Fabricantes de productos químicos de alta calidad
Línea directa nacional de consulta:+86 021-64208466

Nitrobenzene(C6H5NO2)

IntroductionThe chemical formula C₆H₅NO₂ represents nitrobenzene, an aromatic nitro compound. N

Correo electrónico: info@standard-groups.com

Contenido

Introduction

The chemical formula C₆H₅NO₂ represents nitrobenzene, an aromatic nitro compound. Nitrobenzene is a pale yellow oil that smells like almonds. It’s toxic and can cause cancer.

Properties

Melting point: 42.26 °F (5.7 °C)

Boiling point: 411.6 °F (210.9 °C)

Molar mass: 123.11 g/mol

Density: 1.2 g/cm³

Chemical properties

It has active chemical properties and can be reduced to diazonium salts, azobenzene, etc. It will burn and explode when exposed to open flames and high heat. It reacts violently with nitric acid. It is obtained by nitrating benzene with a mixture of nitric acid and sulfuric acid. It is used as an intermediate in organic synthesis and as a raw material for the production of aniline. Nitrobenzene must undergo electrophilic substitution reactions under relatively strong conditions to generate meta-products; it has a weak oxidizing effect and can be used as an oxidant for oxidative dehydrogenation. Nitrobenzene is often produced by reacting benzene with a mixed acid of nitric acid and sulfuric acid. It is mainly used to produce aniline, benzidine, azobenzene, etc. Nitrobenzene is highly toxic. Inhaling a large amount of vapor or contaminating the skin can cause acute poisoning, oxidizing or complexing hemoglobin, turning the blood into dark brown, and causing headaches, nausea, vomiting, etc.

Production and uses

Nitrobenzene is produced from benzene on a large scale.

It’s used to make aniline, which is then used to make dyes, drugs, pesticides, and synthetic rubber.

It’s also used to make lubricating oils.

Health effects Nitrobenzene is toxic by inhalation and skin absorption, It can cause cancer, It can cause male reproductive toxicity, and It can cause skin burns.

Fórmula MolecularC6H5NO2
Masa Molar123.11
Densidad1.196 g/mL at 25 °C (lit.)
Punto de fusión5-6 °C (lit.)
punto Boling210-211 °C (lit.)
Punto Flash190°F
Disolución del aguaslightly soluble
Solubilidad1.90g/l
Presión de vapor0.15 mm Hg ( 20 °C)
Vapor Density4.2 (vs air)
AparienciaLiquid
colorClear yellow
Exposure LimitTLV-TWA 1 ppm (~5 mg/m3) (ACGIH,MSHA, and OSHA); IDLH 200 ppm(NIOSH).
Merck14,6588
BRN507540
PKa3.98(at 0℃)
PH8.1 (1g/l, H2O, 20℃)
Condición de almacenamientoAlmacene por debajo de +30°C.
EstabilidadStable. Incompatible with strong oxidizing agents, strong reducing agents, strong bases. Flammable. Note wide explosion limits.
Explosive Limit1.8-40%(V)
Índice de refracciónn20/D 1.551(lit.)
Propiedades físicas y químicasThe pure product is colorless to light yellow oily liquid.
melting point 5.85 ℃
boiling point 210.9 ℃
relative density 1.2037
refractive index 1.55296
flash point 88 ℃
soluble in ethanol, ether and benzene, slightly soluble in water.
The Pure product is a colorless to pale yellow oily liquid. Soluble in ethanol, ether and benzene, water-soluble.
UsoNitrobenzene is an important organic intermediate thereof. Nitrobenzene was sulfonated with sulfur trioxide to obtain m-nitrobenzene sulfonic acid. It can be used as a dye intermediate, mild oxidant and anti-dye salt s. Nitrobenzene was sulfonated with chlorosulfonic acid to obtain m-nitrobenzenesulfonyl chloride, which was used as intermediate of dye, medicine and so on. Nitrobenzene is chlorinated to M-nitrochlorobenzene, which is widely used in the production of dyes and pesticides. After reduction, M-chloroaniline can be obtained. Used as a dye orange GC, is also a pharmaceutical, pesticide, fluorescent whitening agent, organic pigment intermediates. Nitrobenzene re-nitration can be m-dinitrobenzene, by reduction can be m-phenylenediamine, used as dye intermediates, epoxy resin curing agent, petroleum additives, Cement accelerator, M-dinitrobenzene such as sodium sulfide for part also principle to M-nitroaniline. For the dye orange base R, is an intermediate of azo dyes and organic pigments.
 

Descargo de responsabilidad: El contenido anterior es para referencia y comunicación solo entre expertos de la industria, y no garantiza su exactitud o integridad. De acuerdo con las leyes y reglamentos relevantes y los reglamentos de este sitio web, las unidades o individuos que compren artículos relacionados deben obtener cualificaciones y condiciones de cualificación válidas.


Mensaje en línea

Detalles de contacto

Teléfono de la empresa

+86-21-6420 0566

Horas de trabajo

De lunes a viernes

Teléfono móvil:

13816217984

Correo electrónico:

info@qinsun-lab.com

Código QR