Chloroacetyl chloride
- Chloroacetic Acid Chloride;
- Monochloroacetyl Chloride
Chloroacetyl chloride | |
| |
| Formula | ClCH2COCl |
| Structure | |
| Description | Colorless to yellowish liquid, very pungent odor. |
| Uses | Tear gas, intermediate, used to prepare chloracetophenone. |
| Registry Numbers and Inventories. | |
| CAS | 79-04-9 |
| EC (EINECS/ELINCS) | 201-171-6 |
| EC Index Number | 607-080-00-1 |
| EC Class | Reacts violently with water; Contact with water liberates toxic gas; Toxic; Corrosive; Dangerous for the Environment |
| EC Risk Phrase | R 14 23/24/25 35 48/23 50 |
| EC Safety Phrase | S 7/8 9 26 36/37/39 45 61 |
| RTECS | AO6475000 |
| RTECS class | Other |
| UN (DOT) | 1752 |
| Merck | 13,2074 |
| Beilstein/Gmelin | 605439 |
| Beilstein Reference | 4-02-00-00488 |
| Swiss Giftliste 1 | G-1382 |
| Canada DSL/NDSL | DSL |
| US TSCA | Listed |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Japan ENCS (MITI) | Listed |
| Korea ECL | Listed |
| Properties. | |
| Formula | C2H2Cl2O |
| Formula mass | 112.94 |
| Melting point, °C | -22.5 |
| Boiling point, °C | 105 |
| Vapor pressure, mmHg | 29 (25 C) |
| Vapor density (air=1) | 3.9 |
| Saturation Concentration | 25004 ppm (2.5%) (calculated) |
| Critical temperature | 308 |
| Critical pressure | 50.4 |
| Density | 1.426 g/cm3 (20 C) |
| Solubility in water | Decomposes |
| Viscosity | 4.51x10-2 n/m @ 251.15 K |
| Refractive index | 1.4541 (20 C) |
| Partition coefficient, pKow | 0.98 |
| Heat of fusion | 0.5 kJ/mol |
| Heat of vaporization | 41.2 kJ/mol |
| Heat of combustion | -1039 kJ/mol |
| Hazards and Protection. | |
| Storage | Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Do not store near alkaline substances. Store protected from moisture. |
| Handling | Wash thoroughly after handling. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Wash clothing before reuse. Discard contaminated shoes. |
| 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. Do not expose spill to water. |
| Disposal code | 11 |
| Stability | Decomposes when heated. |
| Incompatibilities | Alcohols, oxidizing agents, and strong bases |
| Decomposition | Hydrogen chloride, phosgene, carbon monoxide, carbon dioxide. |
| Fire. | ||||
| Flash Point,°C | 34 | |||
| Autoignition, °C | > 500 | |||
| Upper exp. limit, % | 16.3 | |||
| Fire fighting | Use dry chemical or carbon dioxide. Do not use water on material itself. If large quantities of combustibles are involved, use water in flooding quantities as spray and fog. Use water spray to knock-down vapors. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. | |||
| Fire potential | Not combustible, but if involved in a fire decomposes to produce hydrogen chloride. | |||
| Hazards | Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. | |||
| Combustion products | Heat of fire can cause decomposition, with evolution of highly toxic and irritating hydrogen chloride and phosgene vapors. | |||
| NFPA | Health | 3 | ||
| Flammability | 0 | |||
| Reactivity | 1 | |||
| Health. | |
| Exposure limit(s) | TLV: 0.05 ppm; 0.23 mg/m3 (skin) (ACGIH 1997). TLV (as STEL): 0.15 ppm; 0.69 mg/m3 (ACGIH 1997). NIOSH REL: TWA 0.05 ppm (0.2 mg/m3) |
| Poison_Class | 2 |
| Exposure effects | Agitation and syncope, both attributed to panic, have been reported. |
| Ingestion | Harmful if swallowed. Causes gastrointestinal tract burns. |
| Inhalation | Harmful if inhaled. Causes severe irritation of upper respiratory tract with coughing, burns, breathing difficulty, and possible coma. May cause abdominal pain, nausea, vomiting, and inflammation of the gums and mouth. |
| Skin | Harmful if absorbed through the skin. Causes severe skin irritation and burns. |
| Eyes | Lachrymator. Causes eye irritation and burns. |
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 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. Destroy contaminated shoes. |
| Eyes | Get medical aid immediately. Extensive irrigation is required (at least 30 minutes). |
| Transport. | ||
| UN number | 1752 | |
| Response guide | 156 | |
| Hazard class | 6.1 | |
| PRTC | T | |
| Packing Group | I | |
| USCG CHRIS Code | CAC | |
| HS Code | 2915 90 80 | |
| Std. Transport # | 4923117 4931210 | |