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Trimethylboron

Trimethylboron chemical structure
CAS Number593-90-8
FormulaB(CH3)3
Mol. Weight55.91 g/mol

What is Trimethylboron?

Trimethylboron is a chemical compound with CAS number 593-90-8 and molecular formula B(CH3)3. It is used in various industrial and research applications.

Applications

Precursor to boron carbide thin films by chemical vapor deposition (CVD).1

Specifications

Linear Formula

B(CH3)3

Molecular Weight

55.91 g/mol

Grade

electronic grade

Assay/Purity

≥98.35%

Impurities

<1 ppm Oxygen (O2)
<1.5% Dimethylethylborane [B(CH3)2C2H5]
<10 ppm Carbon dioxide (CO2)
<10 ppm Nitrogen (N2)
<100 ppm Methane (CH4)
<1000 ppm Trimethylamine (TMA)
<50 ppm Hydrogen (H2)

Boiling Point

−20.2 °C(lit.)

Safety Information

GHS04GHS04
GHS05GHS05
Signal Word

Danger

Hazard Statements

H280-H314

Precautionary Statements

P280-P305 + P351 + P338-P310-P410 + P403

Required PPE

Faceshields, Gloves, Goggles, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US)

Melting Point

−161.5 °C(lit.)

EC Number

209-816-3

WGK Germany

1

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