| Product Identification | Back to Contents | 【Product Name】
2,4-Di-tert-butylphenol | 【Synonyms】
2,4-Bis(tert-butyl)phenol
2,4-Di-tert-butylhydroxybenzene
Antioxidant No. 33
Phenol, 2,4-bis(1,1-dimethylethyl)-
Prodox 146 | 【CAS】
96-76-4 | 【Formula】
C14H22O | 【Molecular Weight】
206.33 | 【EINECS】
202-532-0 | 【RTECS】
SK8260000 | 【RTECS Class】
Other | 【Beilstein/Gmelin】
1910383 | 【Beilstein Reference】
4-06-00-03493 | 【EC Class】
irritant, dangerous for the environment |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Light yellow mass. | 【Solubility in water】
Slightly soluble. | 【Melting Point】
53 - 56 | 【Boiling Point】
265 | 【Vapor Pressure】
72 (121 C) | 【Density】
0.887 g/cm3 (20 C) | 【pKa/pKb】
11.56 (pKa) | 【Partition Coefficient】
5.33 | 【Heat Of Vaporization】
283.30 kJ/mol | 【Heat Of Combustion】
-8277 kJ/mol | 【Usage】
Antioxidant. | 【Refractive Index】
1.508 (20 C) |
| First Aid Measures | Back to Contents | 【Ingestion】
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately. | 【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 immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. | 【Handling】
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. |
| Hazards Identification | Back to Contents | 【Ingestion】
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. | 【Inhalation】
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. | 【Skin】
May cause skin irritation. | 【Eyes】
May cause eye irritation. | 【Hazards】
Contact with metals may evolve flammable hydrogen gas. | 【EC Risk Phrase】
R 36/38 51/53 | 【EC Safety Phrase】
S 26 36 61 | 【UN (DOT)】
2811 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal 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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure. | 【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. | 【Poison Class】
4 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
129 | 【Autoignition】
330 | 【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 | Back to Contents | 【Small spills/leaks】
Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Disposal Code】
3 | 【Incompatibilities】
Oxidizing agents. | 【Stability】
Stable under normal temperatures and pressures. | 【Decomposition】
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, acrid smoke and fumes. | 【Combustion Products】
Fire may produce irritating, corrosive and/or toxic gases. |
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