Boron trifluoride dimethyl etherate

  • Boron trifluoride compound with methyl ether
  • Dimethyl ether- boron trifluoride
Formula
C2H6O.BF3
Structure
Description
A fuming liquid.
Uses
A multistage exchange-distillation of boron trifluoride-dimethyl ether complex is used in boron isotope production for use in breeder reactor control rods.

Registry Numbers and Inventories.
CAS
353-42-4
EC (EINECS/ELINCS)
206-532-1
EC Class
highly flammable, corrosive, toxic, dangerous for the environment
R 15 20/22 34 48/23 52
S 6.3 26 36/37/39 45 61
RTECS
ED8400000
RTECS class
Other
UN (DOT)
2965
Beilstein/Gmelin
3613739
Beilstein Reference
4-01-00-01245
Swiss Giftliste 1
G-9846
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C2H6BF3O
Formula mass
113.88
Melting point, °C
-14
Boiling point, °C
126
Vapor pressure, mmHg
0.9 (0 C)
Vapor density (air=1)
3.93
Density
1.239 g/cm3 (20 C)
Solubility in water
Decomposes
Viscosity
1.65 cp (25 C)
Surface tension
30.03 g/s2 (21 C)
Refractive index
1.302 (20 C)
Heat of vaporization
88.34 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a tightly closed container. Keep under a nitrogen blanket. Keep away from water. Flammables-area. Do not store in metal containers.
Handling
Wash thoroughly after handling. Wash hands before eating. Use only in a well ventilated area. Do not allow water to get into the container because of violent reaction. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Do not allow contact with water. This product may be under pressure; cool before opening. Discard contaminated shoes. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Keep from contact with moist air and steam.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin. Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. Do not expose spill to water. A vapor suppressing foam may be used to reduce vapors.
Stability
Combines vigorously or explosively with water.
Incompatibilities
Acids, bases, alcohols, alkali metals, strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide, hydrogen fluoride, oxides of boron.

Fire.
Flash Point,°C
62-63
Autoignition, °C
235
Upper exp. limit, %
21.6
Lower exp. limit, %
6.4
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Water Reactive. Material will react with water and may release a flammable and/or toxic gas. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. May ignite or explode on contact with steam or moist air. Extinguishing media: Use water spray to cool fire-exposed containers. Water may be ineffective. DO NOT USE WATER! Do NOT use straight streams of water. Contact professional fire-fighters immediately.
Fire potential
Flammable/combustible material which may be ignited by heat spark or flame.
Hazards
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.
Combustion products
When heated to decomposition it emits toxic fumes of fluorides.
Health
3
 
Flammability
2
 
 
Reactivity
2
 
 
Special
W

Health.
Poison_Class
2
Exposure effects
Prolonged absorption may cause anorexia, weight loss, vomiting, mild diarrhea, skin rash, alopecia and anemia.
   Ingestion
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns.
   Inhalation
May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation. Causes chemical burns to the respiratory tract. Vapors may cause dizziness or suffocation.
   Skin
Causes skin burns.
   Eyes
Causes eye burns. May cause irreversible eye injury.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
   Eyes
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).

Transport.
UN number
2965
Response guide
Hazard class
4.3
Packing Group
I
 
HS Code
2942 00 00
 
Std. Transport #
4916319