AZOBENZENE
AZOBENZENE Basic information
- Product Name:
- AZOBENZENE
- Synonyms:
-
- TRANS-AZOBENZENE
- AZOBENZENE PESTANAL
- AZOBENZENE, 1GM, NEAT
- AZOBENZENE 1X1ML MEOH 2000UG/ML
- AZOBENZENE, 500MG, NEAT
- (E)-1,2-Diphenyldiazene
- Azobenzeen
- Azobenzen
- CAS:
- 103-33-3
- MF:
- C12H10N2
- MW:
- 182.22
- EINECS:
- 203-102-5
- Product Categories:
-
- Pharmaceutical Intermediates
- Aromatics
- Azobenzene, etc. (Photochromic Compounds)
- Heterocycles
- Impurities
- Mutagenesis Research Chemicals
- Photochromic Compounds
- Functional Materials
- A
- A-BPesticides&Metabolites
- AcaricidesAlphabetic
- Alpha sort
- AR to AZ
- Pesticides
- Pesticides&Metabolites
- Stains and Dyes
- Stains&Dyes, A to
- Volatiles/ Semivolatiles
- Azo/Diazo Compounds
- Nitrogen Compounds
- Organic Building Blocks
- Aromatics, Heterocycles, Impurities, Mutagenesis Research Chemicals
- Mol File:
- 103-33-3.mol
AZOBENZENE Chemical Properties
- Melting point:
- 66 °C
- Boiling point:
- 293 °C(lit.)
- Density
- 1.09 g/mL at 25 °C(lit.)
- vapor pressure
- 1 mm Hg ( 104 °C)
- refractive index
- 1.62662 (78.1℃)
- Flash point:
- 100 °C
- storage temp.
- 2-8°C
- solubility
- 6.4mg/l
- form
- Crystalline Powder
- color
- Orange
- Water Solubility
- Soluble in alcohol, ether, benzene and glacial acetic acid. Insoluble in water.
- Merck
- 14,917
- BRN
- 1819138
- Stability:
- Stable. Combustible. Incompatible with strong oxidizing agents. Air and light sensitive.
- CAS DataBase Reference
- 103-33-3(CAS DataBase Reference)
- IARC
- 3 (Vol. 8, Sup 7) 1987
- EPA Substance Registry System
- Azobenzene (103-33-3)
Safety Information
- Hazard Codes
- T,N,Xn,F
- Risk Statements
- 45-20/22-48/22-50/53-68-67-65-62-51/53-38-11-48/20-39/23/24/25-23/24/25-52/53
- Safety Statements
- 53-45-60-61-62-36/37-33-29-16-9-7
- RIDADR
- UN 3077 9/PG 3
- WGK Germany
- 3
- RTECS
- CN1400000
- Autoignition Temperature
- 890 °F
- TSCA
- Yes
- HazardClass
- 6.1(b)
- PackingGroup
- III
- HS Code
- 29270000
- Toxicity
- LD50 orally in Rabbit: 1000 mg/kg
MSDS
- Language:English Provider:ACROS
- Language:English Provider:SigmaAldrich
- Language:English Provider:ALFA
AZOBENZENE Usage And Synthesis
Chemical Properties
orange to red crystals
Chemical Properties
Azobenzene is a combustible, orange-red crystalline solid.
Uses
Impurity in the production of Phenylbutazone (P319570).
Uses
acaricide, insecticide
Uses
Precursor for dyes, for polymers.
Definition
ChEBI: A molecule whose structure comprises two phenyl rings linked by a N=N double bond; the parent compound of the azobenzene class of compounds.
Synthesis Reference(s)
Canadian Journal of Chemistry, 38, p. 2526, 1960 DOI: 10.1139/v60-344
Chemical and Pharmaceutical Bulletin, 36, p. 1529, 1988
Tetrahedron Letters, 25, p. 1259, 1984
General Description
Orange-red crystals or dark brown chunky solid.
Air & Water Reactions
AZOBENZENE is sensitive to air and light. Dust may form an explosive mixture in air. Insoluble in water.
Reactivity Profile
AZOBENZENE is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. AZOBENZENE is incompatible with strong oxidizing agents.
Hazard
Toxic; may cause liver injury. Questionable carcinogen.
Fire Hazard
Flash point data for AZOBENZENE are not available. AZOBENZENE is probably combustible.
Safety Profile
Moderately toxic by ingestion and possibly other routes. Questionable carcinogen with experimental carcinogenic, neoplastigenic, and tumorigenic data. When heated to decomposition it emits toxic fumes of NOx.
Potential Exposure
An azo compound. Those engaged in azobenzene use in dye, rubber, chemical, and pesticide manufacturing.
Shipping
UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.
Purification Methods
Ordinary azobenzene is nearly all in the trans-form. It is partly converted into the cis-form on exposure to light [for isolation see Hartley J Chem Soc 633 1938, and for spectra of cis-and trans-azobenzenes, see Winkel & Siebert Chem Ber 74B 6701941]. trans-Azobenzene is obtained by chromatography on alumina using 1:4 *C6H6/heptane or pet ether, and it crystallises from EtOH (after refluxing for several hours) or hexane. All operations should be carried out in diffuse red light or in the dark. [Beilstein 16 IV 8.]
Incompatibilities
Azo compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. This chemical is sensitive to prolonged exposure to heat. This chemical is incompatible with strong oxidizing agents.
AZOBENZENE Preparation Products And Raw materials
Preparation Products
Raw materials
AZOBENZENESupplier
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