Lithium sulfate
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Lithium sulfate is a white inorganic salt with the formula Li2SO4. It is the lithium salt of sulfuric acid.
Quick Facts Names, Identifiers ...
Names | |
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IUPAC name
Lithium sulfate | |
Other names
Lithium sulphate | |
Identifiers | |
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.030.734 |
PubChem CID |
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RTECS number |
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UNII |
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CompTox Dashboard (EPA) |
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Properties[1] | |
Li2SO4 | |
Molar mass | 109.94 g/mol |
Appearance | White crystalline solid, hygroscopic |
Density | 2.221 g/cm3 (anhydrous) 2.06 g/cm3 (monohydrate) |
Melting point | 859 °C (1,578 °F; 1,132 K) |
Boiling point | 1,377 °C (2,511 °F; 1,650 K) |
monohydrate: 34.9 g/100 mL (25 °C) 29.2 g/100 mL (100 °C) | |
Solubility | insoluble in absolute ethanol, acetone and pyridine |
−-40.0·10−6 cm3/mol | |
Refractive index (nD) |
1.465 (β-form) |
Structure[2] | |
Primitive monoclinic | |
P 21/a, No. 14 | |
a = 8.239 Å, b = 4.954 Å, c = 8.474 Å | |
Lattice volume (V) |
328.9 Å3 |
Formula units (Z) |
4 |
Tetrahedral at sulfur | |
Thermochemistry | |
Heat capacity (C) |
1.07 J/g K |
Std molar entropy (S⦵298) |
113 J/mol K |
Std enthalpy of formation (ΔfH⦵298) |
−1436.37 kJ/mol |
Gibbs free energy (ΔfG⦵) |
-1324.7 kJ/mol |
Hazards | |
NFPA 704 (fire diamond) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) |
613 mg/kg (rat, oral)[3] |
Related compounds | |
Other anions |
Lithium chloride |
Other cations |
Sodium sulfate |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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