p-tert-Butyltoluene
- 1-Methyl-4-tert-butylbenzene
- 4-tert-Butyltoluene
p-tert-Butyltoluene | |
| |
| Formula | 4-(CH3)C6H4C(CH3)3 |
| Structure | |
| Description | Colorless liquid, aromatic gasoline-like odor. |
| Uses | As a solvent for resins, as a primary intermediate in chemical industry. |
| Registry Numbers and Inventories. | |
| CAS | 98-51-1 |
| EC (EINECS/ELINCS) | 202-675-9 |
| EC Class | flammable, toxic, irritant |
| EC Risk Phrase | R 10 22 23 36/37 |
| EC Safety Phrase | S 26 37 45 |
| RTECS | XS8400000 |
| RTECS class | Human Data; Primary Irritant |
| UN (DOT) | 2667 |
| Beilstein/Gmelin | 2038670 |
| Beilstein Reference | 4-05-00-01097 |
| Swiss Giftliste 1 | G-1339 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C11H16 |
| Formula mass | 148.25 |
| Melting point, °C | -62.5 |
| Boiling point, °C | 192.8 |
| Vapor pressure, mmHg | 0.7 |
| Vapor density (air=1) | 4.62 |
| Saturation Concentration | 920 ppm (0.09%) at 25 C (calculated) |
| Critical temperature | 401 |
| Critical pressure | 26.3 |
| Density | 0.861 g/cm3 |
| Solubility in water | Insoluble |
| Viscosity | 1.25 MPA |
| Refractive index | 1.4912 (13.2 C) |
| Partition coefficient, pKow | 4.23 |
| Heat of vaporization | 52.31 kJ/mol |
| Heat of combustion | -6496 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. |
| Handling | Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Use only in a chemical fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. |
| 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 | 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. |
| 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. A vapor suppressing foam may be used to reduce vapors. |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Incompatibilities | Oxidizing agents. |
| Decomposition | Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 48 | |||
| Autoignition, °C | 510 | |||
| 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. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water. | |||
| Fire potential | This chemical is combustible. | |||
| Hazards | Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion and poison hazard indoors, outdoors or in sewers. | |||
| Combustion products | Fire will produce irritating, corrosive and/or toxic gases. | |||
| NFPA | Health | 4 | ||
| Flammability | 2 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: TWA 10 ppm (60 mg/m3) ST 20 ppm (120 mg/m3) OSHA PEL: TWA 10 ppm (60 mg/m3) IDLH 100 ppm |
| Poison_Class | 4 |
| Exposure effects | May cause liver and kidney damage. |
| Ingestion | Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause central nervous system effects and/or neurological effects. |
| Inhalation | Causes respiratory tract irritation. Vapors may cause dizziness or suffocation. Inhalation of high concentrations may cause pulmonary edema. May produce cardiovascular effects. |
| Skin | Causes skin irritation. |
| Eyes | Causes eye irritation. |
First aid |
|
| Ingestion | Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water. |
| Inhalation | Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask. |
| Skin | Get medical aid. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. |
| Eyes | Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. |
| Transport. | ||
| UN number | 2667 | |
| Response guide | 131 | |
| Hazard class | 6.1 | |
| Packing Group | III | |
| USCG CHRIS Code | BUE | |
| USCG Compatatibility Group | 32 Aromatic hydrocarbons | |
| HS Code | 2902 90 80 | |
| IMO Chemical Code | # | |
| IMO Pollution Category | A@ | |
| IMO Hazard code | P | |