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ZINC COMPOUND [7 records]

Record 1 2013-08-28

English

Subject field(s)
  • Chemical Elements and Compounds
  • Cheese and Dairy Products
Universal entry(ies)
C3H6O3
formula, see observation
CH3CH2OCOOH
formula, see observation
50-21-5
CAS number
DEF

A chemical compound which appears under the form of a colorless or yellowish, syrupy, odorless, hygroscopic liquid, is miscible with water, alcohol, glycerol and furfural, insoluble in chloroform, petroleum ether and carbon disulfide, is partially converted to lactic anhydride when concentrated above 50%, has one asymmetric carbon and two enantiomorphic isomers, is derived by fermenting starch, milk whey, molasses, potatoes, etc. and neutralizing the acid as soon as formed with calcium or zinc carbonate, after which the solution of lactates is concentrated and decomposed with sulfuric acid, also synthetically by hydrolysis of lactonitrile, and is used in cultured dairy products, as an acidulant, in chemicals(salts, plasticizers, adhesives, pharmaceuticals), as a mordant in dyeing wool, as a general-purpose food additive and in the manufacture of lactates.

OBS

alpha-hydroxypropionic acid: obsolete form; the word "alpha" must be replaced by the corresponding Greek letter or italicized.

OBS

2-hydroxypropanoic acid: form recommended by the IUPAC (International Union of Pure and Applied Chemistry).

OBS

Chemical formula: C3H6O3 or CH3CH2OCOOH

Key term(s)
  • a-hydroxypropionic acid

French

Domaine(s)
  • Éléments et composés chimiques
  • Laiterie, beurrerie et fromagerie
Entrée(s) universelle(s)
C3H6O3
formula, see observation
CH3CH2OCOOH
formula, see observation
50-21-5
CAS number
DEF

Produit de la fermentation du lactose par les bactéries spécifiques du lait se présentant sous la forme d'un liquide sirupeux, incolore ou jaunâtre, inodore, hygroscopique, utilisé dans l'industrie laitière et comme additif alimentaire, dans les plastiques, les adhésifs, en teinturerie et dans l'élaboration de lactates.

OBS

acide 2-hydroxypropanoïque : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée).

OBS

acide alpha-hydroxypropionique : forme vieillie; le mot «alpha» doit être remplacé par la lettre grecque correspondante ou écrite en italique.

OBS

Formule chimique : C3H6O3 ou CH3CH2OCOOH

Key term(s)
  • acide a-hydroxypropionique

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Productos lácteos
Entrada(s) universal(es)
C3H6O3
formula, see observation
CH3CH2OCOOH
formula, see observation
50-21-5
CAS number
OBS

Líquido incoloro o amarillento, inodoro e higroscópico; miscible con agua, alcohol y glicerina; soluble en éter; insoluble en cloroformo, éter de petróleo y disulfuro de carbono. Moderadamente tóxico por ingestión; irritante.

OBS

Fórmula química : C3H6O3 o CH3CH2OCOOH

Save record 1

Record 2 2013-07-25

English

Subject field(s)
  • Prosthetic Dentistry
DEF

An impression material such as zinc oxide-eugenol, elastomeric or compound impression material, not containing water as a solvent or dispersing medium.

OBS

non-aqueous impression material: term and definition standardized by the International Organization for Standardization (ISO).

Key term(s)
  • nonaqueous impression material

French

Domaine(s)
  • Dentisterie prothétique
DEF

Produit pour empreinte, tel que les matériaux à l'oxyde de zinc-eugénol, à base d'élastomère ou matériaux thermoplastiques pour empreinte, ne contenant pas d'eau comme solvant ou milieu de dispersion.

OBS

produit pour empreinte non aqueux : terme et définition normalisés par l'Organisation internationale de normalisation (ISO).

Spanish

Save record 2

Record 3 2012-03-06

English

Subject field(s)
  • Chemical Elements and Compounds
DEF

A generic term referring to a compound which constitutes a combination of the oxide of zinc(zincic oxide) with that of iron metal.

French

Domaine(s)
  • Éléments et composés chimiques
DEF

Terme générique se rapportant aux composés formés d'oxyde de zinc et de fer.

Spanish

Save record 3

Record 4 2010-04-15

English

Subject field(s)
  • Chemistry
CONT

Limed or zinc-treated rosin [is] rosin which has been chemically reacted with a calcium or zinc compound, or both, to form a product containing a metallic salt of the rosin acids, along with unreacted rosin.

OBS

zinc-treated rosin: one of the treatment for rosin.

Key term(s)
  • zinc treated rosin

French

Domaine(s)
  • Chimie
DEF

Colophane de gemme, partiellement neutralisée à chaud par combinaison avec la chaux ou l'oxyde de zinc. [Définition normalisée par l'AFNOR et reproduite avec son autorisation.]

OBS

colophane durcie : terme normalisé par l'AFNOR.

Spanish

Save record 4

Record 5 2007-07-18

English

Subject field(s)
  • Chemical Elements and Compounds
DEF

An organic compound in which silicon is bonded to carbon ...

CONT

Organosilicon. Organosilicon compounds are chemical compounds containing carbon silicon bonds. Organosilicon chemistry is the corresponding science exploring the properties and reactivity of organosilicon compounds. Like carbon, organosilicon compounds are tetravalent and tetrahedral. Unlike carbon, silicon is not found in any biomolecule. The first organosilicon compound, tetraethylsilane was discovered by Charles Friedel and James Crafts in 1863 by reaction of tetrachlorosilane with diethyl zinc. Discovered in 1893, the simplest marriage between silicon and carbon is silicon carbide which has many industrial applications.

French

Domaine(s)
  • Éléments et composés chimiques
DEF

Composé organique renfermant au moins une liaison carbone-silicium. (P. ex. les silicones.)

OBS

organosilicié : Malgré ce qu'en disent certains dictionnaires, ce terme n'est qu'un adjectif, et ne peut donc s'employer aussi comme nom.

Spanish

Save record 5

Record 6 2007-06-27

English

Subject field(s)
  • Personal Esthetics
  • Cosmetology
  • The Skin
DEF

A substance added to a cosmetic product (lotion, spray, cream) to protect the skin from the sun’s ultraviolet (UV) radiation in order to reduce sunburn and other skin damage, thus leading to a lower risk of skin cancer; by extension, the product itself.

CONT

The best sunscreens protect against both UVB(ultraviolet radiation with wavelength between 290 and 320 nanometres), which can cause sunburn, and UVA(between 320 and 400 nanometres), which damages the skin with more long-term effects, such as premature skin aging. Most sunscreens work by containing either an organic chemical compound that absorbs ultraviolet light(such as oxybenzone) or an opaque material that reflects light(such as titanium dioxide, zinc oxide), or a combination of both. Typically, absorptive materials are referred to as chemical blocks, whereas opaque materials are mineral or physical blocks.

OBS

suntan lotion: ... an incorrect term for sunscreen as it is something entirely different. Suntan lotion is used to moisturize and maximize UV exposure and tanning, rather than block it. These are commonly called indoor tanning lotions when designed for use with tanning beds or just suntan lotion if designed for outdoor use and may or may not have SPF protection in them.

French

Domaine(s)
  • Esthétique et soins corporels
  • Cosmétologie
  • Appareil cutané
DEF

Préparation ajoutée aux produits cosmétiques antisolaires (lotions, crèmes) afin d'absorber ou de réfléchir les rayonnements ultraviolets responsables des coups de soleil; par extension, ces produits eux-mêmes.

PHR

Produit contenant un écran solaire; lotion écran solaire; marque d'écran solaire.

PHR

Appliquer un écran solaire (sur la peau).

Spanish

Campo(s) temático(s)
  • Estética personal
  • Productos de belleza
  • Piel
CONT

Existen varias formas diferentes de especificar el factor de protección solar (FPS) de un producto, por lo que recuerde comprobar qué sistema está utilizando cuando compre un filtro solar. Por ejemplo, los números norteamericanos de FPS suelen ser el doble que los números de FPS de los productos europeos. Es decir, una crema solar americana con FPS 8 es, de hecho, equivalente a una europea con FPS 4. Pregunte siempre al farmacéutico si tiene alguna duda.

Save record 6

Record 7 1995-09-13

English

Subject field(s)
  • Surface Treatment of Metals
DEF

Chemical or electrochemical process of producing a coating(conversion coating) consisting of a compound of the surface metal. Conversion coatings frequently used are, for example, chromate films on zinc and cadmium, or oxide and phosphate coatings on steel.

OBS

Anodizing of aluminium and magnesium, while satisfying this definition, is not normally called a conversion treatment.

OBS

Term and definition standardized by ISO.

French

Domaine(s)
  • Traitements de surface des métaux
DEF

Procédé chimique ou électrochimique de formation d'une couche superficielle (couche de conversion) comprenant un composé du métal de la surface. Des couches de conversion utilisées fréquemment sont, par exemple, les films de chromate sur zinc et cadmium ou les couches d'oxyde et de phosphate sur acier.

OBS

L'anodisation de l'aluminium et du magnésium, bien que répondant à cette définition, n'est pas normalement appelée «traitement de conversion».

OBS

Terme et définition normalisés par l'ISO.

Spanish

Save record 7

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