Home Categories Organic Chemistry 2,6-Di-tert-butylphenol
A3139112

2,6-Di-tert-butylphenol , 98% , 128-39-2

CAS NO.:128-39-2

Empirical Formula: C14H22O

Molecular Weight: 206.32

MDL number: MFCD00008820

EINECS: 204-884-0

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Update time: 2022-07-08

PRODUCT Properties

Melting point: 34-37 °C(lit.)
Boiling point: 253 °C(lit.)
Density  0.91
vapor pressure  <0.01 mm Hg ( 20 °C)
refractive index  1.5312
Flash point: 245 °F
storage temp.  Sealed in dry,2-8°C
solubility  0.003g/l
form  Crystalline Solid
pka 12.16±0.40(Predicted)
color  White to light yellow
Water Solubility  insoluble
FreezingPoint  35.0 to 37.0 ℃
BRN  1841887
Stability: Stable. Incompatible with acid chlorides, acid anhydrides, bases, brass, copper, copper alloys, oxidizing agents.
LogP 4.5 at 24℃
CAS DataBase Reference 128-39-2(CAS DataBase Reference)
NIST Chemistry Reference Phenol, 2,6-bis(1,1-dimethylethyl)-(128-39-2)
EPA Substance Registry System 2,6-Di-tert-butylphenol (128-39-2)

Description and Uses

2,6-Di-tert-butylphenol (2,6-DTBP) serves as the starting material in the production of the most efficient phenolic antioxidants known today and also for the synthesis of 4,4′-dihydroxybiphenyl. The compound is usually synthesised by the alkylation of phenol or of 2-tert-butylphenol (2-TBP) with isobutene. In the presence of aluminium tris-(phenolate) catalyst temperatures between 100 and 125 °C and at pressures up to 25 bar have been employed[1].

Widely used as antioxidant in fuels, lubricants and polymers. Employed as a synthetic intermediate for the production of higher molecular weight phenolic antioxidants. Used as an oxidation inhibitor and stabilizer (e.g. for fuel, oil and gasoline) and also used in plastics and rubber. Also applied as an intermediate and an antioxidant in aviation gasoline.

Safety

Symbol(GHS) 
GHS07,GHS09
Signal word  Warning
Hazard statements  H315-H410
Precautionary statements  P264-P273-P280-P302+P352-P332+P313-P362+P364
Hazard Codes  Xn,N,Xi
Risk Statements  22-51/53-52/53-50/53-38
Safety Statements  26-36-61-29-60
RIDADR  UN 3145 8/PG 3
WGK Germany  2
RTECS  SK8265000
TSCA  Yes
HazardClass  9
PackingGroup  III
HS Code  29071900
Hazardous Substances Data 128-39-2(Hazardous Substances Data)

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