Aluminum sec -butanolate
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Aluminum sec -butanolate | |||||||||||||||
other names |
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Molecular formula | C 12 H 27 AlO 3 | |||||||||||||||
Brief description |
Flammable, yellowish liquid with an alcohol-like odor |
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properties | ||||||||||||||||
Molar mass | 246.33 g · mol -1 | |||||||||||||||
Physical state |
Liquid |
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boiling point | ||||||||||||||||
Vapor pressure | ||||||||||||||||
solubility |
Soluble in ethanol , isopropyl alcohol and toluene |
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Refractive index |
1.4390 |
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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 |
Aluminum sec- butanolate (ASB) is the alcoholate salt made from aluminum and sec- butanol .
Extraction and presentation
Aluminum sec- butanolate can be produced by the reaction of aluminum and sec- butanol. It is a common production method for alcoholates. Either pure aluminum or aluminum dross can be used as the substrate. In the latter case, a purification, e.g. B. by means of vacuum distillation . The reason for this is the fact that aluminum dross contains a wide variety of impurities.
properties
Aluminum sec -butanolate is a flammable, slightly yellowish, oily liquid. Vapors can form explosive mixtures when heated above its flash point (26 ° C with closed cup). It is hygroscopic , sensitive to air and moisture and decomposes in water. The container should always be closed and kept in a dry and well-ventilated area. Aluminum sec -butanolate is not compatible with strong oxidants, acids, metals or halogens. Acute and chronic health hazards are possible. The lower explosion limit (LEL) is 1.7 % by volume and the upper explosion limit (UEL) is 9.8 % by volume . The ignition temperature is 406 ° C , temperature class T2.
use
Uses include the production of photosensitive alumina gel films; microporous, crystalline aluminophosphate AlPO-41 and pure mesoporous aluminum materials by hydrolysis with aluminum sec -butanolate as starting material. It is also an active catalyst and reduces aldehydes and ketones .
Individual evidence
- ↑ a b c d e f g h i j k Entry on aluminum tri-sec-butanolate in the GESTIS substance database of the IFA , accessed on March 28, 2018(JavaScript required) .
- ↑ a b c data sheet aluminum tri-sec-butoxide from Sigma-Aldrich , accessed on March 28, 2018 ( PDF ).
- ↑ a b c d data sheet aluminum sec-butoxide from AlfaAesar, accessed on March 28, 2018 ( PDF )(JavaScript required) .
- ↑ S.-J. Yoo et al .: Synthesis and characterization of high purity aluminum sec-butoxide from aluminum dross . In: Korean Journal of Chemical Engineering . tape 26 , 2009, p. 281-284 , doi : 10.1007 / s11814-009-0048-3 .
- ↑ G. Zhao et al .: Preparation of Photosensitive Al 2 O 3 Gel Films and Their Application to Fine-Patterning . In: Kobunshi Ronbunshu . tape 53 , 1996, pp. 253-259 , doi : 10.1295 / coron . 53.253 .
- ↑ HW Clark et al .: Synthesis and characterization of AlPO-41 in a mixed solvent system . In: Microporous Materials . tape 6 , 1996, pp. 115-124 , doi : 10.1016 / 0927-6513 (95) 00084-4 .
- ^ F. Vaudry et al .: Synthesis of Pure Alumina Mesoporous Materials . In: Chemistry of Materials . tape 8 , 1996, pp. 1451-1464 , doi : 10.1021 / cm9600337 .
- ↑ CJ Serna et al .: Hydrolysis of aluminum-tri- (sec-butoxide) in ionic and nonionic media . In: Clays and Clay Minerals . tape 25 , 1977, pp. 384-391 , doi : 10.1346 / CCMN.1977.0250603 .