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 Gravity

0.813

Sensitive 

Moisture Sensitive

BRN 

3684968

EPA Substance Registry System

Methanaminium, 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 

Yes

HS Code 

2942.00.5000

HazardClass 

4.3

PackingGroup 

I

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Tetramethylammonium borohydride Usage And Synthesis

Uses

Reactant for:

• Preparation of iridium tetrahydride complexes bearing a tridentate pincer-type bis(phosphino)silyl ligand
• Reduction reactions (reducing agent)

Purification Methods

Recrystallisation 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(16883-45-7)Related Product Information

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