3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||68.946 g/mol|
|Appearance||White to light yellow solid|
|Melting point||255 °C (491 °F; 528 K)|
|Boiling point||600 °C (1,112 °F; 873 K) (decomposes)|
|52.2 g/100 mL (20 °C) |
90 g/100 mL (28 °C)
234 g/100 mL (100 °C)
|Solubility||soluble in ethanol, methanol, pyridine, ammonia, acetone|
|−62.0·10−6 cm3/mol (+3 H2O)|
Refractive index (nD)
Heat capacity (C)
|64 J/(mol K)|
|105 J/(mol K)|
Std enthalpy of
|−7.007 kJ/g or −482.3 kJ/mol|
Gibbs free energy (ΔfG˚)
Std enthalpy of
|Occupational safety and health (OHS/OSH):|
|NFPA 704 (fire diamond)|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
|1426 mg/kg (oral, rat)|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Lithium nitrate is an inorganic compound with the formula LiNO3. It is the lithium salt of nitric acid (an alkali metal nitrate). The salt is deliquescent, absorbing water to form the hydrated form, lithium nitrate trihydrate. Its eutectics are of interest for heat transfer fluids.
It is made by treating lithium carbonate or lithium hydroxide with nitric acid.
This deliquescent colourless salt is an oxidizing agent used in the manufacture of red-colored fireworks and flares.
The hydrated form, lithium nitrate trihydrate, has an extremely high specific heat of fusion, 287±7 J/g, and hence can be used for thermal energy storage at its melt temperature of 303.3 K.
Lithium nitrate has been proposed as a medium to store heat collected from the sun for cooking. A Fresnel lens would be used to melt solid lithium nitrate, which would then function as a "solar battery", allowing heat to be redistributed later by convection.
Lithium nitrate can be synthesized by reacting nitric acid and lithium carbonate.
Generally when forming LiNO3, a pH indicator is used to determine when all of the acid has been neutralized. However, this neutralization can also be recognized with the loss of carbon dioxide production. In order to rid the final product of excess water, the sample is heated.
Lithium nitrate can be toxic to the body when ingested by targeting the central nervous system, thyroids, kidneys, and cardio-vascular system. When exposed to the skin, eyes, and mucous membranes, lithium nitrate can cause irritation to these areas.