(T-4)-Trifluoro[oxybis[methane]]boron

113.87

114.046379

206-532-1

2965

Liquid

29319090

17.07000

1.14240

Clear brownish Liquid, Fuming In Moist Air

1.239 g/mL at 25 °C(lit.)

-14 °C

126-127 °C(lit.)

96 °F

n20/D 1.308(lit.)

Solubility in water: reaction

water-free area

Inhalation-Guinea Pig LCL0: 50 PPM/4 hours

Inflammable in water; flammable dimethyl ether gas in water

21.6%

Reacts violetnly with water

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, including hydrofluoric acid fumes.

Ethers

Highly Flammable

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].

Corrosive

I

4.3

UN 2965 4.3/PG 1

3

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

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

ED8400000

F,C,T

The warehouse is ventilated, low temperature and dry; stored separately from oxidants and water-containing items

Open fire

P223, P231+P232, P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P314, P321, P330, P335+P334, P363, P370+P378, P402+P404, P405, P501

H260

SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.

Interaction of ... /hexafluorisopropylideneaminolithium/ with a range of chloro- and fluoro-derivatives of boron ... during warming to 25 °C tended to be violently exothermic in absence of solvent.|Alkalis metals, calcium oxide. [Note: Hydrolyzes in moist air or hot water to form boric acid, hydrogen fluoride and fluoboric acid.] /Boron trifluoride/|The trihalides react with water, lower alcohols, hydrogen sulfide, alkyl mercaptans, ammonia, primary and secondary amines, phosphine, and arsine, liberating hydrogen halide in each case. /Boron trihalides/|The boron halides react violently with ammonia. /Boron halides/|For more Hazardous Reactivities and Incompatibilities (Complete) data for BORON TRIFLUORIDE DIMETHYL ETHERATE (6 total), please visit the HSDB record page.

NIOSH; Criteria Document: Boron Trifluoride (1976) DHEW Pub. NIOSH 77-122

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, it emits toxic fumes of fluorides. (EPA, 1998)|Corrosives, Flammable - 3rd degree, Reactive - 2nd degree

|Danger|H260 (100%): In contact with water releases flammable gases which may ignite spontaneously [Danger Substances and mixtures which in contact with water, emit flammable gases]|P223, P231+P232, P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P314, P321, P330, P335+P334, P363, P370+P378, P402+P404, P405, and P501|Aggregated GHS information provided by 136 companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Excerpt from ERG Guide 139 [Substances - Water-Reactive (Emitting Flammable and Toxic Gases)]: As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above. 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, 2016)

Excerpt from ERG Guide 139 [Substances - Water-Reactive (Emitting Flammable and Toxic Gases)]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch or walk through spilled material. Stop leak if you can do it without risk. DO NOT GET WATER on spilled substance or inside containers. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. FOR CHLOROSILANES, use AFFF alcohol-resistant medium-expansion foam to reduce vapors. SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Dike for later disposal; do not apply water unless directed to do so. POWDER SPILL: Cover powder spill with plastic sheet or tarp to minimize spreading and keep powder dry. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (ERG, 2016)

For emergency situations, wear a positive pressure, pressure-demand, full facepiece self-contained breathing apparatus (SCBA) or pressure- demand supplied air respirator with escape SCBA and a fully-encapsulating, chemical resistant suit. (EPA, 1998)|Recommendations for respirator selection. Max. concn for use: 10 ppm. Respirator Class(es): Any supplied-air respirator. /Boron trifluoride/|Recommendations for respirator selection. Max. concn for use: 25 ppm. Respirator Class(es): Any supplied-air respirator operated in a continuous-flow mode. Any self-contained breathing apparatus with a full facepiece. Any supplied-air respirator with a full facepiece. /Boron trifluoride/|Recommendations for respirator selection. Condition: Emergency or planned entry into unknown concentrations or IDLH conditions: Respirator Class(es): Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure-mode. Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode. /Boron trifluoride/|Recommendations for respirator selection. Condition: Escape from suddenly occurring respiratory hazards: Respirator Class(es): Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern. Any appropriate escape-type, self-contained breathing apparatus. /Boron trifluoride/|Personnel protection: Wear positive pressure self-contained breathing apparatus. Wear appropriate chemical protective clothing.

Moderate fire risk. Combustible

... May ... explode in moist air ... /Boranes/

If material on fire or involved in fire: Do not extinguish fire unless flow can be stopped. Do not use water. Use graphite, soda ash, powdered sodium chloride, or suitable dry powder.

Environmental considerations: land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents.|Environmental considerations: water spill: Use natural barriers or oil spill control booms to limit spill travel. use natural deep water pockets, excavated lagoons, or sand bag barriers to trap material at bottom.

If material not on fire and not involved in fire: Do not use water. Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Keep material dry.|Personnel protection: Avoid breathing vapors. Keep upwind. Avoid bodily contact with the material. Do not handle broken packages unless wearing appropriate personal protective equipment.

/GUIDE 139: SUBSTANCES - WATER-REACTIVE (Emitting Flammable and Toxic Gases)/ Fire or Explosion: Produce flammable and toxic gases on contact with water. May ignite on contact with water or moist air. Some react vigorously or explosively on contact with water. May be ignited by heat, sparks or flames. May re-ignite after fire is extinguished. Some are transported in highly flammable liquids. Containers may explode when heated. Runoff may create fire or explosion hazard.|/GUIDE 139: SUBSTANCES - WATER-REACTIVE (Emitting Flammable and Toxic Gases)/ Health: Highly toxic: contact with water produces toxic gas, may be fatal if inhaled. Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.|/GUIDE 139: SUBSTANCES - WATER-REACTIVE (Emitting Flammable and Toxic Gases)/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids. Keep unauthorized personnel away. Stay upwind. Keep out of low areas. Ventilate the area before entry.|/GUIDE 139: SUBSTANCES - WATER-REACTIVE (Emitting Flammable and Toxic Gases)/ Protective Clothing: Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection. Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.|For more DOT Emergency Guidelines (Complete) data for BORON TRIFLUORIDE DIMETHYL ETHERATE (8 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

... May produce irritation of the nasal mucous membranes, the respiratory tract, and eyes. /Boron compounds/

Recommended Exposure Limit: Ceiling Value: 1 ppm (3 mg/cu m). /Boron trifluoride/

D003; A waste containing Boron Trifluoride Dimethyl Etherate may (or may not) be characterized a hazardous waste following testing for the reactivity characteristics as prescribed by the Resource Conservation and Recovery Act (RCRA) regulations.

Releases of CERCLA hazardous substances are subject to the release reporting requirement of CERCLA section 103, codified at 40 CFR part 302, in addition to the requirements of 40 CFR part 355. Boron trifluoride dimethyl etherate is an extremely hazardous substance (EHS) subject to reporting requirements when stored in amounts in excess of its threshold planning quantity (TPQ) of 1,000 lbs.

[40 CFR 261.32; U.S. National Archives and Records Administration's Electronic Code of Federal Regulations. Available from: http://www.gpoaccess.gov/ecfr as of December 15, 2004)] D003; A solid waste containing Boron Trifluoride Dimethyl Etherate may become characterized as a hazardous waste when subjected to testing for reactivity as stipulated in 40 CFR 261.23, and if so characterized, must be managed as a hazardous waste.

moderately toxic

Persons with impaired pulmonary function may be at increased risk from exposure /to boron trifluoride/. /Boron trifluoride/

Food and Environmental Agents: Effect on Breast-Feeding: Reported Sign or Symptom in Infant or Effect on Lactation: Fluorides: None. /from Table 7/

This material is highly toxic by inhalation. (EPA, 1998)

Warning: This material is highly toxic by inhalation. Signs and Symptoms of Boron Trifluoride Compound With Methyl Ether Exposure: Acute exposure to boron trifluoride compound with methyl ether may result in strong irritation of the eyes, skin, and respiratory tract. Direct contact may cause dermal or corneal burns. Boron trifluoride itself can cause severe respiratory irritation with chemical pneumonitis and pulmonary edema. Irritation or burns of the esophagus or gastrointestinal tract may occur following ingestion. Neurologic effects may include CNS depression and coma. Emergency Life-Support Procedures: Acute exposure to boron trifluoride compound with methyl ether may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination. Inhalation Exposure: 1. Move victims to fresh air. Emergency personnel should avoid self-exposure to trifluoride compound with methyl ether. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer 100% humidified supplemental oxygen or other respiratory support. 3. Obtain authorization and/or further instructions from the local hospital for performance of other invasive procedures. 4. Rush to a health care facility. Dermal/Eye Exposure: 1. Remove victims from exposure. Emergency personnel should avoid self-exposure to boron trifluoride compound with methyl ether. 2. Evaluate vital signs including pulse and respiratory rate and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer 100% humidified oxygen or other respiratory support. 3. Remove and isolate contaminated clothing as soon as possible. 4. If eye exposure has occurred, flush with lukewarm water for at least 15 minutes. 5. Wash exposed skin areas thoroughly with soap and water. 6. Treat dermal irritation or burns with standard topical therapy. 7. Obtain authorization and/or further instructions from the local hospital for performance of other invasive procedures. 8. Rush to a health care facility. Ingestion Exposure: 1. Evaluate vital signs including pulse and respiratory rate and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer 100% humidified oxygen or other respiratory support. 2. DO NOT induce vomiting or attempt to neutralize. 3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 4. Immediately dilute with water or milk: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Water or milk should be given only if victims are conscious and alert. 5. Rush to a health care facility. (EPA, 1998)

If strong concentrations of boron trifluoride gas get into the eyes, wash eyes immediately with large amounts of water, lifting the lower and upper lids occasionally. Get medical attention immediately. Contact lenses should not be worn when working with this chemical. /Boron trifluoride/|If strong concentrations of boron trifluoride gas contact the skin, immediately flush the contaminated skin with water. If strong concentrations of boron trifluoride gas penetrate through the clothing, remove the clothing immediately and flush the skin with water. If irritation persists after washing, get medical attention. /Boron trifluoride/|If a person breathes in large amounts of boron trifluoride, move the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the affected person warm and at rest. Get medical attention as soon as possible. /Boron trifluoride/|Move the affected person from the hazardous exposure. If the exposed person has been overcome, notify someone else and put into effect the established emergency rescue procedures. Do not become a casualty. Understand the facility's emergency rescue procedures and know the locations of rescue equipment before the need arises. /Boron trifluoride/|For more Antidote and Emergency Treatment (Complete) data for BORON TRIFLUORIDE DIMETHYL ETHERATE (11 total), please visit the HSDB record page.

/HUMAN EXPOSURE STUDIES/ A description of effects on 78 workers exposed from 10 to 15 yr to boron trifluoride, as reported in a USSR abstract, consisted of complaints of dryness and bleeding of nasal mucosa, bleeding gums, dry and scaly skin, and pain in joints. ...No specific... concentrations were reported... and... there was /also/ concurrent exposure to ethylene and isobutyl with no reported concentrations... . /Boron trifluoride/|/HUMAN EXPOSURE STUDIES/ In... manufacturing plant in USA, physical exams initiated in 1974 for small group workers including 7 with present and 6 with past exposures to boron trifluoride or other fluoride, ranging from 1 to 27 yr. Five of the 7 currently exposed, and 3 of 6 with previous exposures showed lower pulmonary function (forced VC and FEV) than predicted for normal population. Lowered pulmonary function was severe in 1, moderate in 3, and minimal in 1 of 7 currently exposed who had average exposure of 13 yr. X-rays were negative, and no urinary fluorine concentrations were above acceptable preshift concentration of 4 mg/L. /Boron trifluoride/|/HUMAN EXPOSURE STUDIES/ /CNS depressant/ effects in man may be seen at concentrations of 5 to 10% in air.|/SIGNS AND SYMPTOMS/ Initial symptoms from ingestion /include/ ... salivation, nausea, abdominal pain, vomiting, and diarrhea. ... The patient shows signs of increased irritability of the nervous system, including paresthesias, a positive Chvostek sign, hyperactive reflexes, and tonic and clonic convulsions. ... Hypocalcemia and hypoglycemia are frequent lab finding. ... Pain in various muscle groups ... blood pressure falls ... due to central vasomotor depression as well as direct toxic action on cardiac muscle. The respiratory center is first stimulated and later depressed. Death ... from either respiratory paralysis or cardiac failure. /Fluoride salts/|For more Human Toxicity Excerpts (Complete) data for BORON TRIFLUORIDE DIMETHYL ETHERATE (7 total), please visit the HSDB record page.

Boron, trifluoro[oxybis[methane]]-, (T-4)-: ACTIVE

Fire Hazards -> Corrosives, Flammable - 3rd degree, Reactive - 2nd degree