Boron trifluoride dimethyl etherate Property

Melting point:

-14 °C

Boiling point:

126-127 °C(lit.)

Density 

1.239 g/mL at 25 °C(lit.)

vapor pressure 

2.99hPa at 20℃

refractive index 

n20/D 1.308(lit.)

Flash point:

96 °F

storage temp. 

water-free area

form 

Liquid, Fuming In Moist Air

color 

Clear brownish

Specific Gravity

1.225

explosive limit

21.6%

Water Solubility 

reacts

BRN 

3613739

EPA Substance Registry System

Boron trifluoride compound with methyl ether (1:1) (353-42-4)

Safety

Hazard Codes 

F,C,T

Risk Statements 

14/15-34-48/23-20/22

Safety Statements 

16-26-28-36/37/39-45-8-43-28A-23

RIDADR 

UN 2965 4.3/PG 1

WGK Germany 

3

RTECS 

ED8400000

F 

10

Autoignition Temperature

455 °F

HazardClass 

4.3

PackingGroup 

I

HS Code 

29319090

Hazardous Substances Data

353-42-4(Hazardous Substances Data)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H260In contact with water releases flammable gases which may ignite spontaneously

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H330Fatal if inhaled

H335May cause respiratory irritation

H373May cause damage to organs through prolonged or repeated exposure

Precautionary statements

P231+P232Handle under inert gas. Protect from moisture.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Boron trifluoride dimethyl etherate Chemical Properties,Usage,Production

Description

Boron trifluoride etherates:(compounded with methyl ether) is moisture-sensitive, corrosive, flammable liquid. Molecular weight=113.9;Boiling point=126-127℃; Freezing/Melting point 5214℃. Hazard Identification (based on NFPA-704 MRating System): (dimethyl etherate/UN 2965) Health 4,Flammability 4, Reactivity 1 .
(compounded with ethyl ether) is a moisture-sensitive, corrosive, flammable liquid. Molecular weight=141.9;Boiling point=126℃; Freezing/Melting point=2 58℃;Flash point=64℃ (oc). Hazard Identification (based onNFPA-704 M Rating System) (methyl ether): Health 3,Flammability 3, Reactivity 1 . Decomposes in water.(methanol complex in excess methanol) HazardIdentification (based on NFPA-704 M Rating System):Health 3, Flammability 4, Reactivity 1.

Chemical Properties

clear brownish liquid, fuming in moist air

Chemical Properties

Boron trifluoride etherates: (compounded with methyl ether) is moisture-sensitive, corrosive, flammable liquid.

Uses

Reactant or reagent involved in:

• Deconvoluting the chemical reaction kinetics of platinum-silver ligand exchange
• Synthesis of neurogenic ganglioside LLG-3 from starfish via glycosylation reactions
• Synthesis of peloruside via lactonization and relay ring-closing metathesis cyclization
• FRET for monitoring Pd-catalyzed nucleophilic allylic substitution reactions
• Single molecuel imaging of fluorophore-tagged palldium(II) complexes
• β-elimination and rearrangement reactions for synthesis of exocyclic vinyl ethers

General Description

A fuming liquid. Corrosive to skin, eyes and mucous membranes. May be toxic by inhalation. Used as a catalyst in chemical reactions.

Air & Water Reactions

Highly flammable. In moist air forms dense white pungent fumes, corrosive to skin, avoid inhalation [Merck 11th ed. 1989]. Upon exposure to water may emit flammable and corrosive vapors.

Reactivity Profile

Boron trifluoride dimethyl etherate is a flammable, corrosive, and toxic liquid, moisture-sensitive. Emits toxic fluoride fumes when heated to decomposition [Lewis, 3rd ed., 1993, p. 189].

Health Hazard

Boron trifluoride dimethyl etherate is highly toxic by inhalation.

Fire Hazard

Fire may produce irritating or poisonous gases. Flammable/combustible material which may be ignited by heat spark or flame. Vapors may travel to a source of ignition and flash back. Container may explode in heat of fire. Vapor explosion hazard indoors, outdoors, or in sewer. Runoff to sewer may create fire or explosion hazard. When heated to decomposition, Boron trifluoride dimethyl etherate emits toxic fumes of fluorides.

Flammability and Explosibility

Contact with water liberates highly flammable gases

Potential Exposure

Used as a catalyst.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. If victim is conscious, administer water ormilk. Do not induce vomiting. Medical observation isrecommended for 24
48 h after breathing overexposure, aspulmonary edema may be delayed. As first aid for pulmonaryedema,a doctor or authorized paramedic may consideradministering a corticosteroid spray.

storage

Color Code—Red: Flammability Hazard: Storein a flammable liquid storage area or approved cabinetaway from ignition sources and corrosive and reactivematerials. Before entering confined space where thesechemicals may be present, check to make sure that anexplosive concentration does not exist. Store in tightlyclosed containers in a cool, well-ventilated area. Metalcontainers involving the transfer of this chemical shouldbe grounded and bonded. Where possible, automaticallypump liquid from drums or other storage containers toprocess containers. Drums must be equipped with selfclosing valves, pressure vacuum bungs, and flame arresters.Use only nonsparking tools and equipment, especiallywhen opening and closing containers of this chemical.Sources of ignition, such as smoking and open flames, areprohibited where this chemical is used, handled, or storedin a manner that could create a potential fire or explosionhazard.

Shipping

Diethyl: UN2604 Boron trifluoride diethyl etherate, Hazard class: 8; Labels: 8—Corrosive material, 3—Flammable liquid. Dimethyl: UN2965 Boron trifluoride dimethyl etherate, Hazard class: 4.3; Labels: 4.3— Dangerous when wet, 8—Corrosive material, 3— Flammable liquid.

Incompatibilities

Reacts with air forming corrosive hydrogen fluoride vapors. Incompatible with oxidizers (may cause fire and explosion), water, steam or heat, forming corrosive and flammable vapors. Peroxide containing etherate reacts explosively with aluminum lithium hydride, magnesium tetrahydroaluminate. Mixtures with phenol react explosively with 1,3-butadiene. Presumed to form explosive peroxides.