CAS number : 12057-24-8
Molecular weight :
Molecular formula/chemical symbol :Li2O
Description :
White powder
In the solid state lithium oxide (also known as dilithium monoxide) adopts an antifluorite structure which is related to the CaF2, fluorite structure with Li cations substituted for fluoride anions and oxide anions substituted for calcium cations. The ground state gas phase Li2O molecule is linear with a bond length consistent with strong ionic bonding. VSEPR theory would predict a bent shape similar to H2O.
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Lithium oxide |
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IUPAC name[hide] Lithium oxide |
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Other names[hide] Kickerite |
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Identifiers |
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145811 |
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OJ6360000 |
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Jmol-3D images |
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Properties |
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Li2O |
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29.88 g/mol |
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Appearance |
white solid |
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2.013 g/cm3 |
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1438 °C, 1711 K, 2620 °F |
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Solubility in water |
decomposes |
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9.23 |
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Refractive index (nD) |
1.644 [1] |
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Structure |
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Antifluorite (cubic), cF12 |
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Fm3m, No. 225 |
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Tetrahedral (Li+); cubic (O2–) |
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Thermochemistry |
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Std enthalpy of |
-20.01 kJ/g |
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1.8105 J/g K |
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Hazards |
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EU Index |
Not listed |
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Main hazards |
Corrosive, reacts violently with water |
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Non-flammable |
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Related compounds |
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Other anions |
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Other cations |
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Related compounds |
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USES :
Keyword:Nanometer materials
Report :
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Product name |
Lithium oxide |
CAS：12057-24-8 |
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Description |
White powder |
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TEST ITEMS |
TEST RESULTS |
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Li2O |
≥95.0％ |
≥97.26％ |
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Na |
≤0.03％ |
≤0.0031％ |
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Li2CO3 |
≤2.5％ |
≤1.66％ |
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Fe |
≤0.03％ |
≤0.0022％ |
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Ca |
≤0.03％ |
≤0.0066％ |
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Mg |
≤0.02％ |
≤0.0031％ |
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