Trimethoxyboroxine
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Trimethoxyboroxine | |||||||||||||||
Molecular formula | C 3 H 9 B 3 O 6 | |||||||||||||||
Brief description |
colorless liquid |
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properties | ||||||||||||||||
Molar mass | 173.53 g mol −1 | |||||||||||||||
Physical state |
liquid |
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density |
1.195 g cm −3 (25 ° C) |
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Melting point |
10 ° C |
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boiling point |
130 ° C |
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Vapor pressure |
40 hPa (25 ° C) |
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solubility |
reacts with water |
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Refractive index |
1.4 (20 ° C) |
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safety instructions | ||||||||||||||||
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Toxicological data | ||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
Trimethoxyboroxine is a chemical compound from the boroxine group .
Extraction and presentation
Trimethoxyboroxine can be obtained by reacting boron trioxide with boric acid trimethyl ester .
In this way, the compound was first synthesized in 1951 by Goubeau and Keller. The compound can also be prepared by reacting boron trioxide with a mixture of trimethyl borate and methanol.
properties
Trimethoxyboroxine is a colorless liquid that reacts with water.
use
Trimethoxyboroxine can be used as an intermediate in the manufacture of other chemical compounds (for example dimethoxyborane ). It is also used as a fire extinguishing substance on burning metals.
Individual evidence
- ↑ a b c d e f g h i j k data sheet trimethoxyboroxine, 95% from Sigma-Aldrich , accessed on March 17, 2018 ( PDF ).
- ↑ a b c data sheet Trimethoxyboroxine from AlfaAesar, accessed on March 17, 2018 ( PDF )(JavaScript required) .
- ↑ Leopold Gmelin: Boron Compounds: Boron-Oxygen Compounds 1 . Springer-Verlag, 1977, ISBN 3-540-93339-5 , pp. 156 ( limited preview in Google Book search).
- ↑ Google Patents: US2927124A - Preparation of trimethoxyboroxine - Google Patents , accessed March 17, 2018.
- ↑ VK Jain: Fire Safety In Buildings . Taylor & Francis, 2007, ISBN 978-81-224-1035-8 , pp. 323 ( limited preview in Google Book search).