Product name Methyldichloroacetate
Molecular formula


CAS NO. 116-54-1
Molecular weight 142.97
Basic Information

[Product name]: Methyldichloroacetate
[CAS number]: 116-54-1
[Molecular formula]: C3H4Cl2O2
[Molecular weight]: 142.97
[RTECS number]: AG6625000
[UN Code]: 2299
[Dangerous Goods Code]: 61612
[IMDG Rule Page]: 6195
[Appearance and properties]: colorless liquid, with ether-like odor.
[Hazard category]: Category 6.1 Toxicant
[ Packaging Mark of Dangerous Goods]: 15
[Packing type]: II
[Solubility]: slightly soluble in water, soluble in ether, ethanol.
[Main Uses]: used as intermediate of organic synthesis.

Physical and chemical properties

[Critical temperature (° C)]:
[Critical pressure (MPa)]:
[Saturated vapor pressure (kPa)]: NA
[Heat of combustion (kj / mol)]:
[Melting point (° C)]: -52
[Boiling point (° C)]: 143
[Flash point (° C)]: 80
[Relative density (water == 1)]: 1.38
[Relative density (air = 1)]: 4.93
[Autoignition temperature (° C)]: NA
[Lower Explosive Limit (V%)]: NA
[Upper Explosive Limit (V%)]: NA

Hazardous characteristics

[Hazardous characteristics]: case of fire, high fever combustible. With strong oxidants can react.
Heat decomposition can emit highly toxic phosgene. Reaction to heat the release of toxic corrosive gases.
[Flammability]: Flammable
[Stability]: Stable
[Polymer Hazards]: Can not occur
[Building fire classification]: C
[Combustion (decomposition) products]: carbon monoxide, carbon dioxide, hydrogen chloride, phosgene.
[Contraindications]: acids, alkalis, strong oxidants, strong reducing agents, water.
[Fire fighting methods]: dry powder, foam, carbon dioxide, sand.

Human body harm and protection

[Health hazards]: This product on the mucous membrane, upper respiratory tract, eye and skin irritation.
Inhalation, may be due to throat and bronchial spasm, inflammation, edema, chemical pneumonia or pulmonary edema and death.
Coughing, wheezing, laryngitis, shortness of breath, headache, nausea and vomiting occur after exposure.
[Invasive approach]: inhaled ingested percutaneous absorption
[Skin contact]: Immediately remove contaminated clothing, wash thoroughly with soap and water.
[Eye contact]: immediately filed eyelid, with mobile water or saline for at least 15 minutes.
[Inhalation]: Quickly disengage from the scene to fresh air. Keep warm, if necessary, artificial respiration. Get medical attention.
[Ingestion]: When the patient awake to drink a lot of warm water, induce vomiting, gastric lavage as soon as possible. Get medical attention.
[Respiratory protection]: It may be exposed to vapor, it should wear gas masks. Emergency rescue or escape, wearing self-contained breathing apparatus.
[Eye protection]: Wear chemical safety glasses.
[Body protection]: wear appropriate protective clothing.
[Hand protection]: Wear chemical-resistant gloves.
[Conditions to avoid:] Contact with moist air.
[Other protections]: Smoking, eating and drinking are prohibited at the work site. After work, rinse thoroughly.
Do not take work clothes to non-workplace, separate storage of toxic contaminated clothing, washed and then.
[Safety and health standards]: China MAC: No standard set
Soviet MAC: No standard set
TWA: No standard set
STEL: No standard set

Storage and Leakage Handling

[Storage and transportation precautions]: Stored in a cool, ventilated warehouse. Keep away from fire and heat. To prevent direct sunlight.
Packaging requirements sealed, not in contact with air. Should not be large or long. Should be stored separately from oxidizing agents.
Handling to light loading and unloading to prevent damage to packaging and containers. Pay attention to personal protection during packing and handling.
[Leak disposal]: evacuate people living in contaminated areas to a safe area, prohibit unrelated persons from entering the contaminated area, cut off the fire source.
Recommended emergency personnel wearing self-contained breathing apparatus, wear chemical protective clothing. Do not directly contact the spill, plugging to ensure safety.
Mixed with sand or other non-flammable absorbent absorption, and then transported to the collection and disposal of waste disposal sites.
Can also be washed with plenty of water, diluted by washing water into the wastewater system. Such as a large number of leaks, collected recycling or harmless disposal.
[Engineering Control]: Strictly sealed to provide adequate local exhaust. As far as possible mechanization, automation.



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