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

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℃

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