Lithium nitrate
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| Lithium nitrate | |
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| Identifiers | |
| CAS number | [] |
| PubChem | |
| Properties | |
| Molecular formula | LiNO3 |
| Molar mass | 68.946 g/mol |
| Appearance | White to light yellow solid |
| Density | 2.38 g/cm3 |
| Melting point |
255 °C, 528 K, 491 °F |
| Boiling point |
873 °C decomp. |
| Solubility in water | 90 g/100 mL (28 °C) 234 g/100 mL (100 °C) |
| Solubility | soluble in methanol, pyridine, ammonia |
| Refractive index (nD) | 1.735 [1] |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
-7.007 kJ/g |
| Hazards | |
| EU Index | Not listed |
| Main hazards | Oxidant, irritant |
| NFPA 704 |
 0
1
0
OX
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| Flash point | Non-flammable |
| Related compounds | |
| Other cations | Sodium nitrate Potassium nitrate Rubidium nitrate Caesium nitrate |
| Related compounds | Lithium sulfate Lithium chloride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Lithium nitrate is an inorganic compound with the formula LiNO3. This deliquescent colourless salt is an oxidizing agent used in the manufacture of red-colored fireworks and flares.
Upon thermal decomposition, LiNO3 gives lithium oxide (Li2O), nitrogen dioxide, and oxygen:
- 4 LiNO3 → 2 Li2O + 4 NO2 + O2
Other group I nitrates decompose differently, forming the nitrite salt and oxygen. Because of its relatively small size, the lithium cation is very polarizing, which favors the formation of the oxide.
When placed in a flame, lithium salts (not just the nitrate) give off a bright red glow.
[edit] References
- ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0070494398
[edit] External links
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