Trimethylboron
[CAS# 593-90-8]

Identification

• Name: Trimethylboron
• Synonyms: Trimethylborane
• Molecular Formula: C₃H₉B
• Molecular Weight: 55.91
• CAS Registry Number: 593-90-8
• EC Number: 209-816-3

Properties

• Solubility: Sparingly soluble (15 g/L) (25 ºC), Calc.^*
• Density: 0.559±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: -150 ºC^**
• Boiling point: 21.8 ºC (1 Torr)^***
• Flash point: -44.7±18.7 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** Ebsworth, E. A. V.; Journal of the Chemical Society 1958, P2150-6.

^*** Iyoda, Jun; Bulletin of the Chemical Society of Japan 1959, V32, P304-5.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Flammable gases	Flam. Gas	1	H220
Gases under pressure (compressed)	Press. Gas (Comp.)		H280
Gases under pressure (liquid)	Press. Gas (Liq.)		H280
Pyrophoric liquids	Pyr. Liq.	1	H250
Pyrophoric solids	Pyr. Sol.	1	H250