Ethylbenzene
- Phenylethane
- Ethylbenzol
- EB
Ethylbenzene | |
| |
| Formula | C6H5C2H5 |
| Structure | |
| Description | Clear, colorless liquid with a characteristic, sweet, gasoline-like, aromatic odor. |
| Uses | Used in the production of synthetic rubber as a solvent or diluent, a component of automotive and aviation fuels, manufacture of cellulose acetate. |
| Registry Numbers and Inventories. | |
| CAS | 100-41-4 |
| EC (EINECS/ELINCS) | 202-849-4 |
| EC Index Number | 601-023-00-4 |
| EC Class | Highly flammable; Harmful |
| EC Risk Phrase | R 11 20 |
| EC Safety Phrase | S 16 24/25 29 |
| RTECS | DA0700000 |
| RTECS class | Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant |
| UN (DOT) | 1175 |
| Merck | 13,3801 |
| Beilstein/Gmelin | 1901871 |
| Beilstein Reference | 4-05-00-00885 |
| RCRA | F003 |
| Swiss Giftliste 1 | G-1165 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C8H10 |
| Formula mass | 106.17 |
| Melting point, °C | -95 |
| Boiling point, °C | 136.2 |
| Vapor pressure, mmHg | 10 (25 C) |
| Vapor density (air=1) | 3.66 |
| Saturation Concentration | 9200 ppm (0.92%) at 20 C; 12600 ppm (1.26%) at 25 C (calculated) |
| Evaporization number | 0.84 (n-butyl acetate = 1); 8.8 (diethyl ether = 1) |
| Critical temperature | 344 |
| Critical pressure | 35.5 |
| Density | 0.867 g/cm3 (20 C) |
| Solubility in water | 150 mg/L |
| Viscosity | 0.678 cp (20 C) |
| Surface tension | 29.2 g/s2 (20 C) |
| Refractive index | 1.4932 (20 C) |
| Dipole moment | 0.24 D |
| Dielectric constant | 2.3 (30 C) |
| Partition coefficient, pKow | 3.15 |
| Heat of fusion | 9.2 kJ/mol |
| Heat of vaporization | 42.3 kJ/mol |
| Heat of combustion | -4568 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. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| WHMIS | B2 D2A D2B |
| Handling | Wash thoroughly after handling. Use with adequate ventilation. Ground and bond containers when transferring material. 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. Avoid ingestion and inhalation. 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 and clothing to prevent skin exposure. Clothing: Wear appropriate protective gloves and 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. |
| Small spills/leaks | Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition. A vapor suppressing foam may be used to reduce vapors. Water spray may reduce vapor but may not prevent ignition in closed spaces. |
| Disposal code | 1 |
| Stability | Stable under normal temperatures and pressures. |
| Incompatibilities | Oxidizing agents. |
| Decomposition | Carbon monoxide, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 15 | |||
| Autoignition, °C | 430 | |||
| Upper exp. limit, % | 7.8 | |||
| Lower exp. limit, % | 1.0 | |||
| Fire fighting | Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may spread fire. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use foam, dry chemical, or carbon dioxide. | |||
| Fire potential | Flammable liquid and vapor. | |||
| Hazards | Vapors are heavier than air and may travel to a source of ignition and flash back. Liquid floats on water and may travel to a source of ignition and spread fire. | |||
| Combustion products | Irritating vapors are generated when heated. | |||
| NFPA | Health | 2 | ||
| Flammability | 3 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | OSHA PEL: TWA 100 ppm (435 mg/m3) NIOSH REL: TWA 100 ppm (435 mg/m3) ST 125 ppm (545 mg/m3) NIOSH IDLH: 800 ppm LEL |
| Carcinogin | G-A3, I-2B |
| Poison_Class | 4 |
| Exposure effects | Chronic inhalation may cause effects similar to those of acute inhalation. |
| Ingestion | May cause irritation of the digestive tract. May cause central nervous system depression, characterized by excitement, followed by headache, dizziness, drowsiness, and nausea. Advanced stages may cause collapse, unconsciousness, coma and possible death due to respiratory failure. Aspiration of material into the lungs may cause chemical pneumonitis, which may be fatal. |
| Inhalation | Inhalation of high concentrations may cause central nervous system effects characterized by headache, dizziness, unconsciousness and coma. Causes respiratory tract irritation. Vapors may cause dizziness or suffocation. |
| Skin | Causes skin irritation. Prolonged and/or repeated contact may cause irritation and/or dermatitis. May be absorbed through the skin. Contact with the liquid may cause erythema, exfoliation and vesiculation. |
| Eyes | Causes moderate eye irritation. Vapors may cause eye irritation. |
First aid |
|
| Ingestion | Do NOT induce vomiting. 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. |
| Eyes | Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Transport. | ||
| UN number | 1175 | |
| Response guide | 129 | |
| Hazard class | 3 | |
| Packing Group | II | |
| USCG CHRIS Code | ETB | |
| USCG Compatatibility Group | 32 Aromatic hydrocarbons | |
| HS Code | 2902 60 00 | |
| Std. Transport # | 4909163 | |
| IMO Pollution Category | B | |
| IMO Hazard code | P | |