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Tetramethylammonium borohydride

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Tetramethylammonium borohydride Basic information
Product Name:Tetramethylammonium borohydride
Synonyms:Ammonium, tetramethyl-, tetrahydroborate(1-);Methanaminium, N,N,N-trimethyl-, tetrahydroborate(1-);Nsc164901;Tetra-methyl ammonium boron hydride;Tetramethylammonium tetrahydroborate(1-);Tetramethylammonium borohydride,TMAB;TetraMethylaMMoniuM borohydride 95%;Tetramethylammonium Borohydride 
CAS:16883-45-7
MF:C4H16BN
MW:88.99
EINECS:240-917-5
Product Categories:Ammonium Polyhalides, etc. (Quaternary);B (Classes of Boron Compounds);metal hydrides;Quaternary Ammonium Compounds;Reduction;Synthetic Organic Chemistry;Tetrahydroborates
Mol File:16883-45-7.mol
Tetramethylammonium borohydride Structure
Tetramethylammonium borohydride Chemical Properties
Melting point 150°C (dec.)
density 0,813 g/cm3
storage temp. 2-8°C
Water Solubility almost transparency in Water
form crystal
color white
Specific Gravity0.813
Sensitive Moisture Sensitive
BRN 3684968
InChI1S/C4H12N.BH4/c1-5(2,3)4;/h1-4H3;1H4/q+1;-1
InChIKeyLSSMEJCYZMCNIN-UHFFFAOYSA-N
SMILES[BH4-].C[N+](C)(C)C
EPA Substance Registry SystemMethanaminium, N,N,N-trimethyl-, tetrahydroborate(1-) (16883-45-7)
Safety Information
Hazard Codes F,T,Xi
Risk Statements 15-25-36/38-36/37/38
Safety Statements 26-36/37/39-43-45-36
RIDADR UN 3134 4.3/PG 2
WGK Germany 3
RTECS BS8310000
TSCA TSCA listed
HS Code 2942.00.5000
HazardClass 4.3
PackingGroup I
Storage Class4.3 - Hazardous materials which set free flammable gases upon contact with water
Hazard ClassificationsAcute Tox. 3 Oral
Eye Irrit. 2
Skin Irrit. 2
Water-react 2
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
Tetramethylammonium borohydride Usage And Synthesis
UsesReactant for:
  • Preparation of iridium tetrahydride complexes bearing a tridentate pincer-type bis(phosphino)silyl ligand
  • Reduction reactions (reducing agent)
reaction suitabilityreagent type: reductant
Purification MethodsRecrystallisation of the borohydride from H2O three times yields ca 94% pure compound. Dry in high vacuum at 100o for 3hours. The solubility in H2O is 48% (20o), 61% (40o), and in EtOH 0.5% (25o) and MeCN 0.4% (25o). It decomposes slowly in a vacuum at 150o, but rapidly at 250o. The rate of hydrolysis of Me4N.BH4 (5.8M) in H2O at 40o is constant over a period of 100hours at 0.04% of original wt/hour. The rate decreases to 0.02%/hour in the presence of Me4NOH (5% of the wt of Me4N.BH4). [Banus et al. J Am Chem Soc 74 2346 1952, Beilstein 4 IV 148.]
Tetramethylammonium borohydride Preparation Products And Raw materials
Tag:Tetramethylammonium borohydride(16883-45-7) Related Product Information
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