Triethylaluminium

Triethylaluminium
Skeletal formula of triethylaluminium dimer
Ball-and-stick model of the triethylaluminium dimer molecule
Names
IUPAC name
Triethylalumane
Identifiers
3D model (JSmol)
Abbreviations TEA,[1] TEAl,[2] TEAL[3]
ChemSpider
ECHA InfoCard 100.002.382 Edit this at Wikidata
EC Number
  • 202-619-3
UNII
UN number 3051
  • InChI=1S/3C2H5.Al/c3*1-2;/h3*1H2,2H3; checkY
    Key: VOITXYVAKOUIBA-UHFFFAOYSA-N checkY
  • InChI=1/3C2H5.Al/c3*1-2;/h3*1H2,2H3;/rC6H15Al/c1-4-7(5-2)6-3/h4-6H2,1-3H3
    Key: VOITXYVAKOUIBA-DVVALISXAR
  • CC[Al](CC)CC
  • dimer: CC[Al-](CC)([CH2+]1C)[CH2+](C)[Al-]1(CC)CC
Properties
C12H30Al2
Molar mass 228.335 g·mol−1
Appearance Colorless liquid
Density 0.8324 g/mL at 25 °C
Melting point −46 °C (−51 °F; 227 K)
Boiling point 128 to 130 °C (262 to 266 °F; 401 to 403 K) at 50 mmHg
Reacts
Solubility Ether, hydrocarbons, THF
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 pyrophoric
GHS labelling:
GHS02: FlammableGHS05: Corrosive
Danger
H250, H260, H314
P210, P222, P223, P231+P232, P260, P264, P280, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P335+P334, P363, P370+P378, P402+P404, P405, P422, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propaneInstability 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g. hydrogen peroxideSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
4
3
W
Flash point −18 °C (0 °F; 255 K)
Related compounds
Related compounds
 Trimethylaluminium
Triisobutylaluminium
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)

Triethylaluminium is one of the simplest examples of an organoaluminium compound. Despite its name the compound has the formula Al2(C2H5)6 (abbreviated as Al2Et6 or TEA). This colorless liquid is pyrophoric. It is an industrially important compound, closely related to trimethylaluminium.[4][5]

  1. ^ Mission Status Center, June 2, 2010, 1905 GMT, SpaceflightNow, accessed 2010-06-02, Quotation: "The flanges will link the rocket with ground storage tanks containing liquid oxygen, kerosene fuel, helium, gaserous nitrogen and the first stage ignitor source called triethylaluminum-triethylborane, better known as TEA-TEB."
  2. ^ "Gulbrandsen Chemicals, Metal Alkyls: Triethylaluminum (TEAl)". Gulbrandsen. Archived from the original on December 13, 2017. Retrieved December 12, 2017. Triethylaluminum (TEAl) is a pyrophoric liquid...
  3. ^ Malpass, Dennis B.; Band, Elliot (2012). Introduction to Industrial Polypropylene: Properties, Catalysts Processes. John Wiley & Sons. ISBN 9781118463208.
  4. ^ Krause, Michael J.; Orlandi, Frank; Saurage, Alfred T.; Zietz, Joseph R. (2000). "Aluminum Compounds, Organic". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a01_543. ISBN 978-3527306732.
  5. ^ C. Elschenbroich (2006). Organometallics. VCH. ISBN 978-3-527-29390-2.