Triethyl borate

  • Boric acid, triethyl ester
Formula
(CH3CH2O)3B
Structure
Description
Clear, colorless liquid.

Registry Numbers and Inventories.
CAS
150-46-9
EC (EINECS/ELINCS)
205-760-9
EC Class
highly flammable
RTECS
ED5075000
RTECS class
Primary Irritant
UN (DOT)
1176
Beilstein/Gmelin
1699052
Beilstein Reference
4-01-00-01365
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H15BO3
Formula mass
145.99
Melting point, °C
-84.8
Boiling point, °C
117
Vapor density (air=1)
5.03
Density
0.887 g/cm3 (0 C)
Solubility in water
Decomposes
Refractive index
1.3749 (20 C)

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Flammables-area.
Handling
Wash thoroughly after handling. Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Take precautionary measures against static discharges.
Protection
Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear a chemical apron.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. Use a spark-proof tool.
Stability
No data.
Incompatibilities
Strong oxidizing agents, strong acids, moist air or water.
Decomposition
Carbon monoxide, carbon dioxide, oxides of boron.

Fire.
Flash Point,°C
11.1
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Highly flammable.
Hazards
Vapors can travel to a source of ignition and flash back.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
4
 
 
Reactivity
0
 

Health.
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause irritation of the digestive tract.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1176
Response guide
Hazard class
3
Packing Group
II
 
HS Code
2920 90 85