Trimethylborane
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Basic information
- CAS
593-90-8- Standard SMILES
CB(C)C- InChIKey
WXRGABKACDFXMG-UHFFFAOYSA-N- Molecular formula
- C3H9B
- Average molar mass
- 55.92 g/mol
- Monoisotopic mass
- 56.0797305
Names & identifiers
- Preferred name
- Trimethylborane
- IUPAC
- trimethylborane
- English name
- Trimethylboron
- Molecular formula
- C3H9B
- Molecular weight
- 55.91
Names & synonyms
TrimethylboraneTrimethylboron593-90-8Borane, trimethyl-MFCD00058727TRIMETHYLBORON-D9;Trimethylborondelecgrcolorlessgas;TRIMETHYLBORON-D9, 99 ATOM % D, ELECTRON;99atom%delectronicgrade;Deuterated TrimethylboronEINECS 209-816-3Trimethylboron, elec. gr.SCHEMBL49393(CH3)3BDTXSID90208038AKOS025295508
Show more names
C3H9Btrimethylborine99.9-B, PURATREMTrimethyl boraneBorane,trimethyl-Trimethylboron,98%trimethylborane(3)TRIMETHYLBORANE,98%
InChI=1/C3H9B/c1-4(2)3/h1-3HNS00034150Trimethylboron, electronic grade, >=98.35%Q7842211
Database identifiers
- CAS
593-90-8- PubChem CID
- 68979
- DTXSID
DTXSID90208038- EC Number
- 209-816-3
- Nikkaji
- J2.700F
Properties
Computed structural propertiesFilling in
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 4
- Formal charge
- 0
- Complexity
- 8
Experimental & physicochemical properties
Physical DescriptionColorless gas with a repulsive odor; [Matheson Tri-Gas MSDS]
Physicochemical properties
- Melting point
- -161 · -161,5°C
- Boiling point
- -20 · -20,2°C
- Density
- 0 · 0,625 g/cm3
- form
- liquid
- Specific Heat Capacity
- 1.58 J/ · Cp(gas): 1.58 J/(g·K), at 25℃
- Symbol(GHS)
- 2 · GHS02,GHS04,GHS05
- Signal word
- Danger
- Hazard statements
- 220 · H220-H280-H314
- Precautionary statements
- 210 · P210-P260-P264-P280-P377-P381-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P305+P351+P338-P403-P405-P501
- Hazard Codes
- F,C
- Risk Statements
- 11 · 11-17-34
- Safety Statements
- 9 · 9-16-23-45-43-36/37/39-26-7
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
Danger
H220 (52.7%): Extremely flammable gas [Danger Flammable gases]；H250 (17.1%): Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids]；H280 (82.9%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]；H314 (100%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
P203, P210, P222, P231, P233, P260, P264, P280, P301+P330+P331, P302+P335+P334, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P370+P378, P377, P381, P403, P405, P410+P403, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 129 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Hazard information
Hazards Summary
Pyrophoric; Reacts violently with water; May cause thermal burns on reaction with air or water; Sudden release of compressed gas may cause frostbite; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract; [Matheson Tri-Gas MSDS] See Diborane and Tri-n-butylborane.
Hazard Classes and CategoriesFlam. Gas 1 (52.7%)；Pyr. Sol. 1 (17.1%)；Press. Gas (Liq.) (82.9%)；Skin Corr. 1B (100%)
Safety & protection
Exposure Control and Personal Protection
Chemistry & industry
Uses & manufacturing
UsesSemiconductor Manufacturing [Category: Industry]
Applications
UsesPrecursor to boron carbide thin films by chemical vapor deposition (CVD).1
Upstream & downstream products
Downstream products
Suppliers
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Related reactions
3 records
Compound notes
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