2,6-di-tert-Butylphenol

  • 2,6-Di-(tert-butyl)phenol
Formula
2,6-[(CH3)3C]2C6H3OH
Structure
Description
Odorless colorless to light yellow solid or liquid.
Uses
Intermediate, antioxidant.

Registry Numbers and Inventories.
CAS
128-39-2
EC (EINECS/ELINCS)
204-884-0
EC Class
harmful, dangerous for the environment
R 51/53
S 24/25 61
RTECS
SK8265000
RTECS class
Other
UN (DOT)
2811
Beilstein/Gmelin
3835990
Beilstein Reference
4-14-00-02623
Swiss Giftliste 1
G-7348
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C14H22O
Formula mass
206.33
Melting point, °C
34 - 37
Boiling point, °C
251
Vapor pressure, mmHg
<0.1
Density
0.914 g/cm3 (20 C)
Solubility in water
Insoluble
Refractive index
1.5001 (20 C)
pKa/pKb
12.15 (pKa)
Partition coefficient, pKow
4.92
Heat of vaporization
50.8 kJ/mol
Heat of combustion
-8300 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation. Wash clothing before reuse.
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 gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
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.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Bases - acid chlorides - acid anhydrides - oxidizing agents - steel - brass - copper, copper alloys.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
118
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. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. To extinguish fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Poison_Class
-
Exposure effects
   Ingestion
May cause liver damage. Causes gastrointestinal tract irritation.
   Inhalation
Causes respiratory tract irritation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. Get medical aid if irritation or symptoms occur.
   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. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Transport.
UN number
2811
Response guide
Hazard class
6.1
Packing Group
I; II; III
 
USCG CHRIS Code
DBT
 
21 Phenols, Cresols
HS Code
2907 19 00
 
IMO Chemical Code
17
IMO Pollution Category
A
IMO Hazard code
P