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Name |
Phenyl azide |
EINECS | N/A |
CAS No. | 622-37-7 | Density | 1.0860 |
PSA | 49.75000 | LogP | 2.08116 |
Solubility | N/A | Melting Point |
-27.5°C |
Formula | C6H5 N3 | Boiling Point | 212.39°C (rough estimate) |
Molecular Weight | 119.126 | Flash Point | -12°C |
Transport Information | N/A | Appearance | N/A |
Safety | Explodes when heated. Explosive or violent reactions with Lewis acids [e.g., aluminum chloride (explosive); sulfuric acid (violent)]. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES. | Risk Codes | 742248 |
Molecular Structure | Hazard Symbols | 742248 | |
Synonyms |
Azidobenzene;Benzene, triazo-; NSC 512574; Phenyl azide |
Article Data | 345 |
IUPAC Name: Azidobenzene
Synonyms :Benzene, azido- ; Diazoaminobenzen ; Diazoaminobenzol ; p-Diazoaminobenzene
CAS NO:622-37-7
Molecular Formula of Phenyl azide (CAS NO.622-37-7) :C6H5N3
Molecular Weight of Phenyl azide (CAS NO.622-37-7) :119.12
Molecular Structure of Phenyl azide (CAS NO.622-37-7) :
EINECS:210-730-3
C6H5N3 is used to make heterocycles via cycloaddition to alkenes and especially alkynes, particularly those bearing electronegative substituents.
Phenyl azide is prepared by the diazotization of phenylhydrazine with nitrous acid:
C6H5NHNH2 + HNO2 → C6H5N3 + 2 H2O
Explodes when heated. Explosive or violent reactions with Lewis acids [e.g., aluminum chloride (explosive); sulfuric acid (violent)]. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES
.A protective blast shield is needed during purification and handling. Distillation temperatures should be as low a possible. Organic Syntheses recommends 5mm Hg to give a boiling point of ''66–68 °C/21 mm. with a bath temperature of 70–75 °C.'' The pure substance may be stored in the dark, cold, and even then the shelf-life is only weeks.