácida y un pH superior a 7 a una solución alcalina.  3, record 11, Spanish, - pH

Record number: 11, Textual support number: 1 PHR

valor de pH.  4, record 11, Spanish, - pH

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

Some indicator solutions or tablets, sold specifically for pools, contain a dechlorinating reagent as an integral component.  2, record 12, English, - indicator%20solution

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 CONT

Certaines solutions ou pastilles indicatrices, vendues expressément pour les piscines, contiennent un réactif de déchloration.  2, record 12, French, - solution%20indicatrice

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 DEF

Determination of the hydrogen-ion concentration in an ionized solution by means of an indicator solution(such as phenol phthalein) or a pH meter.  2, record 13, English, - pH%20measurement

Record number: 13, Textual support number: 1 CONT

The two general methods available for the determination of hydrogen-ion activity and the pH values of solutions are the potentiometric procedures and the calorimetric procedures. ... At the present time the glass electrode, in combination with reference electrodes, is the cell most used for pH measurements.  3, record 13, English, - pH%20measurement

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 CONT

La mesure de l'activité des ions H+, c'est-à-dire la mesure du pH d'une solution, peut se faire par voie électrométrique ou par voie colorimétrique. La détermination électrométrique du pH repose sur la mesure de la f.é.m. [...]  1, record 13, French, - mesure%20de%20pH

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

An indicator which precipitates from solution in a readily visible form at or near the equivalence-point.  1, record 14, English, - precipitation%20indicator

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

[...] indicateur qui précipite de la solution de façon visible au voisinage du point d'équivalence.  1, record 14, French, - indicateur%20par%20pr%C3%A9cipitation

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 OBS

An end-point measured as follows. The course of the reaction is monitored radiochemically by adding a radioactive indicator which may be precipitated, or dissoved, at the equivalence-point, thus changing the radioactivity of the solution phase. A plot is made of instrumental response against titrant added. End-points are generally located by extrapolation at changes in slope in the titration curve.(In some instances the titratable solute or the titrant may be radioactive, in which case no added indicator may be required.  1, record 15, English, - radiometric%20end%2Dpoint

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 DEF

Le déroulement de la réaction est suivi par une méthode radiochimique après addition d'un indicateur radioactif qui peut, soit précipiter, soit se redissoudre au point d'équivalence, modifiant ainsi la radioactivité de la solution. On représente la variation de la réponse de l'instrument de mesure en fonction de la quantité de réactif titrant ajouté. Le point de fin de titrage est généralement obtenu par extrapolation au changement de pente (dans certains cas, le soluté titré ou le réactif titrant peuvent être radioactifs; il n'est alors pas nécessaire d'ajouter un indicateur).  1, record 15, French, - d%C3%A9tection%20radiom%C3%A9trique

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 DEF

An electrode(half-cell) used for the determination of the concentration(activity), or detection of changes in the concentration(activity), of an electroactive substance by measuring the electrode potential or the current processes occurring at the indicator electrode do not affect the change of the bulk composition of the solution being investigated.  2, record 16, English, - indicator%20electrode

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 DEF

Électrode qui sert de transducteur répondant au signal d'excitation (s'il existe) à la composition de la solution étudiée; toutefois, au cours de la mesure, une telle électrode ne provoque pas de variations notables dans la composition globale de la solution.  3, record 16, French, - %C3%A9lectrode%20indicatrice

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  English

Record number: 17, Textual support number: 1 DEF

The determination of residual chlorine in water or wastewater by addition of potassium iodide and titration of the liberated iodine with a standard solution of sodium thiosulfate, with starch solution as a colorimetric indicator.  2, record 17, English, - iodometric%20chlorine%20test

Record 17,  Textual support,  French

Record number: 17, Textual support number: 1 DEF

Détermination du chlore résiduel d'une eau par l'addition d'iodure de potassium (KI) et par le titrage de l'iode libéré, à l'aide d'une solution normale de thiosulfate de sodium (Na2S2O3), en utilisant une solution d'amidon comme indicateur colorimétrique.  1, record 17, French, - dosage%20iodom%C3%A9trique%20du%20chlore

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 CONT

The simplest solution consists of equipping the battery of filters with flow measuring and indicating instruments, and of adding regulating-valve systems controlled manually according to the indicator readings.  1, record 18, English, - flow%20indicating%20instrument

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 CONT

La solution simple consiste à équiper la batterie d'appareils de mesure et de lecture de débits et d'y ajouter des organes de vannage, qui sont actionnés manuellement en fonction des lectures effectuées.  1, record 18, French, - appareil%20de%20lecture%20de%20d%C3%A9bit

Record 18,  Textual support,  Spanish

Record 19,  Textual support,  English

Record number: 19, Textual support number: 1 CONT

The simplest solution consists of equipping the battery of filters with flow measuring and indicating instruments, and of adding regulating-valve systems controlled manually according to the indicator readings.  1, record 19, English, - flow%20measuring%20instrument

Record 19,  Textual support,  French

Record number: 19, Textual support number: 1 CONT

La solution simple consiste à équiper la batterie d'appareils de mesure et de lecture de débits et d'y ajouter des organes de vannage, qui sont actionnées manuellement en fonction des lectures effectuées.  1, record 19, French, - appareil%20de%20mesure%20de%20d%C3%A9bits

Record 19,  Textual support,  Spanish

Record 20,  Textual support,  English

Record number: 20, Textual support number: 1 CONT

The simplest solution consists of equipping the battery of filters with flow measuring and indicating instruments, and of adding regulating-valve systems controlled manually according to the indicator readings.  1, record 20, English, - controlled%20manually

Record 20,  Textual support,  French

Record number: 20, Textual support number: 1 CONT

La solution simple consiste à équiper la batterie d'appareils de mesure et de lecture de débits et d'y ajouter des organes de vannage, qui sont actionnés manuellement en fonction des lectures effectuées.  1, record 20, French, - actionn%C3%A9%20manuellement

Record 20,  Textual support,  Spanish

Record 21,  Textual support,  English

Record number: 21, Textual support number: 1 OBS

... The simplest solution consists of equipping the battery of filters with flow measuring and indicating instruments, and of adding regulating-valve systems controlled manually according to the indicator readings.  1, record 21, English, - regulating%2Dvalve%20system

Record 21,  Textual support,  French

Record number: 21, Textual support number: 1 OBS

[...] La solution simple consiste à équiper la batterie d'appareils de mesure et de lecture de débits et d'y ajouter des organes de vannage, qui sont actionnés manuellement en fonction des lectures effectuées.  1, record 21, French, - organe%20de%20vannage

Record 21,  Textual support,  Spanish