BORON TRIFLUORIDE DIETHYL ETHERATE

Diamond	Hazard	Value	Description
2 3 2 W	Health	3	Can cause serious or permanent injury.
	Flammability	2	Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur.
	Instability	2	Readily undergoes violent chemical changes at elevated temperatures and pressures.
	Special	W	Reacts violently or explosively with water.

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

• Highly Flammable
• Known Catalytic Activity
• Water-Reactive
• Air-Reactive

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

Excerpt from 132 [Flammable Liquids - Corrosive]:

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 the ground and collect in low or confined areas (sewers, basements, tanks, etc.). Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids will float on water. (ERG, 2020)

Excerpt from 132 [Flammable Liquids - Corrosive]:

May cause toxic effects if inhaled or ingested. 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 asphyxiation. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2020)

BORON TRIFLUORIDE DIETHYL ETHERATE is a flammable, corrosive, moisture-sensitive liquid. When heated to decomposition it emits toxic and corrosive fluoride fumes. Reduction with lithium aluminum hydride in the attempt to prepare diborane caused an explosion [Chem. Eng. News, 1967, 45 (28), p. 7; 45 (21), p. 51].

• Ethers
• Fluoride Salts, Soluble
• Acids, Weak

Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below.

• Mineral-Based & Clay-Based Absorbents
• Sand
• Dirt/Earth

Excerpt from 132 [Flammable Liquids - Corrosive]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.

SPILL: Increase the immediate precautionary measure distance, in the downwind direction, as necessary.

FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2020)

Excerpt from 132 [Flammable Liquids - Corrosive]:

Some of these materials may react violently with water.

SMALL FIRE: Dry chemical, CO2, water spray or alcohol-resistant foam.

LARGE FIRE: Water spray, fog or alcohol-resistant foam. If it can be done safely, move undamaged containers away from the area around the fire. Dike runoff from fire control for later disposal. Do not get water inside containers.

FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2020)

Excerpt from 132 [Flammable Liquids - Corrosive]:

ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb with earth, sand or other non-combustible material. For hydrazine, absorb with DRY sand or inert absorbent (vermiculite or absorbent pads). Use clean, non-sparking tools to collect absorbed material.

LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2020)

Excerpt from ERG Guide 132 [Flammable Liquids - Corrosive]:

Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE. Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2020)

Normalized Breakthrough Times (in Minutes)

Chemical	CAS Number	State	QS	QC	SL	C3	TF	TP	RC	TK	RF
Boron fluoride ethyl ether	109-63-7	Liquid					>480	>480		>480
Boron trifluoride diethyl etherate	109-63-7	Liquid					>480	>480		>480
Boron trifluoride etherate	109-63-7	Liquid					>480	>480		>480

Special Warning from DuPont: Tychem® and Tyvek® fabrics should not be used around heat, flames, sparks or in potentially flammable or explosive environments. Only...

(DuPont, 2023)

Excerpt from 132 [Flammable Liquids - Corrosive]:

Call 911 or emergency medical service. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air if it can be done safely. Give artificial respiration if victim is not breathing. Do not perform mouth-to-mouth resuscitation if victim ingested or inhaled the substance; wash face and mouth before giving artificial respiration. Use a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. Keep victim calm and warm. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. (ERG, 2020)

• BORANE, TRIFLUORO-, COMPOUND WITH 1,1'-OXYBIS[ETHANE] (1:1)
• BORON FLUORIDE (BF3), COMPOUND WITH ETHYL ETHER (1:1)
• BORON FLUORIDE DIETHYL ETHER COMPLEX
• BORON FLUORIDE DIETHYL ETHERATE
• BORON FLUORIDE ETHERATE
• BORON FLUORIDE MONOETHERATE
• BORON FLUORIDE-DIETHYL ETHER COMPOUND
• BORON FLUORIDE-ETHYL ETHER COMPLEX
• BORON FLUORIDE-ETHYL ETHERATE
• BORON TRIFLUORIDE DIETHYL ETHERATE
• BORON TRIFLUORIDE ETHERATE
• BORON TRIFLUORIDE ETHERATE (1:1)
• BORON TRIFLUORIDE ETHYL ETHERATE (1:1)
• BORON TRIFLUORIDE MONOETHERATE
• BORON TRIFLUORIDE-DIETHYL ETHER (1:1)
• BORON TRIFLUORIDE-DIETHYL ETHER 1:1 COMPLEX
• BORON TRIFLUORIDE-DIETHYL ETHER COMPLEX
• BORON TRIFLUORIDE-DIETHYL ETHER COMPLEX (1:1)
• BORON TRIFLUORIDE-DIETHYL ETHERATE
• BORON TRIFLUORIDE-ETHER COMPLEX
• BORON TRIFLUORIDE-ETHYL ETHER
• BORON TRIFLUORIDE-ETHYL ETHER (1:1)
• BORON TRIFLUORIDE-ETHYL ETHER COMPLEX
• BORON TRIFLUORIDE-ETHYL ETHERATE
• DIETHYL ETHER COMPOUND WITH BORON TRIFLUORIDE
• DIETHYL ETHER TRIFLUOROBORANE COMPLEX
• (DIETHYL ETHER)TRIFLUOROBORANE
• (DIETHYL ETHER)TRIFLUOROBORON
• DIETHYL ETHER-TRIFLUOROBORANE (1:1)
• ETHANE, 1,1'-OXYBIS-, COMPOUND WITH TRIFLUOROBORANE (1:1)
• ETHYL ETHER, COMPOUND WITH BF3 (1:1)
• ETHYL ETHER, COMPOUND WITH BORON FLUORIDE (BF3) (1:1)
• ETHYL ETHER-BORON TRIFLUORIDE COMPLEX
• TRIFLUORO(DIETHYL ETHER)BORON
• TRIFLUOROBORANE DIETHYL ETHERATE
• TRIFLUOROBORANE-1,1'-OXYBIS[ETHANE] (1:1)
• TRIFLUOROBORON ETHERATE
• TRIFLUOROBORON-DIETHYL ETHER (1:1)