Lithium tetraborate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Lithium tetraborate | |||||||||||||||
other names |
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Molecular formula | Li 2 B 4 O 7 | |||||||||||||||
Brief description |
white odorless solid |
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properties | ||||||||||||||||
Molar mass | 169.12 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
2.4 g cm −3 |
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Melting point |
930 ° C |
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solubility |
slightly soluble in water (28.9 g l −1 at 20 ° C) |
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safety instructions | ||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Lithium tetraborate is an inorganic chemical compound of lithium from the group of borates and the lithium salt of tetraboric acid, which is only known in the form of its salts (see borax ) .
Extraction and presentation
Lithium tetraborate can be obtained by reacting lithium metaborate with boron trioxide at 250 ° C and high pressure.
properties
Lithium tetraborate is a white, odorless solid that is sparingly soluble in water. It's piezoelectric .
use
Lithium tetraborate and sodium tetraborate are used as disintegrants for X-ray fluorescence analyzes. Lithium tetraborate is also used as an ingredient in the manufacture of glasses , for example for Lindemann glass .
Individual evidence
- ↑ a b c d e data sheet Lithium tetraborate, Puratronic®, 99.998% (metals basis) from AlfaAesar, accessed on April 15, 2015 ( PDF )(JavaScript required) .
- ↑ a b c d data sheet Lithium tetraborate, ≥99.995% trace metals basis from Sigma-Aldrich , accessed on April 15, 2015 ( PDF ).
- ↑ a b Christoph Janiak: Riedel Modern Inorganic Chemistry. Walter de Gruyter, 2012, ISBN 978-3-110-24901-9 , p. 187 ( limited preview in the Google book search).
- ↑ Gerald Routschka: Refractory materials and refractory construction. Vulkan-Verlag GmbH, 2000, ISBN 978-3-410-14922-4 , p. 71 ( limited preview in Google book search).