Product Identification
【Product Name】2-tert-Butyl-4-methylphenol
【Synonyms】2-tert-Butyl-p-cresol ；2-叔丁基-4-甲基苯酚
【CAS】2409-55-4
【Formula】C11H16O
【Molecular Weight】164.25
【EINECS】219-314-6
【RTECS】7000000
【RTECS Class】Tumorigen; Mutagen; Primary Irritant
【Beilstein/Gmelin】1817645
【Beilstein Reference】4-06-00-03397
【EC Class】irritant

Physical and Chemical Properties
【Appearance】White to light yellow, crystalline powder.
【Solubility in water】Insoluble
【Melting Point】49~52℃
【Boiling Point】244℃
【Vapor Pressure】.03
【Density】0.961 g/cm3 (20℃)
【Heat Of Vaporization】63.02 kJ/mol
【Heat Of Combustion】-6308 kJ/mol
【Usage】Chemical intermediate for aldehyde condensates (rubber antioxidants, for 2,2'-methylenebis(4-methyl-6-t-butylphenol), with sulfur dichloride for rubber antioxidants, for a benzotriazole uv light stabilizer, for 6-(5-chlorobenzotriazole) deriv, for diazo derivatives.
【Vapor Density】5.7
【Refractive Index】1.5155 (20℃)

First Aid Measures
【Ingestion】Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
【Handling】Use only in a well ventilated area. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.

Hazards Identification
【Ingestion】Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
【Inhalation】Causes respiratory tract irritation.
【Skin】Causes skin irritation.
【Eyes】Causes eye irritation.
【Hazards】Contact with metals may evolve flammable hydrogen gas.
【EC Risk Phrase】R 34
【EC Safety Phrase】S 26 36/37/39 45
【UN (DOT)】2811

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles 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 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.
【Poison Class】4

Fire Fighting Measures
【Flash Point】105℃
【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. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures
【Small spills/leaks】Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
【Disposal Code】3
【Stability】Stable at room temperature in closed containers under normal storage and handling conditions.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.

Transport Information
【UN Number】2811
【Hazard Class】6.1
【Packing Group】I; II; III
【HS Code】2907 19 00