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Fiche 1,  Justifications,  Anglais

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Sometimes an ultraviolet absorber is used to benefit a paint film. Many of these compounds reradiate the absorbed energy from ultraviolet light in the form of visible light. These materials are known as fluorescent compounds. The color of the fluorescence depends on the compound.... Fluorescent pigments are used quite frequently to obtain special effects and more brilliant colors.  2, fiche 1, Anglais, - fluorescent%20paint

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fluorescent paint: term officially approved by the Lexicon Project Committee (New Brunswick).  3, fiche 1, Anglais, - fluorescent%20paint

Fiche 1,  Justifications,  Français

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Peintures contenant des pigments fluorescents, incorporés dans un liant synthétique très transparent.  2, fiche 1, Français, - peinture%20fluorescente

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peinture fluorescente : terme uniformisé par le Comité du projet de lexiques (Nouveau-Brunswick).  3, fiche 1, Français, - peinture%20fluorescente

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

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A coordination compound of ferrous iron and two molecules of cyclopentadiene in which the organic portions have typically aromatic chemical properties whose activity is intermediate between phenol and anisole, which constitutes the first compound shown to have the "sandwich" structure found in certain types of metallocene molecules, and which is used as an additive to fuel oils to improve efficiency of combustion and eliminate smoke, as an antiknock agent, a catalyst, a coating for missiles and satellites, a high-temperature lubricant, an intermediate for high temperature polymers and an ultraviolet absorber.  5, fiche 2, Anglais, - bis%28eta5%2Dpentadienyl%29iron

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bis(eta5-pentadienyl)iron: The word "eta" must be replaced by the corresponding Greek letter or italicized; the number "5" following it is a superscript.  5, fiche 2, Anglais, - bis%28eta5%2Dpentadienyl%29iron

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Chemical formula: (C₅H₅)₂Fe or C₁₀H₁₀Fe  5, fiche 2, Anglais, - bis%28eta5%2Dpentadienyl%29iron

Fiche 2,  Justifications,  Français

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Produit chimique où l'atome de fer est logé «en sandwich» entre les deux plans pentagonaux C₅H₅, qui se présente sous la forme d'aiguilles orange à odeur de camphre et s'oxyde en donnant le cation ferricinium bleu, et que l'on utilise comme antidétonant.  4, fiche 2, Français, - ferroc%C3%A8ne

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bis(êta5-pentadiényl)fer : Le mot «êta» doit être remplacé par la lettre grecque correspondante ou mis en italique; le chiffre «5» qui le suit est en exposant.  4, fiche 2, Français, - ferroc%C3%A8ne

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Formule chimique : (C₅H₅)₂Fe ou C₁₀H₁₀Fe  4, fiche 2, Français, - ferroc%C3%A8ne

Fiche 2,  Justifications,  Espagnol

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Sólido cristalino naranja, con olor a alcanfor. Insoluble en agua, ligeramente soluble en benceno, éter y éter del petróleo. Despide productos tóxicos al calentar o descomponer.  2, fiche 2, Espagnol, - ferroceno

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Fórmula química: (C₅H₅)₂Fe o C₁₀H₁₀Fe  3, fiche 2, Espagnol, - ferroceno

Fiche 3,  Justifications,  Anglais

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A yellow crystalline flavonol pigment that occurs usually in the form of glycosides(as quercitrin and rutin) in various plants and in the form of the dihydro derivative in Douglas fir, and that is used as an antioxidant, an absorber of ultraviolet rays, in rubber, plastics and vegetable oils.  9, fiche 3, Anglais, - quercetin

Record number: 3, Textual support number: 1 CONT

Quercetin is a polyphenolic bioflavonoid or flavonoid, more specifically classified as a flavonol. ... Bioflavonoids are ... commonly found in plants that are used as medicinal herbs like Hypericum perforatum (St. Johns Wort) and Sambucus nigra L (Elder flower). Quercetin is highly abundant in food and beverage sources that are part of the human diet such as broccoli, lettuce, apples, tomatoes, onions, wine, tea, and coffee.  10, fiche 3, Anglais, - quercetin

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H-: The "H-" must be italicized.  5, fiche 3, Anglais, - quercetin

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yellow flavin: commercial name.  11, fiche 3, Anglais, - quercetin

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Chemical formula: C₁₅H₅O₂ or C₁₅H₁₀O₇  12, fiche 3, Anglais, - quercetin

Fiche 3,  Justifications,  Français

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[La] quercétine [est un] flavonol [...] qui se rencontre sous forme d'hétéroside dans le houblon, le marronnier, le quercitron, le thé, etc., et qui est utilisé comme colorant jaune de la laine et de la soie.  5, fiche 3, Français, - querc%C3%A9tine

Record number: 3, Textual support number: 2 CONT

La quercétine est un flavonoïde de type flavonol. [...] de nombreuses plantes médicinales doivent leur efficacité à leur fort taux en quercétine.  6, fiche 3, Français, - querc%C3%A9tine

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Ne pas confondre «quercétol» avec «quercitol».  7, fiche 3, Français, - querc%C3%A9tine

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H- : La lettre «H-» s'écrit en italique.  2, fiche 3, Français, - querc%C3%A9tine

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Formule chimique : C₁₅H₁₀O₇ ou C₁₅H₅O₂(OH)₅  8, fiche 3, Français, - querc%C3%A9tine

Fiche 3,  Justifications,  Espagnol

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Fórmula química: C₁₅H₅O₂ or C₁₅H₁₀O₇  3, fiche 3, Espagnol, - quercetina

Fiche 4,  Justifications,  Anglais

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Any chemical compound that, admixed with a thermoplastic resin, selectively absorbs ultraviolet rays; used to prevent ultraviolet degradation of polymers.  2, fiche 4, Anglais, - ultraviolet%20stabilizer

Record number: 4, Textual support number: 1 CONT

When a polymer absorbs light, it may reradiate the absorbed energy at much longer wave lengths(heat), at slightly longer wave lengths(luminescence), or the energy may be transferred to another molecule. When none of these processes is operative, the absorbed light energy may cause bond breaking leading to degradation. By incorporating an ultraviolet absorbing compound into the plastic, it is possible to essentially eliminate all of the above processes, since the absorber even at concentrations as low as 0. 5% can effectively compete for the incident ultraviolet radiation, thus protecting the plastic form degradation. A second approach to stabilization is to incorporate an additive which, though not an absorber in itself, can accept energy from the polymer substrate, and thus, leave the polymer intact. Since protection of plastics against light degradation can be achieved by these two mechanisms, the broader term "ultraviolet stabilizer" or "light stabilizer" is used to refer to such additives.  1, fiche 4, Anglais, - ultraviolet%20stabilizer

Fiche 4,  Justifications,  Français

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Produit chimique que l'on ajoute à un matériau macromoléculaire (matière plastique, élastomère, fibre) pour le protéger contre l'action dégradante des rayons ultraviolets.  2, fiche 4, Français, - agent%20anti%2DUV

Record number: 4, Textual support number: 1 CONT

Le principe de l'agent anti-UV est d'absorber l'énergie reçue sans réémettre dans le visible. Les principaux produits utilisés sont la benzophénone et le benzotriazol. Il faut noter également que l'introduction de certains pigments (oxydes métalliques, noir de carbone) favorise la résistance aux UV de même que l'application d'un revêtement (peinture).  7, fiche 4, Français, - agent%20anti%2DUV

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ultraviolet : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).  8, fiche 4, Français, - agent%20anti%2DUV

Record number: 4, Textual support number: 2 OBS

agent anti-UV : terme normalisé par l'AFNOR.  9, fiche 4, Français, - agent%20anti%2DUV

Fiche 4,  Justifications,  Espagnol