TERMIUM Plus^®

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

A chemical compound which appears under the form of colorless, deliquescent crystals, is soluble in water, alcohol and ether, is available commercially as a 70% solution in the form of a light straw-colored liquid whith an odour like burnt sugar, and is used for dyeing and tanning leather, in textile dyeing, in cleaning, polishing, and soldering compounds, in copper pickling, in adhesives, electroplating, breaking of petroleum emulsions, as a chelating agent for iron, in chemical milling and for pH control.  4, record 2, English, - hydroxyacetic%20acid

Record number: 2, Textual support number: 1 OBS

hydroxyacetic acid: part of the Ingredient Disclosure List of the Hazardous Products Act (Registration SOR/88-64, December 31, 1987).  4, record 2, English, - hydroxyacetic%20acid

Record number: 2, Textual support number: 2 OBS

Chemical formula: CH₂OHCOOH or C₂H₄O₃ or HO-CH₂-CO₂-H  4, record 2, English, - hydroxyacetic%20acid

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

acide hydroxyacétique : fait partie de la Liste de divulgation des ingrédients de la Loi sur les produits dangereux (du Canada; enr. DORS s/88-64, 31 déc. 1987).  5, record 2, French, - acide%20hydroxyac%C3%A9tique

Record number: 2, Textual support number: 2 OBS

Formule chimique : CH₂OHCOOH ou C₂H₄O₃ ou HO-CH₂-CO₂-H  5, record 2, French, - acide%20hydroxyac%C3%A9tique

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 OBS

Cristales incoloros, delicuescentes. Soluble en agua, alcohol y éter. Combustible. Moderadamente tóxico.  2, record 2, Spanish, - %C3%A1cido%20glic%C3%B3lico

Record number: 2, Textual support number: 2 OBS

Fórmula química: CH₂OHCOOH o C₂H₄O₃ o HO-CH₂-CO₂-H  3, record 2, Spanish, - %C3%A1cido%20glic%C3%B3lico

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

A black magnetic iron oxide found in nature as magnetite, also obtained synthetically(as from iron by heating in steam or from a ferrous salt and an alkali by precipitation and oxidation), and used chiefly as a pigment and a polishing compound but also as a catalyst, in magnetic inks, in metallurgy, in ferrites for the electronic industry and in coatings for magnetic tapes.  9, record 3, English, - iron%28II%29%20diiron%28III%29%20oxide

Record number: 3, Textual support number: 1 OBS

Chemical formula: Fe₃0₄  9, record 3, English, - iron%28II%29%20diiron%28III%29%20oxide

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Composés du fer. [...] L'oxyde magnétique Fe₃O₄, ou oxyde salin, constitue la pierre d'aimant naturelle; on l'obtient artificiellement par combustion du fer ou par action de la vapeur d'eau. C'est une poudre noire qu'on peut considérer comme une combinaison des deux autres oxydes [ferreux et ferrique].  9, record 3, French, - oxyde%20de%20fer%28II%29%20et%20de%20difer%28III%29

Record number: 3, Textual support number: 1 OBS

oxyde de fer : ce terme désigne chacun des composés du fer avec l'oxygène, comme l'oxyde ferreux (FeO), l'oxyde ferrique (Fe₂O₃), et l'oxyde ferrosoferrique (Fe₃O₄).  10, record 3, French, - oxyde%20de%20fer%28II%29%20et%20de%20difer%28III%29

Record number: 3, Textual support number: 2 OBS

Formule chimique : Fe₃O₄  10, record 3, French, - oxyde%20de%20fer%28II%29%20et%20de%20difer%28III%29

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The red or black crystalline sesquioxide of iron... that is found in nature both as hematite and as hydrated forms(as rust and limonite) and is also obtained synthetically(as by calcining ferrous sulfate or hydrated ferric oxide) and that is used chiefly as a pigment and polishing material and in the removal of hydrogen sulfide from gases.  9, record 4, English, - iron%28III%29%20oxide

Record number: 4, Textual support number: 1 OBS

Chemical formula: Fe₂O₃  2, record 4, English, - iron%28III%29%20oxide

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

L'oxyde ferrique [...] est très répandu dans la nature; la rouille en est un hydrate.  7, record 4, French, - oxyde%20de%20fer%28III%29

Record number: 4, Textual support number: 1 OBS

Formule chimique : Fe₂O₃  1, record 4, French, - oxyde%20de%20fer%28III%29

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 DEF

Compuesto de oxígeno y hierro [...]  2, record 4, Spanish, - %C3%B3xido%20f%C3%A9rrico

Record number: 4, Textual support number: 1 OBS

Polvo de color rojo oscuro, denso, que se encuentra en la naturaleza (hematites) y que puede obtenerse por calcinación del sulfato ferroso o deshidratación del hidróxico férrico. Tiene aplicaciones en metalurgia, como pigmento en pinturas, en productos cauchíferos y como mordiente en la industria textil.  2, record 4, Spanish, - %C3%B3xido%20f%C3%A9rrico

Record number: 4, Textual support number: 2 OBS

El óxido férrico o sesquióxido constituye el colcótar.  5, record 4, Spanish, - %C3%B3xido%20f%C3%A9rrico

Record number: 4, Textual support number: 3 OBS

Fórmula química: Fe₂O₃  2, record 4, Spanish, - %C3%B3xido%20f%C3%A9rrico

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A iron oxide used both as a gemstone and in powdered form as a polishing abrasive(jeweller's rouge).  4, record 5, English, - hematite

Record number: 5, Textual support number: 1 CONT

Hematite occurs in splendent, metallic-looking, steel-gray or iron-black rhombohedral crystals, in reniform masses or fibrous aggregates, or in deep-red or red-brown earthy forms; it has a distinctive cherry-red to reddish-brown streak ... Hematite is the principal ore of iron.  2, record 5, English, - hematite

Record number: 5, Textual support number: 1 OBS

Because of its mamillary contours it is also known as kidney stone. ... Trigonal. ... Opaque, reddish-black. Occurrence: Elba, England.  4, record 5, English, - hematite

Record number: 5, Textual support number: 2 OBS

Chemical formula: Fe₂O₃  5, record 5, English, - hematite

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Oxyde ferrique naturel [...]  2, record 5, French, - h%C3%A9matite

Record number: 5, Textual support number: 1 CONT

Hématite. [...] Cet important minerai de fer est très répandu à la surface de la terre. L'ocre rouge est la variété terreuse, l'oligiste, ou fer spéculaire, est la variété cristallisée [...]  3, record 5, French, - h%C3%A9matite

Record number: 5, Textual support number: 1 OBS

Formule chimique : Fe₂O₃  4, record 5, French, - h%C3%A9matite

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 OBS

Fórmula química: Fe₂O₃  2, record 5, Spanish, - hematita

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 DEF

A round, cast-iron disc charged with diamond powder used to polish a diamond.  8, record 6, English, - scaife

Record number: 6, Textual support number: 1 CONT

The same scaife is used for all of the steps of faceting and polishing. The coarsest abrasives are placed in the center and the abrasives become finer as they reach the outside edge. Brillianteering and polishing take place farther out on the scaife than blocking and cross-working.  9, record 6, English, - scaife

Record number: 6, Textual support number: 1 OBS

lap : The rotary metal or wooden disc(sometimes surfaced with cloth or leather) used by lapidaries for polishing gemstones. For diamond polishing the lap is made of cast iron and is called a scaife or a mill.  7, record 6, English, - scaife

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 DEF

Plateau en fonte enduit de poudre de diamant servant à la taille et au polissage.  5, record 6, French, - meule

Record number: 6, Textual support number: 1 CONT

Une meule de diamantaire comporte une zone de taille, où la surface du diamant est en quelque sorte rabotée par arrachage de matière, et une zone de polissage, où la facette formée est polie par abrasion des irrégularités de l'usure précédente (à l'aide de poudre d'une granulation plus fine).  4, record 6, French, - meule

Record number: 6, Textual support number: 2 CONT

Pour tailler les facettes, on fixe le diamant dans un dop [qui] est posé sur la meule de fonte poreuse garnie de poudre de diamant. Cette meule horizontale tourne à grande vitesse. Le diamantaire appuie sur son dop pour user un peu le diamant, puis, d'un geste vif, il relève le dop et contrôle à la loupe que le début de facette se forme bien [...]  6, record 6, French, - meule

Record number: 6, Textual support number: 1 OBS

Disque [...] tournant généralement horizontalement.  7, record 6, French, - meule

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

It is customary to process optical elements in multiples by fastening or blocking a suitable number on a common support.  1, record 7, English, - block

Record number: 7, Textual support number: 1 OBS

Lens surfaces are ground on an iron tool, either flat or suitably curved, using progressively finer grades of wet emery or carborundum powder as abrasives. A number of fine-ground lens blanks are then mounted with pitch on a block... so that they can be polished together. The polishing tool is covered with a thin layer of pitch, wax, or even coarse cloth. Wet rouge or certain other mineral oxides are used as polishing materials.  2, record 7, English, - block

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

(Polir une lentille) à l'aide d'une pâte abrasive.  2, record 7, French, - blanter

Record number: 7, Textual support number: 1 CONT

Pour fabriquer une lentille ou un objectif, on passe par différentes phases : d'abord l"ébauche" qui consiste à donner sa forme à la pièce au dixième de millimètre près à l'aide d'un "tour à ébaucher"; puis on "blante" la pièce, posant sur toute sa surface un "ciment" de la consistance de la pâte à modeler.  3, record 7, French, - blanter

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

Polishing with a material such as cloth, lead, plastic, wood, iron, or copper having fine abrasive particles incorporated or rubbed into the surface.  1, record 8, English, - lapping

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 DEF

Opération de finition superficielle exécutée à l'aide d'une poudre abrasive sur support métallique (fonte, laiton, cuivre, etc.) ou étendue sous forme de pâte ou encore véhiculée par un liquide.  1, record 8, French, - rodage

Record 8,  Textual support,  Spanish