| Product Identification | Back to Contents | 【Product Name】
Methylchloroform | 【Synonyms】
alpha-Trichloroethane
Chlorothene
Methylchloroform
Methyltrichloromethane | 【CAS】
71-55-6 | 【Formula】
C2H3Cl3 | 【Molecular Weight】
133.4 | 【EINECS】
200-756-3 | 【RTECS】
KJ2975000 | 【RTECS Class】
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant | 【Merck】
12,9766 | 【Beilstein/Gmelin】
1731614 | 【Beilstein Reference】
4-01-00-00138 | 【EC Index Number】
602-013-00-2 | 【EC Class】
Harmful; Dangerous for the Environment |
| Physical and Chemical Properties | Back to Contents | 【Appearance】
Clear, colorless liquid with a mild chloroform-like odor. | 【Solubility in water】
4.4 mg/L (20 C) | 【Melting Point】
-32.5 | 【Boiling Point】
74 | 【Vapor Pressure】
100 (20 C) | 【Density】
1.31 g/cm3 (20 C) | 【Partition Coefficient】
2.49 | 【Heat Of Vaporization】
32.5 kJ/mol | 【Heat Of Combustion】
-1442 kJ/mol | 【Usage】
Solvent. | 【Vapor Density】
4.63 | 【Odor threshold】
44 ppm | 【Refractive Index】
1.43838 (20 C) |
| First Aid Measures | Back to Contents | 【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. | 【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】
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. |
| Handling and Storage | Back to Contents | 【Storage】
Keep away from sources of ignition. Store in a cool, dry, well-ventilated area away from incompatible substances. Do not store in aluminum containers. | 【Handling】
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Do not ingest or inhale. |
| Hazards Identification | Back to Contents | 【Inhalation】
Inhalation of vapors will irritate the respiratory tract. Affects the central nervous system. Symptoms include headache, dizziness, weakness, nausea. Higher levels of exposure (> 5000 ppm) can cause irregular heart beat, kidney and liver damage, fall in blood pressure, unconsciousness and even death. | 【Skin】
Causes mild irritation and redness, especially on prolonged contact. Repeated contact may cause drying or flaking of the skin. May be absorbed through the skin. | 【Eyes】
Liquid and vapor cause irritation. Symptoms include tearing, redness, stinging, swelling. | 【Ingestion】
Harmful if swallowed. Symptoms similar to inhalation will occur along with nausea, vomiting. Aspiration of material into the lungs can cause chemical pneumonitis which can be fatal. If aspirated, may be rapidly absorbed through the lungs and result in injury to other body systems. | 【Hazards】
Air/vapor mixtures may explode when ignited. Container may explode in heat of fire. | 【UN (DOT)】
2831 |
| Exposure Controls/Personal Protection | Back to Contents | 【Personal 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】
Wear a supplied air, full-facepiece respirator, airlined hood, or full-facepiece self-contained breathing apparatus. Breathing air quality must meet the requirements of the OSHA respiratory protection standard (29CFR1910.134). This substance has questionable warning properties. Where respirators are required, you must have a written program covering the basic requirements in the OSHA respirator standard. These include training, fit testing, medical approval, cleaning, maintenance, cartridge change schedules, etc. See 29CFR1910.134 for details. | 【Exposure Effects】
Prolonged or repeated skin contact may cause defatting and dermatitis. May cause fetal effects. Laboratory experiments have resulted in mutagenic effects. Prolonged exposure may cause liver, kidney, and heart damage. | 【Exposure limit(s)】
OSHA PEL: TWA 350 ppm (1900 mg/m3) NIOSH REL: C 350 ppm (1900 mg/m3) 15-minute See Appendix C (Chloroethanes) NIOSH IDLH: 700 ppm | 【Poison Class】
5 |
| Fire Fighting Measures | Back to Contents | 【Flash Point】
-1 | 【Autoignition】
500 | 【Fire Fighting】
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use extinguishing media most appropriate for the surrounding fire. In case of fire, use water fog, dry chemical, carbon dioxide, or regular foam. | 【Upper exp. limit】
16 | 【Lower exp. limit】
7 | 【Fire Potential】
Slightly flammable at higher temperatures. Inhibited trichloroethanes have been found to have explosive limits, but ignition requires a high energy source. Once the source is removed, the vapor will continue to burn. |
| Accidental Release Measures | Back to Contents | 【Small spills/leaks】
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Absorb spill using an absorbent, non-combustible material such as earth, sand, or vermiculite. Provide ventilation. |
| Stability and Reactivity | Back to Contents | 【Incompatibilities】
Metals, strong oxidizing agents, strong bases, active metals, aluminum, halocarbons, liquid oxygen, magnesium, sodium hydroxide, potassium, sodium, caustics, hydrochloric acid, water, nitrogen tetroxide, aluminum alloys, magnesium alloys, aluminum oxide + heavy metals. | 【Stability】
Requires inhibitor content to prevent corrosion of metals. Slowly hydrolyzes in water to form hydrochloric and acetic acid. | 【Decomposition】
Hydrogen chloride, phosgene, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide. | 【Combustion Products】
Toxic and irritating gases are generated in fires. |
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