Decaborane

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Structural formula
Structural formula of decaborane
General
Surname Decaborane
other names
  • Decabortetradecahydride
  • Dekaboran
Molecular formula W 10 H 14
Brief description

white solid with a bitter or chocolate-like odor

External identifiers / databases
CAS number 17702-41-9
EC number 241-711-8
ECHA InfoCard 100.037.904
PubChem 6328162
Wikidata Q1951971
properties
Molar mass 122.22 g mol −1
Physical state

firmly

density

0.940 g cm −3

Melting point

99-103 ° C

boiling point

213 ° C

Vapor pressure

25 hPa (100 ° C)

solubility
  • sparingly soluble in cold water
  • hydrolyzed in hot water
  • soluble in ethyl acetate, 1-bromopropane, ethyl silicate, benzene, ethanol and carbon tetrachloride
safety instructions
GHS labeling of hazardous substances
02 - Highly / extremely flammable 06 - Toxic or very toxic

danger

H and P phrases H: 228-301-311-330
P: 280-301 + 310-302 + 350-304 + 340-233-210
MAK

Switzerland: 0.05 ml m −3 or 0.25 mg m −3

Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Decaborane is a chemical compound from the borane group .

Extraction and presentation

Along with other boranes, decaborane is formed during the thermal decomposition of diborane .

properties

Decaborane is a colorless solid with a strong odor that is not very air-resistant. It is soluble in organic solvents such as carbon tetrachloride , which should be avoided because such solutions can detonate if vibrated. Decaboran can be used for a wide range of reactions. With Lewis bases such as diethyl sulfide and acetonitrile , it gives compounds of the B 10 H 12 [S (C 2 H 5 ) 2 ] 2 type , from which carboranes can be obtained with ethyne and its derivatives . Decaboran has a monoclinic crystal structure with the space group C 2 / c (space group no. 15) . Template: room group / 15

use

Decaborane is in rocket propellants include, explosives and pyrotechnics and is used as catalyst in the olefin - polymerization used.

Individual evidence

  1. ↑ a b c d e f Entry on Decaboran in the GESTIS substance database of the IFA , accessed on January 8, 2020(JavaScript required) .
  2. ↑ a b c Georg Brauer (ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 792.
  3. ↑ a b c d e f g h i Data sheet Decaborane, 98% at AlfaAesar, accessed on January 27, 2014 ( PDF )(JavaScript required) .
  4. ↑ Swiss Accident Insurance Fund (Suva): Limits - Current MAK and BAT values (search for 17702-41-9 or Decaboran ), accessed on November 2, 2015.
  5. ↑ Roger Blachnik (Ed.): Paperback for chemists and physicists . Volume III: Elements, Inorganic Compounds and Materials, Minerals . founded by Jean d'Ans, Ellen Lax. 4th, revised and revised edition. Springer, Berlin 1998, ISBN 3-540-60035-3 , pp. 316 ( limited preview in Google Book Search).