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Revision as of 12:15, 15 February 2012 by Beetstra (talk | contribs) (Saving copy of the {{chembox}} taken from revid 476638225 of page Hydrogen_fluoride for the Chem/Drugbox validation project (updated: '').)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) | This page contains a copy of the infobox ({{chembox}}) taken from revid 476638225 of page Hydrogen_fluoride with values updated to verified values. |
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| Properties | |||
| Chemical formula | FH | ||
| Molar mass | 20.006 g·mol | ||
| Appearance | colorless gas | ||
| Density | 1.15 g/L, gas (25 °C) 0.99 g/mL, liquid (19.5 °C) | ||
| Melting point | −83.6 °C (−118.5 °F; 189.6 K) | ||
| Boiling point | 19.5 °C (67.1 °F; 292.6 K) | ||
| Solubility in water | miscible | ||
| Acidity (pKa) | 3.2 | ||
| Refractive index (nD) | 1.00001 | ||
| Structure | |||
| Molecular shape | Linear | ||
| Dipole moment | 1.86 D | ||
| Thermochemistry | |||
| Std molar entropy (S298) |
8.687 J/g K (gas) | ||
| Std enthalpy of formation (ΔfH298) |
−13.66 kJ/g (gas) −14.99 kJ/g (liquid) | ||
| Hazards | |||
| NFPA 704 (fire diamond) |
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| Related compounds | |||
| Other anions | Hydrogen chloride Hydrogen bromide Hydrogen iodide | ||
| Other cations | Sodium fluoride | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
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Infobox references
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Chemical compound