Triethyloxonium tetrafluoroborate

IUPAC Name: Triethyloxidanium tetrafluoroborate (368-39-8)
Synonyms: Triethyloxonium ; Triethyl-oxoniutetrafluoroborate(1-) ; Triethyloxonium tetrafluoroborate ; Meerwein's reagent ;Ttriethyloxonium tetrafluoroborate(1-) ; Triethyloxonium tetrafluoroborate, stab ; Triethyloxonium tetrafluoroborate sol., 1 m in methyl. chl. ; Triethyloxonium tetrafluoroborate, 1.0m solution in dichloromethane
CAS: 368-39-8
MF: C₆H₁₅BF₄O
MW: 189.99
MS:
EINECS: 206-705-1
Product Categories: Organic-metal salt ; API intermediates ; Wittig Reagents ; B (Classes of Boron Compounds) ; Iodonium Sulfonium & Oxonium Compounds ; Oxonium Compounds ; Tetrafluoroborates ; Alkyl Transfer ; C-X Bond Formation (Non-Halogen) ; Synthetic Reagents
Mol File: 368-39-8.mol
Melting point: 96-97°C
Density  1.328 g/mL at 25 °C
Storage temp:  2-8°C
Solubility methylene chloride: 20 mg/mL, clear, colorless
Water Solubility:  REACTS
Sensitive:  Moisture Sensitive
Merck : 5796
BRN : 3598090
Appearance:white to light yellow crystal powder

Triethoxonium fluoroborate (368-39-8) is used as a powerful ethylating agent.

Hazard Codes:  C
Risk Statements:  34-40-14
14:  Triethoxonium fluoroborate (368-39-8) reacts violently with water
34:  Causes burns
40:  Limited evidence of a carcinogenic effect
Safety Statements:  23-24/25-26-36/37/39-45-22
23:  Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer)
24/25:  Avoid contact with skin and eyes
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36/37/39:  Wear suitable protective clothing, gloves and eye/face protection
45:  In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
22: Triethoxonium fluoroborate (368-39-8) is harmful if swallowed .
RIDADR:  UN 3265 8/PG 2
WGK Germany:  2
RTECS : RR4584700
F : 3-10-16-21
Hazard Note:  Corrosive
HazardClass : 4.1
PackingGroup : II
HS Code : 29420000

1.General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.  
Extinguishing Media: Use carbon dioxide or dry chemical.   
2.Spills/Leaks: Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. 
3.Handling: Wash thoroughly after handling. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.  
Storage: Store Triethoxonium fluoroborate (368-39-8)  in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Deep freeze (below -20°C).