Adiponitrile
Adiponitrile is an organic compound with the chemical formula (CH2)4(CN)2. This viscous, colourless dinitrile is an important precursor to the polymer nylon 66. In 2005, about one million tonnes of adiponitrile were produced.
| Names | |
|---|---|
| Preferred IUPAC name
Hexanedinitrile | |
Other names
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| Identifiers | |
3D model (JSmol) |
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| 1740005 | |
| ChemSpider | |
| ECHA InfoCard | 100.003.543 |
| EC Number |
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| MeSH | adiponitrile |
PubChem CID |
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| RTECS number |
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| UNII | |
| UN number | 2205 |
CompTox Dashboard (EPA) |
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SMILES
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| Properties | |
| C6H8N2 | |
| Molar mass | 108.144 g·mol−1 |
| Appearance | Colourless liquid |
| Density | 951 mg mL−1 |
| Melting point | 1 to 3 °C; 34 to 37 °F; 274 to 276 K |
| Boiling point | 295.1 °C; 563.1 °F; 568.2 K |
| 50 g/L (20 °C) | |
| Vapor pressure | 300 mPa (at 20 °C) |
Refractive index (nD) |
1.438 |
| Thermochemistry | |
Std enthalpy of formation (ΔfH⦵298) |
84.5–85.3 kJ mol−1 |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H301, H315, H319, H330, H335 | |
| P260, P284, P301+P310, P305+P351+P338, P310 | |
| NFPA 704 (fire diamond) |
4
2
0 |
| Flash point | 93 °C; 199 °F; 366 K (open cup) |
| 550 °C (1,022 °F; 823 K) | |
| Explosive limits | 1.7–4.99% |
| Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
155 mg kg−1 (oral, rat) |
| NIOSH (US health exposure limits): | |
PEL (Permissible) |
none |
REL (Recommended) |
TWA 4 ppm (18 mg/m3) |
IDLH (Immediate danger) |
N.D. |
| Related compounds | |
Related alkanenitriles |
Glutaronitrile |
Related compounds |
hexanedioic acid hexanedihydrazide hexanedioyl dichloride hexanediamide 1,4-diisocyanobutane |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
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