o-Dichlorobenzene
- 1,2-Dichlorobenzene
- o-Dichlorobenzol
o-Dichlorobenzene | |
| |
| Formula | C6H4Cl2 |
| Structure | |
| Description | Colorless to pale yellow liquid, pleasant aromatic odor. |
| Uses | Herbicide. |
| Registry Numbers and Inventories. | |
| CAS | 95-50-1 |
| EC (EINECS/ELINCS) | 202-425-9 |
| EC Index Number | 602-034-00-7 |
| EC Class | Harmful; Irritant; Dangerous for the Environment |
| EC Risk Phrase | R 22 36/37/38 50/53 |
| EC Safety Phrase | S 23 60 61 |
| RTECS | CZ4500000 |
| RTECS class | Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant |
| UN (DOT) | 1591 |
| Merck | 13,3081 |
| Beilstein/Gmelin | 606078 |
| Beilstein Reference | 4-05-00-00654 |
| RCRA | U070 |
| EPA OPP | 59401 |
| Swiss Giftliste 1 | G-3644 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C6H4Cl2 |
| Formula mass | 147.00 |
| Melting point, °C | -17 |
| Boiling point, °C | 180.5 |
| Vapor pressure, mmHg | 3 (30 C) |
| Vapor density (air=1) | 5.1 |
| Saturation Concentration | 0.1% at 20 C |
| Evaporization number | 0.8 (n-butyl acetate = 1) |
| Critical temperature | 417.2 |
| Critical pressure | 39.8 |
| Density | 1.309 g/cm3 (20 C) |
| Solubility in water | 100 mg/L |
| Viscosity | 1.324 cp at 25C |
| Surface tension | 36.61 g/s2 |
| Refractive index | 1.5515 (20 C) |
| Dipole moment | 2.27 D (24 C) |
| Dielectric constant | 9.9 (25 C) |
| Partition coefficient, pKow | 3.43 |
| Heat of fusion | 12.93 kJ/mol |
| Heat of vaporization | 50.23 kJ/mol |
| Heat of combustion | -2964 kJ/mol |
| Hazards and Protection. | |
| Storage | Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. |
| WHMIS | B3 D1B |
| Handling | Wash thoroughly after handling. Use only in a well ventilated area. 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. 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. |
| Disposal code | 2 |
| Stability | Stable at room temperature in closed containers under normal storage and handling conditions. |
| Incompatibilities | Strong oxidizing agents, acids, aluminum. |
| Decomposition | Hydrogen chloride, chlorine, carbon monoxide, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 66 | |||
| Autoignition, °C | 640 | |||
| Upper exp. limit, % | 12 | |||
| Lower exp. limit, % | 2.2 | |||
| Fire fighting | Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Combustion generates toxic fumes. Use water spray to keep fire-exposed containers cool. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam. Use agent most appropriate to extinguish fire. Cool containers with flooding quantities of water until well after fire is out. | |||
| Fire potential | Slight; moderate when exposed to heat or flame. | |||
| Hazards | Poisonous gases are produced in fire | |||
| Combustion products | Poisonous vapors including hydrogen chloride gas, chlorocarbons, chlorine | |||
| NFPA | Health | 2 | ||
| Flammability | 2 | |||
| Reactivity | 0 | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: C 50 ppm (300 mg/m3) OSHA PEL: C 50 ppm (300 mg/m3) IDLH 200 ppm |
| Poison_Class | 4 |
| Exposure effects | Prolonged or repeated exposure may cause adverse reproductive effects. May cause liver and kidney damage. May cause fetal effects. |
| Ingestion | Harmful if swallowed. May cause central nervous system depression, kidney damage, and liver damage. |
| Inhalation | May cause respiratory tract irritation. May cause liver and kidney damage. May cause drowsiness, unconsciousness, and central nervous system depression. |
| Skin | Causes irritation with burning pain, itching, and redness. |
| Eyes | Contact produces irritation, tearing, and burning pain. Vapors 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 | Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. |
| 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 | 1591 | |
| Response guide | 152 | |
| Hazard class | 6.1 | |
| Packing Group | III | |
| USCG CHRIS Code | DBO | |
| USCG Compatatibility Group | 36 Halogenated hydrocarbons | |
| HS Code | 2903 61 00 | |
| Std. Transport # | 4925203 | |
| IMO Chemical Code | 17 | |
| IMO Pollution Category | B | |
| IMO Hazard code | S/P | |