Below is a test chemical info box:
 | |||
| |||
| Names | |||
|---|---|---|---|
| IUPAC name Azane | |||
| Other names Hydrogen nitride Trihydrogen nitride | |||
| Identifiers | |||
3D model (JSmol) | |||
| 3DMet | |||
| 3587154 | |||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| EC Number |
| ||
| 79 | |||
| KEGG | |||
| MeSH | Ammonia | ||
PubChem CID | |||
| RTECS number |
| ||
| UNII | |||
| UN number | 1005 | ||
| |||
| Properties | |||
| NH3 | |||
| Molar mass | 17.031 g/mol | ||
| Appearance | Colourless gas | ||
| Odor | strong pungent odor | ||
| Melting point | −77.73 °C (−107.91 °F; 195.42 K) | ||
| Boiling point | −33.34 °C (−28.01 °F; 239.81 K) | ||
| 47% (0 °C) 31% (25 °C) 28% (50 °C)[1] | |||
| Solubility | soluble in chloroform, ether, ethanol, methanol | ||
| Vapor pressure | 8573 h Pa | ||
| Acidity (pKa) | 32.5 (−33 °C),[2] 10.5 (DMSO) | ||
| Basicity (pKb) | 4.75 | ||
Refractive index (nD) | 1.3327 | ||
| Viscosity | 0.276 cP (-40 °C) | ||
| Structure | |||
| Trigonal pyramid | |||
| 1.42 D | |||
| Thermochemistry | |||
Std molar entropy (S⦵298) | 193 J·mol−1·K−1[3] | ||
Std enthalpy of formation (ΔfH⦵298) | −46 kJ·mol−1[3] | ||
| Hazards | |||
| GHS labelling: | |||
    [4] | |||
| H221, H280, H314, H331, H400[4] | |||
| P210, P261, P273, P280, P305+P351+P338, P310[4] | |||
| NFPA 704 (fire diamond) | |||
| Flash point | flammable gas (see text) | ||
| Explosive limits | 15–28% | ||
| Lethal dose or concentration (LD, LC): | |||
LD50 (median dose) | 0.015 mL/kg (human, oral) | ||
| NIOSH (US health exposure limits): | |||
PEL (Permissible) | 50 ppm (25 ppm ACGIH- TLV; 35 ppm STEL) | ||
| Related compounds | |||
Other cations | Phosphine Arsine Stibine | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
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