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Triethylborane information


Triethylborane
Triethylborane
Triethylborane
Ball-and-stick model of triethylborane
Ball-and-stick model of triethylborane
Names
Preferred IUPAC name
Triethylborane
Other names
Triethylborine, triethylboron
Identifiers
CAS Number
  • 97-94-9 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 7079 checkY
ECHA InfoCard 100.002.383 Edit this at Wikidata
EC Number
  • 202-620-9
PubChem CID
  • 7357
UNII
  • Z3S980Z4P3 checkY
CompTox Dashboard (EPA)
  • DTXSID2052653 Edit this at Wikidata
InChI
  • InChI=1S/C6H15B/c1-4-7(5-2)6-3/h4-6H2,1-3H3 checkY
    Key: LALRXNPLTWZJIJ-UHFFFAOYSA-N checkY
  • InChI=1/C6H15B/c1-4-7(5-2)6-3/h4-6H2,1-3H3
    Key: LALRXNPLTWZJIJ-UHFFFAOYAU
SMILES
  • B(CC)(CC)CC
Properties
Chemical formula
(CH3CH2)3B
Molar mass 98.00 g/mol
Appearance Colorless liquid
Density 0.677 g/cm3
Melting point −93 °C (−135 °F; 180 K)
Boiling point 95 °C (203 °F; 368 K)
Solubility in water
Not applicable; highly reactive
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
Spontaneously flammable in air; causes burns
GHS labelling:
Pictograms
GHS02: FlammableGHS05: CorrosiveGHS06: ToxicGHS08: Health hazard
Signal word
Danger
Hazard statements
H225, H250, H301, H314, H330, H360
Precautionary statements
P201, P202, P210, P222, P233, P240, P241, P242, P243, P260, P264, P270, P271, P280, P281, P284, P301+P310, P301+P330+P331, P302+P334, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P320, P321, P330, P363, P370+P378, P403+P233, P403+P235, 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 4: Readily capable of detonation or explosive decomposition at normal temperatures and pressures. E.g. nitroglycerinSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
4
4
W
Flash point < −20 °C (−4 °F; 253 K)
Autoignition
temperature
−20 °C (−4 °F; 253 K)
Safety data sheet (SDS) External SDS
Related compounds
Related compounds
  • Tetraethyllead
  • Diborane
  • Sodium tetraethylborate
  • Trimethylborane
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 ?)
Infobox references

Triethylborane (TEB), also called triethylboron, is an organoborane (a compound with a B–C bond). It is a colorless pyrophoric liquid. Its chemical formula is (CH3CH2)3B or (C2H5)3B, abbreviated Et3B. It is soluble in organic solvents tetrahydrofuran and hexane.

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Triethylborane

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Triethylborane (TEB), also called triethylboron, is an organoborane (a compound with a B–C bond). It is a colorless pyrophoric liquid. Its chemical formula...

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Pyrophoricity

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(for liquids and solids). Examples are organolithium compounds and triethylborane. Pyrophoric materials are often water-reactive as well and will ignite...

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Triethylaluminium

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engine ignitor. The SpaceX Falcon 9 rocket uses a triethylaluminium-triethylborane mixture as a first-stage ignitor. Triethylaluminium thickened with polyisobutylene...

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Boron

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for doping but rather for plasma etching of metals and their oxides. Triethylborane is also injected into vapor deposition reactors as a boron source. Examples...

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Triskelion

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end-of-life symbol in the Irish healthcare system. The boric acid and triethylborane molecules are triskelion-shaped as seen in the images. The molecular...

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Organoboron chemistry

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cyclodimerisation. NHCs and boranes form stable NHC-borane adducts. Triethylborane adducts can be synthesised directly from the imidazolium salt and lithium...

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Trifluoromethylation

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been developed as replacement. One particular combination is CF3I / triethylborane Other reagents that generate the CF3 radical are sodium trifluoromethanesulfinate...

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Hypergolic propellant

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Ariane 5 EPS; Draco thrusters used by the SpaceX Dragon spacecraft. Triethylborane/triethylaluminium (TEA-TEB) + liquid oxygen – used during the ignition...

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Autoignition temperature

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34 °C (93 °F) [A][B] Silane 21 °C (70 °F) or below Strontium 1,075 °C (1,967 °F) 1075±120[C] Tin 940 °C (1,720 °F) 940±25[C] Triethylborane −20 °C (−4 °F)...

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Lithium hydride

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lithium aluminium hydride (Li[AlH4]) and lithium borohydride (Li[BH4]). Triethylborane reacts to give superhydride (Li[BH(CH2CH3)3]). Lithium hydride (LiH)...

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Lithium triethylborohydride

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hydride. LiBHEt3 is prepared by the reaction of lithium hydride (LiH) and triethylborane (Et3B) in tetrahydrofuran (THF): LiH + Et3B → LiEt3BH The resulting...

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Falcon 9

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000 lbf) of thrust. They use a pyrophoric mixture of triethylaluminum-triethylborane (TEA-TEB) as an engine igniter. The booster stage has 9 engines, arranged...

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Organometallic chemistry

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such as tributyltin hydride (Bu3SnH), organoborane compounds such as triethylborane (Et3B), and organoaluminium compounds such as trimethylaluminium (Me3Al)...

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Lithium sulfide

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conveniently conducted in anhydrous ammonia. 2 Li + S → Li2S The THF-soluble triethylborane adduct of lithium sulfide can be generated using superhydride. Lithium...

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Flammability limit

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321 °C Toluene 1.2–1.27 6.75–7.1 IB 4.4 °C 0.24 @ 4.1% 480 °C; 535 °C Triethylborane −20 °C −20 °C Trimethylamine IA Flammable gas Trinitrobenzene IA Turpentine...

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Sodium triethylborohydride

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been prepared by treating a hot toluene slurry of sodium hydride with triethylborane. The trimethylborohydride analogue, which is assumed to be structurally...

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Reformatsky reaction

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Reformatsky reaction an iodolactam is coupled with an aldehyde with triethylborane in toluene at -78 °C. Aldol reaction Blaise reaction Claisen condensation...

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TEB

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railway in Norway Transit Explore Bus, a proposed straddling bus concept Triethylborane, a chemical used to ignite rocket motors and jet afterburners, and to...

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Inorganic chemistry

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(C5H5)Fe(CO)2CH3, ferrocene Fe(C5H5)2, molybdenum hexacarbonyl Mo(CO)6, triethylborane Et3B, Tris(dibenzylideneacetone)dipalladium(0) Pd2(dba)3) Clusters can...

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Trimethylborane

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Wilhelm V. (1973). "A convenient preparation of trimethylborane and triethylborane". Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry...

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Homoleptic

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lead tetrabutyl tin trimethylaluminium dimethylmercury Diethylzinc triethylborane Chromate Permanganate Ferroin bis(terpyridine)iron(II) IUPAC, Compendium...

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Falcon Heavy

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the engine has dual redundant pyrophoric igniters (Triethylaluminium-Triethylborane) (TEA-TEB). The interstage, which connects the upper and lower stage...

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Pyrotechnic initiator

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pyrophoric igniters can be used which burst into flame in contact with air. Triethylborane/TEA-TEB was used as an igniter for the Lockheed SR-71 jet engines, the...

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Boronic acid

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process. First, diethylzinc and triethyl borate reacted to produce triethylborane. This compound then oxidized in air to form ethylboronic acid. Several...

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