Lithium metaborate
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Other names
boric acid, lithium salt
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Identifiers | |
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3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.033.287 ![]() |
EC Number |
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
LiBO2 | |
Molar mass | 49.751 g/mol |
Appearance | white hygroscopic monoclinic crystals |
Density | 2.223 g/cm3 |
Melting point | 849 °C (1,560 °F; 1,122 K) |
0.89 g/100 mL (0 °C) 2.57 g/100 mL (20 °C) 11.8 g/100 mL (80 °C) | |
Solubility | soluble in ethanol |
Thermochemistry | |
Heat capacity (C)
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59.8 J/mol K |
Std molar
entropy (S |
51.3 J/mol K |
Std enthalpy of
formation (ΔfH⦵298) |
-1022 kJ/mol |
Std enthalpy of
combustion (ΔcH⦵298) |
33.9 kJ/mol |
Hazards | |
Safety data sheet (SDS) | External MSDS |
NFPA 704 (fire diamond) | ![]()
2
0
0 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
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Infobox references | |
Lithium metaborate (LiBO2) is a chemical compound.
Applications[]
Lithium metaborate or lithium tetraborate (Li2B4O7), or a mixture of both, can be used in sample preparation of various samples for analysis by XRF, AAS, ICP-OES, ICP-AES and ICP-MS.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6c/Flux_btl_lg1.jpg/220px-Flux_btl_lg1.jpg)
Simultaneous determination of parts-per-million level Cr, As, Cd and Pb, and major elements in low level contaminated soils using borate fusion and energy dispersive X-ray fluorescence spectrometry with polarized excitation.[2]
Lithium metaborate dissolves acidic oxides such as SiO2 and Fe2O3, where the stoichiometric ratio of oxygen to cation, y/x in MxOy, is greater than unity. Lithium tetraborate dissolves basic oxides such as CaO, MgO and other oxides of the alkali metals and alkaline earth metals, where y/x ≤ 1. Most oxides are best dissolved in a mixture of the two lithium borate salts, for spectrochemical analysis.[3]
References[]
- Borates
- Lithium compounds
- Inorganic compound stubs