Lithium metasilicate

Lithium metasilicate  Names

IUPAC name

Lithium metasilicate

Identifiers

CAS Number

* 10102-24-6 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 162106396

ECHA InfoCard | 100.030.232
EC Number |

* 233-270-5

PubChem CID

* 66243

UNII |

* 5QDO50LGBD Y

CompTox Dashboard (EPA)

* DTXSID30904264

InChI

* InChI=1S/2Li.O3Si/c;;1-4(2)3/q2*+1;-2

Key: PAZHGORSDKKUPI-UHFFFAOYSA-N

SMILES

* [Li+].[Li+].[O-][Si](=O)[O-]

Properties

Chemical formula

| Li2SiO3
Molar mass | 89.566 g/mol
Appearance  | colorless crystals
Density | 2.52 g/cm3
Melting point | 1,201 °C (2,194 °F; 1,474 K)

Solubility in water

| insoluble

Refractive index (nD)

| 1.584
Structure

Crystal structure

| orthorhombic
Thermochemistry

Heat capacity (C)

| 99.1 J/mol K

Std molar
entropy (S⦵298)

| 79.8 J/mol K

Std enthalpy of
formation (ΔfH⦵298)

| −1648 kJ/mol

Gibbs free energy (ΔfG⦵)

| 28 kJ/mol

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Lithium metasilicate is an ionic compound with the formula Li2SiO3

## Preparation

[edit]

Lithium metasilicate is prepared by the reaction of lithium carbonate and silicon dioxide at temperatures between 515 and 565 °C.[1]

## Applications

[edit]

The melting of lithium metasilicate is used for the calibration of thermocouples.[2]

## References

[edit]

1. ^ Tang, Tao; Zhang, Zhi; Meng, Jian-Bo; Luo, De-Li (December 2009). "Synthesis and characterization of lithium silicate powders". Fusion Engineering and Design. 84 (12): 2124–2130\. Bibcode:2009FusED..84.2124T. doi:10.1016/j.fusengdes.2009.02.017.
2. ^ Biggar, Gordon M. (June 1972). "Diopside, lithium metasilicate, and the 1968 temperature scale". Mineralogical Magazine. 38 (298): 768–770\. Bibcode:1972MinM...38..768B. doi:10.1180/minmag.1972.038.298.16. S2CID 129422457.

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Lithium compounds (list)

Inorganic (list)|

* Li2
* LiAlCl4
* Li1+xAlxGe2−x(PO4)3
* LiAlH4
* LiAlO2
* LiAl1+xTi2−x(PO4)3
* LiAs
* LiAsF6
* Li3AsO4
* LiAt
* Li[AuCl4]
* LiB(C2O4)2
* LiB(C6F5)4
* LiWF6
* LiBF4
* LiBH4
* LiBO2
* LiB3O5
* Li2B4O7
* LiAsF6
* Li2SnF6
* Li2TiF6
* Li2ZrF6
* Li2B4O7·5H2O
* LiBSi2
* LiBr
* LiBr·2H2O
* LiBrO
* LiBrO2
* LiBrO3
* LiBrO4
* Li2C2
* LiCF3SO3
* CH3CH(OH)COOLi
* LiC2H2ClO2
* LiC2H3IO2
* Li(CH3)2N
* LiCHO2
* LiCH3O
* LiC2H5O
* LiCN
* Li2CN2
* LiCNO
* Li2CO3
* Li2C2O4
* LiCl
* LiCl·H2O
* LiClO
* LiFO
* LiClO2
* LiClO3
* LiClO4
* LiCoO2
* Li2CrO4
* Li2CrO4·2H2O
* Li2Cr2O7
* CsLiB6O10
* LiD
* LiF
* Li2F
* LiF4Al
* Li3F6Al
* FLiBe
* LiFePO4
* FLiNaK
* LiGaH4
* Li2GeF6
* Li2GeO3
* LiGe2(PO4)3
* LiH
* LiH2AsO4
* Li2HAsO4
* LiHCO3
* Li3H(CO3)2
* LiH2PO3
* LiH2PO4
* LiHSO3
* LiHSO4
* LiHe
* LiI
* LiIO
* LiIO2
* LiIO3
* LiIO4
* Li2IrO3
* Li7La3Zr2O12
* LiMn2O4
* Li2MoO4
* Li0.9Mo6O17
* LiN3
* Li3N
* LiNH2
* Li2NH
* LiNO2
* LiNO3
* LiNO3·H2O
* Li2N2O2
* LiNa
* Li2NaPO3
* LiNaNO2
* LiNbO3
* Li2NbO3
* LiO−
* LiO2
* LiO3
* Li2O
* Li2O2
* LiOH
* Li3P
* LiPF6
* Li3PO4
* Li2HPO3
* Li2HPO4
* Li3PO3
* Li3PO4
* Li2Po
* Li2PtO3
* Li2RuO3
* Li2S
* LiSCN
* LiSH
* LiSO3F
* Li2SO3
* Li2SO4
* Li[SbF6]
* Li2Se
* Li2SeO3
* Li2SeO4
* LiSi
* Li2SiF6
* Li4SiO4
* Li2SiO3
* Li2Si2O5
* LiTaO3
* Li2Te
* LiTe3
* Li2TeO3
* Li2TeO4
* Li2TiO3
* Li4Ti5O12
* LiTi2(PO4)3
* LiVO3·2H2O
* Li3V2(PO4)3
* Li2WO4
* LiYF4
* Neodymium-doped
* LiZr2(PO4)3
* Li2ZrO3

Organic (soaps)|

* Hemolithin (extraterrestrial protein)
* Organolithium reagents
* Gilman reagent
* CH3COOLi
* C4H6LiNO4
* LiC2F6NO4S2
* LiN(SiMe3)2
* Li3C6H5O7
* C5H5Li
* LiN(C3H7)2
* (C6H5)2PLi
* C18H35LiO3
* C6H13Li
* C4H9Li
* CH3CHLiCH2CH3
* (CH3)3CLi
* C12H28BLi
* CH3Li
* Li+C10H−8
* C5H11Li
* C5H3LiN2O4
* C6H5Li
* LiC2CH3
* LiO2C(CH2)16CH3
* C4H5LiO4
* LiEt3BH
* LiOC(CH3)3
* C9H18LiN
* LiC2H3 Vinyllithium
* LiC
11H
23COO

Minerals|

* Amblygonite
* Berezanskite
* Brannockite
* Cryolithionite
* Darapiosite
* Darrellhenryite
* Elbaite
* Fluorine Elbaite
* Fluor-liddicoatite
* Emeleusite
* Eucryptite LiAlSiO4
* Faizievite
* Hectorite
* Hsianghualite
* Jadarite LiNaSiB3O7OH
* Keatite Li(AlSi2O6)
* Kunzite
* Lavinskyite
* Lepidolite
* Lithiophilite LiMnPO4
* Lithiophosphate Li3PO4
* Manandonite
* Manganoneptunite
* Nambulite
* Neptunite
* Olympite
* Petalite LiAlSi4O10
* Pezzottaite Cs(Be2Li)Al2Si6O18
* Rossmanite
* Saliotite
* Sogdianite
* Spodumene LiAl(SiO3)2
* Sugilite
* Tiptopite
* Tourmaline
* Triphylite LiFePO4
* Zabuyelite Li2CO3
* Zektzerite
* Zinnwaldite

Hypothetical|

* LixBey
* HLiHe+
* LiFHeO
* LiHe2
* (HeO)(LiF)2
* La2⁄3–xLi3xTiO3He

Other Li-related|

* Aluminium–lithium alloys
* Heteroatom-promoted lateral lithiation
* LB buffer
* Lithium atom
* Lithium medication
* LiNixCoyAlzO2
* LiNixMnyCozO2
* Lithium soap
* Lithium Triangle
* Lucifer yellow
* Magnesium–lithium alloys
* NASICON
* Environmentally friendly red light flare

*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
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