Cookies disclaimer

Estoy de acuerdo utilizamos cookies para mejorar la experiencia de navegación del usuario y para estudiar cómo se utiliza nuestro sitio web. si navega por nuestro sitio web, estará aceptando el uso de las cookies en las condiciones establecidas en la presente política de cookies. esta política puede ser actualizada, por lo que le invitamos a revisarla de forma regular

91-20-3 - Naphthalene, 99+% - A13188 - Alfa Aesar

A13188 Naphthalene, 99+%

Número CAS
91-20-3
Nombre Alternativo

Tamaño Precio ($) Cantidad Disponibilidad
250g 21,30
1000g 35,50
5000g 119,00
Añadir al carrito Añadir al presupuesto al por mayor Ver artículo

Naphthalene, 99+%

MDL
MFCD00001742
EINECS
202-049-5

Propiedades químicas

Fórmula
C10H8
Peso molecular
128.17
Punto de fusión
80-82°
Punto de ebullición
218°
Punto de inflamabilidad
78°(172°F)
Densidad
0.963
Índice de refracción
1.5821
Solubilidad
Soluble in benzene, toluene, chloroform, carbon disulfide, ether. Insoluble in water.

Aplicaciones

Naphthalene is formerly important in dyestuff manufacture. It acts as a precursor to phthalic anhydride. Naphthalene is used in the manufacturing of phthalic anhydride, naphthalene sulfonic acids and hydrogenated naphthalenes such as 1,2,3,4-tetrahydronaphthalene, which is used as a precursor for various dyestuffs, pigments, rubber processing chemicals and in pharmaceuticals. Its molten form is used as solvent replacing the high- boiling solvents like dichlorobenzene, nitrobenzene and durene. It is involved as reaction medium for in the Diels-Alder reaction between C60 with anthracene.

Notas

Incompatible with strong oxidizing agents.

Referencias documentales

Reacts with Na metal in 1,2-dimethoxyethane to give Na naphthalenide. This radical anion is a powerful-electron donor, e.g. in reductive dehalogenation of vic-dihalides: J. Chem. Soc., Chem. Commun., 78 (1969), and in reductive cleavage of tosylates to alcohols: J. Am. Chem. Soc., 88, 1581 (1966).

Li naphthalenide is a useful, non-nucleophilic reagent for the conversion of carboxylic acids to their dianions in cases where LDA could interfere: J. Org. Chem., 45, 1106 (1980). Similarly, has been found preferable to LDA in the lithiation of allylic nitriles: Synthesis, 358 (1981).

Carboxylic acids react with alkyl, alkenyl or aryl chlorides in the presence of Li metal and a catalytic amount of naphthalene in THF to give ketones in fair to good yields: J. Org. Chem., 61, 6058 (1996).

Hwang, Y. J.; Earmme, T.; Courtright, B. A.; Eberle, F. N.; Jenekhe, S. A. n-Type Semiconducting Naphthalene Diimide-Perylene Diimide Copolymers: Controlling Crystallinity, Blend Morphology, and Compatibility Toward High-Performance All-Polymer Solar Cells. J. Am. Chem. Soc. 2015, 137 (13), 4424-4434.

Attah, I. K.; Platt, S. P.; Meot-Ner, M.; El-Shall, M. S.; Peverati, R.; Head-Gordon, M. What Is the Structure of the Naphthalene-Benzene Heterodimer Radical Cation? Binding Energy, Charge Delocalization, and Unexpected Charge-Transfer Interaction in Stacked Dimer and Trimer Radical Cations. J. Phys. Chem. Lett. 2015, 6 (7), 1111-1118.

Indicaciones de peligro y de precaución del GHS

Indicaciones de peligro (UE): H228-H302-H351

Flammable solid. Harmful if swallowed. Suspected of causing cancer.

Indicaciones de precaución: P210-P201-P280-P240-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Obtain special instructions before use. Wear protective gloves/protective clothing/eye protection/face protection. Ground/bond container and receiving equipment. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Otras referencias

Merck
14,6370
Beilstein
1421310
Clase de peligro
4.1
Grupo de embalaje
III
Código de tarifa arancelaria unificado
2902.90
TSCA
Yes
RTECS
QJ0525000

Recomendado

Visto recientemente

Productos químicos

Ciencias de la vida

Metales & materiales

Catalizadores

Análisis y material de laboratorio