Molecular Formula | C4H7ClO2 |
Molar Mass | 122.55 |
Density | 1.075g/mLat 25°C(lit.) |
Melting Point | -10 °C |
Boling Point | 132-133°C(lit.) |
Flash Point | 101°F |
Water Solubility | immiscible |
Vapor Presure | 5.25 mm Hg ( 20 °C) |
Vapor Density | 4.22 (vs air) |
Appearance | clear liquid |
Specific Gravity | 1.075 |
Color | Colorless to Almost colorless |
BRN | 1421535 |
PH | 6-7 (H2O, 20℃) |
Storage Condition | Store at +5°C to +30°C. |
Stability | Stable. Flammable. Incompatible with strong oxidizing agents. |
Explosive Limit | 2.8-13.9%(V) |
Refractive Index | n20/D 1.417(lit.) |
Physical and Chemical Properties | Density 1.075 melting point -10°C boiling point 132-133°C refractive index 1.416-1.419 flash point 38°C water-soluble immiscible |
Use | Used as an intermediate of pesticide, medicine and perfume |
Hazard Symbols | Xi - Irritant |
Risk Codes | R10 - Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection S16 - Keep away from sources of ignition. |
UN IDs | UN 2933 3/PG 3 |
WGK Germany | 1 |
RTECS | UE9100000 |
TSCA | Yes |
HS Code | 29159080 |
Hazard Class | 3 |
Packing Group | III |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Use | methyl α-chloropropionate is an intermediate of the fungicides, such as metalaxyl, benzalene, and humilam, the herbicides, such as grass, and proglumine. used as pesticide, pharmaceutical intermediates. α-chloropropionic acid methyl ester is the intermediate of bactericide metalaxyl, benzalene and humilex, herbicide graminidene, prilachlor and so on; Used as pesticide, medicine, perfume intermediate used as solvent, pharmaceuticals, pesticides, such as aryl phenoxy herbicides such as grass spirit and other fungicides metalaxyl, the intermediates of mildew. |
production method | the preparation method is a Reflux reaction of α-chloropropionic acid and methanol in the presence of a catalyst, after several hours of reaction, the product was obtained by post-treatment and distillation. CH3CHClCOOH CH3OH [catalyst] → CH3CHClCOOCH3 H2O |
category | flammable liquid |
toxicity grade | high toxicity |
Acute toxicity | abdominal injection-mouse LDL0: 250 mg/kg |
flammability hazard characteristics | flammable; Toxic chloride gas emitted by heat |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Storage and transportation is separated from oxidant |
extinguishing agent | dry powder, carbon dioxide, sand, foam |
autoignition temperature | 430°C DIN 51794 |