Product name Methylchloroacetate
Molecular formula


CAS NO. 96-34-4
Molecular weight 108.53
Basic Information

[Product name]: Methylchloroacetate
[CAS number]: 96-34-4
[Molecular formula]: C3H5ClO2
[Molecular weight]: 108.53
[RTECS number]: AF9500000
[UN Code]: 2295
[Dangerous Goods Code]: 61102
[IMDG Rule Page]: 6192
[Appearance and properties]: colorless transparent liquid, with irritating odor.
[Hazard category]: Category 6.1 Toxicant
[Packaging Mark of Dangerous Goods]: 14
[Packing type]: II
[Solubility]: slightly soluble in water, soluble in ethanol, ether, benzene, acetone.
[Main Uses]: used in organic synthesis, and as insecticide "dimethoate" intermediate.

Physical and chemical properties

[Critical temperature (° C)]:
[Critical pressure (MPa)]:
[Saturated vapor pressure (kPa)]: 1.33 / 29 ° C
[Heat of combustion (kj / mol)]:
[Melting point (° C)]: -32.1
[Boiling point (° C)]: 129.8
[Flash point (° C)]: 51
[Relative density (water == 1)]: 1.24
[Relative density (air = 1)]: 3.8
[Autoignition temperature (° C)]: 465
[Lower Explosive Limit (V%)]: 7.5
[Upper Explosive Limit (V%)]: 18.5

Hazardous characteristics

[Hazardous characteristics]: case of fire, heat or contact with oxidants, causing the risk of combustion explosion.
[Flammability]: Flammable
[Toxic]: is a high toxic category
LD50: 240 mg / kg (mouse oral)
LC50: 1000 mg / m 32 hours (mouse inhalation)
[Stability]: Stable
[Polymer Hazards]: Can not occur
[Building fire classification]: B
[Combustion (decomposition) products]: carbon monoxide, carbon dioxide, hydrogen chloride.
[Contraindications]: acids, alkalis, strong oxidants, strong reducing agents.
[Fire fighting methods]: foam, carbon dioxide, sand.

Human body harm and protection

[Health hazards]: Inhalation, ingestion or absorption through the skin Harmful to the body. On the eyes, mucous membranes, respiratory and skin have a strong stimulating effect.
Inhalation due to the throat and bronchial spasm, inflammation and edema, chemical pneumonia, pulmonary edema may be fatal.
Poisoning performance of a burning sensation, cough, wheezing, laryngitis, shortness of breath, headache, nausea, vomiting.
[Invasive approach]: inhaled ingested percutaneous absorption
[Skin contact]: Immediately remove contaminated clothing, rinse thoroughly with plenty of flowing 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. Note that warm, breathing difficulties when oxygen. When breathing stops, perform artificial respiration immediately. Get medical attention.
[Ingestion]: When the patient awake immediately gargle, to drink milk or egg white. 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]:
[Other protections]: Smoking, eating and drinking are prohibited at the work site. The site should be equipped with equipment for washing eyes and skin.
After work, rinse thoroughly. Separate storage of toxic contaminated clothing, washed and then.
[Safety and health standards]: China MAC: No standard set
Soviet MAC: 5mg / m3
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. Storage temperature should not exceed 30 ℃. To prevent direct sunlight.
Keep the container sealed. Should be stored separately from oxidizing agents, acids and alkalis.
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.
Water spray reduces evaporation but does not reduce the flammability of the spill in confined spaces.
Mixed with sand or other non-flammable absorbent absorption, and then transported to the collection and disposal of waste disposal sites. It can also be treated with an alkaline substance.
Such as large leaks, the use of dike embankment, and then collect, transfer, recycling or harmless disposal.
[Engineering Control]: Strictly sealed to provide adequate local exhaust. As far as possible mechanization, automation.



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