Methallyl Chloride
3-Chloro-2-methylpropene
CAS: 563-47-3
Molecular Formula: C4H7Cl
Methallyl Chloride - Names and Identifiers
Methallyl Chloride - Physico-chemical Properties
| Molecular Formula | C4H7Cl |
| Molar Mass | 90.55 |
| Density | 0.925 g/mL at 20 °C (lit.) |
| Melting Point | -80 °C (lit.) |
| Boling Point | 71-72 °C (lit.) |
| Flash Point | 9°F |
| Water Solubility | 0.5 g/L (20 ºC) |
| Solubility | H2O: insoluble |
| Vapor Presure | 102 mm Hg ( 20 °C) |
| Vapor Density | 3.12 (vs air) |
| Appearance | Liquid |
| Color | Clear |
| Merck | 14,2148 |
| BRN | 878160 |
| Storage Condition | 2-8°C |
| Explosive Limit | 2.2-10.4%(V) |
| Refractive Index | n20/D 1.427(lit.) |
| Physical and Chemical Properties | |
| Use | For the synthesis of acaricidal tin, sodium methallyl sulfonate, 3-chloro-2-methyl-epoxypropane |
Methallyl Chloride - Risk and Safety
| Risk Codes | R11 - Highly Flammable R20/22 - Harmful by inhalation and if swallowed. R34 - Causes burns R43 - May cause sensitization by skin contact R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S9 - Keep container in a well-ventilated place. S16 - Keep away from sources of ignition. S29 - Do not empty into drains. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | UN 2554 3/PG 2 |
| WGK Germany | 2 |
| RTECS | UC8050000 |
| TSCA | Yes |
| HS Code | 29032900 |
| Hazard Class | 3 |
| Packing Group | II |
Methallyl Chloride - Reference Information
| (IARC) carcinogen classification | 2B (Vol. 63, 115) 2018 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Uses | 2-methyl-3-chloropropene, also known as methallyl chloride, is used to synthesize the mite agent phenobylbutylbenzene, an intermediate chlorotert-butylbenzene, It can also be used to synthesize the intermediate furan of the insecticide carbofuran. this product is an important organic intermediate, which can be widely used in medicine, pesticide, perfume, synthetic materials and other fields. It is the main raw material for the synthesis of insecticides such as carbofuran and phenylbutyltin. Organic intermediates are the main raw materials for the synthesis of insecticides such as carbofuran and phenylbutyltin. Used as an intermediate for pesticides, plastics, medicines, etc. Used to synthesize acaricidal tin, sodium methallyl sulfonate, 3-chloro-2-methylpropylene oxide, etc. |
| Production method | 2-methyl-3-chloropropene is prepared by the reaction of isobutylene and liquid chlorine. Isobutylene and liquid chlorine are measured separately after gasification, and then passed into the reactor according to the appropriate ratio. The reaction is strongly exothermic, and the reaction contact time must be strictly controlled, and the reaction is evenly mixed in an instant. After the reaction, the material enters the reaction evaporator, removes the reaction heat, and then enters the absorption condenser, absorbs hydrogen chloride into hydrochloric acid, and then is cooled and separated by oleic acid. Hydrochloric acid can be sold as a by-product, and the organic layer is fractionated to obtain 2-Methyl -3-chloropropene, the content can reach 95% ~ 98%. |
| category | flammable liquid |
| toxicity classification | poisoning |
| acute toxicity | oral administration-rat LD50: 848 mg/kg; Oral administration-mouse LDL0: 3160 mg/kg |
| Explosive hazard characteristics | Mix with air to form an explosive mixture; |
| flammability hazard characteristics | flammability; thermal decomposition of toxic chloride gas |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from oxidant storage and transportation |
| fire extinguishing agent | foam, dry powder, carbon dioxide, sand |
| occupational standard | STEL 0.3 mg/m3 |
| auto-ignition temperature | 899 °F |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:05
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