Hexachlorobutadiene
- Hexachloro-1,3-butadiene
- Perchlorobutadiene
- Hexachlorobuta-1,3-diene
Hexachlorobutadiene | |
| |
| Formula | Cl2C=CCl=CCl=CCl2 |
| Structure | |
| Description | A colorless liquid with a mild odor. |
| Uses | Solvent for elastomers, heat-transfer liq, transformer and hydraulic fluid, wash liquor for removing c4 and higher hydrocarbons, fungicide. |
| Registry Numbers and Inventories. | |
| CAS | 87-68-3 |
| EC (EINECS/ELINCS) | 201-765-5 |
| EC Risk Phrase | R 23/24/25 40 |
| EC Safety Phrase | S 36/37/39 45 |
| RTECS | EJ0700000 |
| RTECS class | Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant |
| UN (DOT) | 2279 |
| Merck | 13,4697 |
| Beilstein/Gmelin | 1766570 |
| Beilstein Reference | 4-01-00-00988 |
| RCRA | U128 |
| Swiss Giftliste 1 | G-1679 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| Japan ENCS (MITI) | Listed |
| Properties. | |
| Formula | C4Cl6 |
| Formula mass | 260.76 |
| Melting point, °C | -21 |
| Boiling point, °C | 210 |
| Vapor pressure, mmHg | 0.1 (25 C) |
| Vapor density (air=1) | 8.99 |
| Critical temperature | 157-172 |
| Critical pressure | 28 |
| Density | 1.6825 g/cm3 (20 C) |
| Solubility in water | Insoluble |
| Viscosity | 2.45 cp (38 C) |
| Surface tension | 35.5 g/s2 (30 C) |
| Refractive index | 1.556 (20 C) |
| Partition coefficient, pKow | 4.78 |
| Heat of vaporization | 44.8 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage. |
| Handling | All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood. |
| Protection | Wear appropriate protective gloves, clothing and goggles. |
| Respirators | Wear positive pressure self-contained breathing apparatus (SCBA). |
| Small spills/leaks | Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. |
| Stability | No data. |
| Incompatibilities | Can react vigorously with oxidizing materials Reacts to form an explosive product with bromine perchlorate. |
| Decomposition | When heated to decomposition it emits very toxic fumes of chlorine cl-. |
| Fire. | ||||
| Flash Point,°C | 92 | |||
| Autoignition, °C | 610 | |||
| Upper exp. limit, % | 15.7 | |||
| Fire fighting | Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. Use alcohol foam, dry chemical or carbon dioxide. | |||
| Fire potential | Nonflammable. | |||
| Combustion products | They contain highly toxic and irritating chloride fumes. | |||
| NFPA | Health | 3 | ||
| Flammability | 1 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | TLV (as TWA): 0.02 ppm; 0.21 mg/m3 A3 (skin) (ACGIH 1997). NIOSH REL: Ca TWA 0.02 ppm (0.24 mg/m3) skin See Appendix A NIOSH IDLH: Potential occupational carcinogen |
| Poison_Class | 3 |
| Exposure effects | Abnormally low blood pressure has been reported. Nervous function disorders and CNS depression may occur. Soft tissue anomalies and central nervous system developmental abnormalities have occurred in experimental animals. <br>Post-implantation mortality and fetotoxicity have been reported in experimental animals. <br>No data were available to assess the potential effects of exposure to this agent during lactation. |
| Inhalation | Dyspnea, chronic bronchitis, and congestion and hemorrhage in the lungs may occur. |
| Skin | Hemorrhagic and necrotic skin lesions may occur. |
| Eyes | See Inhalation. |
First aid |
|
| Ingestion | DO NOT INDUCE VOMITING. Corrosive chemicals will destroy the membranes of the mouth, throat, and esophagus and, in addition, have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. Transport the victim IMMEDIATELY to a hospital. |
| Inhalation | IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used. |
| Skin | IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas. |
| Eyes | First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop. |
| Transport. | ||
| UN number | 2279 | |
| Response guide | 151 | |
| Hazard class | 6.1 | |
| Packing Group | III | |
| USCG CHRIS Code | HCB | |
| Std. Transport # | 4925116 | |