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CICLOHEXANO [3 records]
Record 1 - internal organization data 2011-08-22
Record 1, English
Record 1, Subject field(s)
- Chemical Elements and Compounds
Universal entry(ies) Record 1
Record 1, Main entry term, English
- cyclohexane
1, record 1, English, cyclohexane
correct, see observation
Record 1, Abbreviations, English
Record 1, Synonyms, English
- hexahydrobenzene 2, record 1, English, hexahydrobenzene
correct
- hexamethylene 3, record 1, English, hexamethylene
correct
- hexanaphthene 2, record 1, English, hexanaphthene
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
An alicyclic hydrocarbon which appears under the form of a colorless, mobile liquid with a pungent odour, which is insoluble in water, soluble in alcohol, acetone and benzene, which may exist in two modifications called the "boat" and the "chain" and which is used in the manufacture of nylon, glass substitutes and fungicides, as a solvent for cellulose ethers, fats, oils, waxes, bitumens, resins and crude rubbers, as a paint and varnish remover, and in analytical chemistry. 4, record 1, English, - cyclohexane
Record number: 1, Textual support number: 1 OBS
cyclohexane: form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicated on the present record; term adopted by Environment Canada: used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS). 5, record 1, English, - cyclohexane
Record number: 1, Textual support number: 2 OBS
Also known under the following commercial designations: RCRA waste number U056; UN 1145. 5, record 1, English, - cyclohexane
Record number: 1, Textual support number: 3 OBS
Chemical formula: C6H12 4, record 1, English, - cyclohexane
Record 1, French
Record 1, Domaine(s)
- Éléments et composés chimiques
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- cyclohexane
1, record 1, French, cyclohexane
correct, see observation, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- hexahydrobenzène 2, record 1, French, hexahydrobenz%C3%A8ne
correct, masculine noun
- hexaméthylène 3, record 1, French, hexam%C3%A9thyl%C3%A8ne
correct, masculine noun
- hexanaphtène 4, record 1, French, hexanapht%C3%A8ne
correct, masculine noun
- naphtène 5, record 1, French, napht%C3%A8ne
avoid, see observation, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Produit chimique se présentant sous la forme d'un liquide incolore à odeur caractéristique, insoluble dans l'eau, soluble dans l'alcool, l'acétone et le benzène, facilement inflammable, qui peut exploser avec l'air sous forme de vapeur/gaz. 6, record 1, French, - cyclohexane
Record number: 1, Textual support number: 1 OBS
cyclohexane : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche; terme retenu par Environnement Canada : utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RNSPA). 6, record 1, French, - cyclohexane
Record number: 1, Textual support number: 2 OBS
naphtène : Terme générique se rapportant à une classe de produits naturellement présents dans les pétroles bruts, composés principalement de cycloparaffines et quelquefois condensés avec des cycles aromatiques. 6, record 1, French, - cyclohexane
Record number: 1, Textual support number: 3 OBS
Formule chimique : C6H12 7, record 1, French, - cyclohexane
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Elementos y compuestos químicos
Entrada(s) universal(es) Record 1
Record 1, Main entry term, Spanish
- ciclohexano
1, record 1, Spanish, ciclohexano
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- hexametileno 2, record 1, Spanish, hexametileno
masculine noun
- nafteno 3, record 1, Spanish, nafteno
masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 OBS
Líquido incoloro, móvil, de olor fuerte. Insoluble en agua, soluble en alcohol, acetona y benceno. Inflamable. Tóxico. 3, record 1, Spanish, - ciclohexano
Record number: 1, Textual support number: 2 OBS
Fórmula química: C6H12 4, record 1, Spanish, - ciclohexano
Record 2 - internal organization data 2010-08-11
Record 2, English
Record 2, Subject field(s)
- Chemistry
Record 2, Main entry term, English
- chair form
1, record 2, English, chair%20form
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- chair 2, record 2, English, chair
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
Whereas many fully unsaturated rings are very nearly planar, their saturated or partially saturated analogs, containing tetrahedrally coordinated atoms, are necessarily three-dimensional. This frequently gives rise to a preferred orientation of the atoms in a molecule, differing from other possible orientations (conformers) by rotation about single bonds. Thus, cyclohexane exists predominantly in the chair form, although boat and twist forms of cyclohexanes are also known. 1, record 2, English, - chair%20form
Record 2, French
Record 2, Domaine(s)
- Chimie
Record 2, Main entry term, French
- forme chaise
1, record 2, French, forme%20chaise
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- chaise 2, record 2, French, chaise
correct, feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
La conformation (du groupe de symétrie D3d est appelée forme chaise [...] lorsque les atomes 1,2,4 et 5 du cyclohexane occupent des positions coplanaires et lorsque les atomes de carbone 3 et 6 sont situés sur des côtés opposés du plan. 2, record 2, French, - forme%20chaise
Record number: 2, Textual support number: 1 OBS
La forme chaise est la plus stable car elle est dans une conformation telle que tous les angles dièdres autour de chaque liaison sont voisins de 60°, situation analogue à la forme gauche du butane. Il existe donc un minimum de contraintes stériques. 3, record 2, French, - forme%20chaise
Record number: 2, Textual support number: 2 OBS
Dès 1890, H. Sachse avait remarqué qu'un cycle carboné de six éléments pouvait être construit en dehors de toute tension angulaire soit sous une forme flexible, soit sous une forme rigide ou forme chaise. Parmi l'infinité de conformations flexibles existent deux formes caractéristiques; une forme dite bateau et une forme dite croisée. 3, record 2, French, - forme%20chaise
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Química
Record 2, Main entry term, Spanish
- conformación de silla
1, record 2, Spanish, conformaci%C3%B3n%20de%20silla
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- forma de silla 1, record 2, Spanish, forma%20de%20silla
correct, feminine noun
- silla 2, record 2, Spanish, silla
correct, feminine noun
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 CONT
Los ángulos C-C-C [carbono-carbono-carbono] del ciclohexano pueden alcanzar el valor tetraédrico libre de tensión si el anillo adopta la conformación de silla [...]. Más aún, se observa a lo largo de cualquiera de los enlaces carbono-carbono [...] que en la conformación de silla el ciclohexano no presenta esfuerzo torsional; todos los enlaces C-H [carbono-hidrógeno] vecinos están perfectamente alternados. La conformación de silla del ciclohexano es de tanta importancia que todos los químicos orgánicos deben aprender a dibujarla correctamente. 3, record 2, Spanish, - conformaci%C3%B3n%20de%20silla
Record number: 2, Textual support number: 2 CONT
Las conformaciones más importantes que puede presentar el ciclohexano son la silla y el bote. [...] La forma de silla es más estable que la de bote, por lo que la forma de silla es mayoritaria. Se estima que, en un momento dado, más del 99% de las moléculas se encuentran en forma de silla. [...] En la conformación silla existen dos tipos de enlaces : axiales y ecuatoriales. Los enlaces axiales en la silla 1 pasan a ser ecuatoriales en la silla 2. Los enlaces ecuatoriales en la silla 1 pasan a ser axiales en la silla 2. Las dos sillas son indistinguibles si no poseen algún sustituyente. 4, record 2, Spanish, - conformaci%C3%B3n%20de%20silla
Record 3 - internal organization data 2004-03-09
Record 3, English
Record 3, Subject field(s)
- Chemistry
- Petrochemistry
Record 3, Main entry term, English
- naphthenic acid
1, record 3, English, naphthenic%20acid
correct, standardized
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
Any of a group of saturated higher fatty acids derived from the gas-oil fraction of petroleum by extraction with caustic soda solution and subsequent acidification. 2, record 3, English, - naphthenic%20acid
Record number: 3, Textual support number: 1 CONT
Gulf and West-coast crudes are relatively high in these acids. The commercial grade is a mixture, usually of dark color and unpleasant odor; corrosive to metals. The chief use of naphthenic acids is in the production of metallic naphthenates for paint driers and cellulose preservatives. Other uses are as solvents, detergents, rubber reclaiming agent, etc. 2, record 3, English, - naphthenic%20acid
Record number: 3, Textual support number: 1 OBS
naphthenic acid: term standardized by ISO. 3, record 3, English, - naphthenic%20acid
Record 3, French
Record 3, Domaine(s)
- Chimie
- Chimie du pétrole
Record 3, Main entry term, French
- acide naphténique
1, record 3, French, acide%20napht%C3%A9nique
correct, masculine noun, standardized
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Acides organiques, naturellement présents dans certains pétroles bruts, caractérisés par la présence d'un noyau naphténique et d'une ou plusieurs fonctions acides carboxyliques. [Définition normalisée par l'ISO.] 2, record 3, French, - acide%20napht%C3%A9nique
Record number: 3, Textual support number: 1 CONT
Les acides naphténiques sont des sous-produits utiles valorisés dans la fabrication des siccatifs pour peinture, d'émulsifiants et de savons. 2, record 3, French, - acide%20napht%C3%A9nique
Record number: 3, Textual support number: 1 OBS
acide naphténique : terme normalisé par l'ISO. 3, record 3, French, - acide%20napht%C3%A9nique
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Química
- Petroquímica
Record 3, Main entry term, Spanish
- ácido nafténico
1, record 3, Spanish, %C3%A1cido%20naft%C3%A9nico
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Acidos grasos derivados del ciclopentano, ciclohexano, cicloheptano u otros naftenos homólogos procedentes del petróleo. Son solubles en disolventes orgánicos y muy poco en agua. 2, record 3, Spanish, - %C3%A1cido%20naft%C3%A9nico
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