Lithium oxide | Yunnan Titan New Materials Technology Co.,Ltd

Mô tả

Keywords:Oxide

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.

Lithium oxide
IUPAC name[hide] Lithium oxide
Other names[hide] Kickerite
Identifiers
CAS number	12057-24-8 Y
PubChem	166630
ChemSpider	145811 Y
RTECS number	OJ6360000
Jmol-3D images	Image 1
Properties
Molecular formula	Li2O
Molar mass	29.88 g/mol
Appearance	white solid
Density	2.013 g/cm3
Melting point	1438 °C, 1711 K, 2620 °F
Solubility in water	decomposes 6.67 g/100 mL (0 °C) 10.02 g/100 mL (100 °C)
log P	9.23
Refractive index (nD)	1.644 [1]
Structure
Crystal structure	Antifluorite (cubic), cF12
Space group	Fm3m, No. 225
Coordination geometry	Tetrahedral (Li+); cubic (O2–)
Thermochemistry
Std enthalpy of formation ΔfHo298	-20.01 kJ/g
Specific heat capacity, C	1.8105 J/g K
Hazards
EU Index	Not listed
Main hazards	Corrosive, reacts violently with water
Flash point	Non-flammable
Related compounds
Other anions	Lithium sulfide
Other cations	Sodium oxide Potassium oxide Rubidium oxide Caesium oxide
Related lithium oxides	Lithium peroxide Lithium superoxide
Related compounds	Lithium hydroxide
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

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Phiếu kiểm nghiệm

Product name	Lithium oxide	CAS：12057-24-8
Description	White powder
TEST ITEMS		TEST RESULTS
Li2O		≥95.0％	≥97.26％
Na		≤0.03％	≤0.0031％
Li2CO3		≤2.5％	≤1.66％
Fe		≤0.03％	≤0.0022％
Ca		≤0.03％	≤0.0066％
Mg		≤0.02％	≤0.0031％