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Boron trifluoride etherate

Basic information Toxicity Chemical Properties Usage Preparation Safety Related Supplier

Boron trifluoride etherate Basic information

Product Name:
Boron trifluoride etherate
CAS:
109-63-7
MF:
C4H10BF3O
MW:
141.93
EINECS:
203-689-8
Mol File:
109-63-7.mol
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Boron trifluoride etherate Chemical Properties

Melting point:
−58 °C(lit.)
Boiling point:
126-129 °C(lit.)
Density 
1.15 g/mL(lit.)
vapor density 
4.9 (vs air)
vapor pressure 
4.2 mm Hg ( 20 °C)
refractive index 
n20/D 1.344(lit.)
Flash point:
118 °F
storage temp. 
2-8°C
solubility 
Miscible with ether and alcohol.
form 
liquid
Specific Gravity
1.126 (20/4℃)
color 
brown
explosive limit
5.1-18.2%(V)
Water Solubility 
Reacts
Hydrolytic Sensitivity
7: reacts slowly with moisture/water
Sensitive 
Moisture Sensitive
Merck 
14,1350
BRN 
3909607
Stability:
Stable. Highly flammable. May form explosive peroxides in contact with air or oxygen. Reacts exothermically with water to form extremely flammable diethyl ether and toxic, corrosive boron trifluoride hydrates. Also incompatible with bases, amines, alkali metals.
InChIKey
MZTVMRUDEFSYGQ-UHFFFAOYSA-N
CAS DataBase Reference
109-63-7(CAS DataBase Reference)
NIST Chemistry Reference
Boron trifluoride etherate(109-63-7)
EPA Substance Registry System
Boron, trifluoro[1,1'-oxybis[ethane]]-, (T-4)- (109-63-7)
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Safety Information

Hazard Codes 
T,C
Risk Statements 
10-14-20/22-35-48/23-34-14/15-23-22
Safety Statements 
16-23-26-36/37/39-45-8-28A-43
RIDADR 
UN 2604 8/PG 1
WGK Germany 
3
10
Autoignition Temperature
185 °C DIN 51794
TSCA 
Yes
HazardClass 
8
PackingGroup 
I
HS Code 
29319090
Hazardous Substances Data
109-63-7(Hazardous Substances Data)

MSDS

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Boron trifluoride etherate Usage And Synthesis

Toxicity

See boron trifluoride.

Chemical Properties

Colorless to brown fuming liquid.

Usage

  • A catalyst for synthetic rubber, resin, paints, and so on.
  • A catalyst for alkylation and condensation reaction in organic synthesis such as polybutadiene, polyoxymethylene, coumarone, synthetic resin, etc.
  • A basic ingredient of producing high quality borohydride fuel and extracting the isotope of boron.
  • A curing agent for epoxy resin.
  • A catalyst of organic synthesis (acetylation, alkylation, polymerization, dehydration and condensation reaction) and a common analytical reagent.

Preparation

  • Boron trifluoride gas, produced by heating the sulfuric acid, calcium fluoride (fluorite) and boric acid together, reacts with ether boron to produce the trifluoride etherate crude product, thus we can refine it to get the finished product. The consumption of raw material is as followed: boric acid (≥98%), 560kg/t; calcium fluoride(≥90%) 1150kg/t; fuming sulfuric acid (104.5%), 4100kg/t; ether(≥99%) 725kg/t.
  • In absorption method shown in the chemical equations as followed, diethyl ether absorb boron trifluoride gas, produced by heating the sulfuric acid, calcium fluoride (fluorite) and boric acid together, to produce trifluoride etherate crude complex compound by vacuum distillation.
                 3H2SO4+2H33BO3+3CaF2→2BF3+3CaSO4+6H2O
                 BF3+(C2H5)2O→(C2H5)2O•BF3

Chemical Properties

Colorless to brown fuming liquid

Chemical Properties

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

Physical properties

Fuming liquid; stable at ambient temperatures but hydrolyzed on exposure to moist air; density 1.125 g/mL; refractive index 1.348; solidifies at -60.4°C; boils at 125.7°C; flash point (open cup) 147°F (68.8°C); decomposes in water.

Uses

Catalyst in acetylation, alkylation, polymerization, dehydration, and condensation reactions.

Preparation

Boron trifluoride etherate is prepared by the reaction of vapors of boron trifluoride with that of anhydrous diethyl ether:
BF3 (g) + (C2H5)2O (g) → (C2H5)2O?BF3.

General Description

Boron trifluoride etherate is a fuming liquid. Boron trifluoride etherate may be corrosive to skin, eyes and mucous membranes. Boron trifluoride etherate may be toxic by inhalation. Upon exposure to water Boron trifluoride etherate may emit flammable and corrosive vapors. Boron trifluoride etherate is used as a catalyst in chemical reactions.

Air & Water Reactions

Highly flammable. Fuming liquid, immediately hydrolyzed by moisture in air to form hydrogen fluoride [Merck 11th ed. 1989].

Reactivity Profile

Boron trifluoride diethyl ether complex is a stable, highly flammable, colourless to brown fuming, corrosive liquid with a sharp pungent odour. It forms explosive peroxides in contact with air or oxygen. It reacts exothermically with water to form extremely flammable diethyl ether and toxic, corrosive boron trifluoride hydrates. The chemical is incompatible with bases, amines, and alkali metals. It immediately gets hydrolysed by moisture in air to form hydrogen fluoride. Boron trifluoride diethyl ether has applications in chemical laboratory as a catalyst in chemical reactions.

Hazard

The compound is highly toxic by inhalation. Skin contact causes burns.

Health Hazard

May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Potential Exposure

Used as a catalyst.

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.

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Boron trifluoride etherateSupplierMore

Runtai chemical nantong co. LTD Gold
Tel:
0513-81903511;0513-84819588
Email:
sales@runtaint.com;sales@runtaint.com
Products Intro:
Product Name:Boron trifluoride etherate
CAS:109-63-7
J & K SCIENTIFIC LTD. Gold
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Products Intro:
Product Name:Boron trifluoride diethyl etherate, 48% BF3, J&KSeal
CAS:109-63-7
Purity:98.0%(W) Package:100ML;500ML
Shanghai TongYuan Chemical Co., Ltd. Gold
Tel:
021-69182866-
Email:
tongyuanchem@126.com
Products Intro:
CAS:109-63-7
Shanghai Aladdin Bio-Chem Technology Co.,LTD Gold
Tel:
021-20337333-801
Email:
market@aladdin-e.com
Products Intro:
Product Name:Boron trifluoride diethyl etherate
CAS:109-63-7
Purity:BF3 46.5% Package:89.1RMB/500ML
Shandong Ono Chemical Co., Ltd. Gold
Tel:
0539-6362799(To 20)
Email:
68188893@qq.com
Products Intro:
CAS:109-63-7
Purity:99% Package:25g;100g;250g;500g;25Kg
Basic information Toxicity Chemical Properties Usage Preparation Safety Related Supplier