o-Chlorostyrene
- 2-Chlorostyrene
- 1-Chloro-2-ethenylbenzene
o-Chlorostyrene | |
| |
| Formula | C8H7Cl |
| Structure | |
| Description | Clear yellow liquid. |
| Uses | o-Chlorostyrene is used in the manufacture of polychlorostyrene which is a clear, colorless plastic with good foaming, heat distortion and flame-retardant properties. |
| Registry Numbers and Inventories. | |
| CAS | 2039-87-4 |
| EC (EINECS/ELINCS) | 218-026-8 |
| EC Risk Phrase | R 36/37/38 |
| EC Safety Phrase | S 26 36 |
| RTECS | WL4160000 |
| RTECS class | Other |
| UN (DOT) | 1993 |
| Beilstein/Gmelin | 2038863 |
| Beilstein Reference | 4-05-00-01345 |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Properties. | |
| Formula | C8H7Cl |
| Formula mass | 138.60 |
| Melting point, °C | -63.2 |
| Boiling point, °C | 188.7 |
| Vapor pressure, mmHg | 1 |
| Vapor density (air=1) | 4.7 |
| Density | 1.10001 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Refractive index | 1.56487 (20 C) |
| Partition coefficient, pKow | 3.58 |
| Hazards and Protection. | |
| Storage | Keep away from sources of ignition. Do not store in direct sunlight. Store in a tightly closed container. Flammables-area. Refrigerator (approx 4 C). |
| Handling | Wash thoroughly after handling. Use with adequate ventilation. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid breathing dust, vapor, mist, or gas. 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 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. |
| Small spills/leaks | Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. 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 under normal temperatures and pressures. May discolor on exposure to light. |
| Incompatibilities | Oxidizing agents, acids, bases, halogens. |
| Decomposition | Hydrogen chloride, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 58 | |||
| 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. 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 compound 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 hazard indoors, outdoors or in sewers. | |||
| Combustion products | Fire may produce irritating, corrosive and/or toxic gases. | |||
| NFPA | Health | 1 | ||
| Flammability | 2 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: TWA 50 ppm (285 mg/m3) ST 75 ppm (428 mg/m3) |
| Exposure effects | Effects may be delayed. |
| Ingestion | May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause cardiac disturbances. Ingestion of large amounts may cause CNS depression. |
| Inhalation | May cause respiratory tract irritation. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. May cause cardiac abnormalities. Inhalation at high concentrations may cause CNS depression and asphixiation. May cause burning sensation in the chest. |
| Skin | May cause irritation and dermatitis. May cause cyanosis of the extremities. |
| Eyes | May cause eye irritation. May cause chemical conjunctivitis and corneal damage. |
First aid |
|
| 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 breathing is difficult, give oxygen. Get medical aid. 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. 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. |
| Transport. | ||
| UN number | 1993 | |
| Response guide | 128 | |
| Hazard class | 3 | |
| Packing Group | I; II; III | |
| USCG CHRIS Code | CLF | |
| USCG Compatatibility Group | 36 Halogenated hydrocarbons | |