methyl(isopropyl)acetylene
4-METHYL-2-PENTYNE
CAS: 21020-27-9
Molecular Formula: C6H10
methyl(isopropyl)acetylene - Names and Identifiers
| Name | 4-METHYL-2-PENTYNE |
| Synonyms | methylpentyne 4-METHYL-2-PENTYNE 4-methyl-pent-2-yne 2-Pentyne, 4-methyl- ISOPROPYLMETHYLACETYLENE methyl(isopropyl)acetylene |
| CAS | 21020-27-9 |
methyl(isopropyl)acetylene - Physico-chemical Properties
| Molecular Formula | C6H10 |
| Molar Mass | 82.14 |
| Density | 0.711 g/mL at 25 °C(lit.) |
| Melting Point | 110°C |
| Boling Point | 71-73 °C(lit.) |
| Flash Point | -100 °F |
| Appearance | Form Liquid, color Clear slightly yellow |
| Storage Condition | Flammables area |
| Refractive Index | n20/D 1.407(lit.) |
| MDL | MFCD00041615 |
methyl(isopropyl)acetylene - Risk and Safety
| Hazard Symbols | F - Flammable |
| Risk Codes | 11 - Highly Flammable |
| Safety Description | S16 - Keep away from sources of ignition. S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3295 3/PG 2 |
| WGK Germany | 3 |
| HS Code | 29012900 |
| Hazard Class | 3 |
| Packing Group | II |
methyl(isopropyl)acetylene - Upstream Downstream Industry
methyl(isopropyl)acetylene - Introduction
4-METHYL-2-PENTYNE is an organic compound with the chemical formula C7H12. The following is a description of the properties, uses, preparation and safety information of the compound:
Nature:
4-METHYL-2-PENTYNE is a colorless liquid with a special smell. It is lighter in density, insoluble in water and volatile. The compound can burn and has a low ignition point.
Use:
4-METHYL-2-PENTYNE is mainly used as a reaction reagent in organic synthesis. It can participate in a variety of chemical reactions, for example, reacting with metal halides to form organometallic compounds. In addition, it can also be used as a diluent for olefins and chemical raw materials.
Preparation Method:
4-METHYL-2-PENTYNE can be prepared by the reaction of an alkyne and bromopropane. First, bromopropane is reacted with acetylene under alkaline conditions to produce iodopropene. It is then reacted with iodopropene by the addition of a methyl magnesium halide, such as methyl magnesium bromide, to produce 4-METHYL-2-PENTYNE.
Safety Information:
4-METHYL-2-PENTYNE is dangerous. It is flammable and should be kept away from fire and high temperature. When in use, you should follow safe operating procedures, wear protective gloves and eyes, and ensure that you operate in a well-ventilated environment. In addition, care should be taken to avoid contact with the skin and inhalation of its vapors. In case of skin contact or inhalation, rinse immediately with water and seek medical assistance. It is recommended to store 4-METHYL-2-PENTYNE in an airtight container and place it in a cool and dry place, away from fire. Local regulations and safety practices should be followed when handling the substance.
Nature:
4-METHYL-2-PENTYNE is a colorless liquid with a special smell. It is lighter in density, insoluble in water and volatile. The compound can burn and has a low ignition point.
Use:
4-METHYL-2-PENTYNE is mainly used as a reaction reagent in organic synthesis. It can participate in a variety of chemical reactions, for example, reacting with metal halides to form organometallic compounds. In addition, it can also be used as a diluent for olefins and chemical raw materials.
Preparation Method:
4-METHYL-2-PENTYNE can be prepared by the reaction of an alkyne and bromopropane. First, bromopropane is reacted with acetylene under alkaline conditions to produce iodopropene. It is then reacted with iodopropene by the addition of a methyl magnesium halide, such as methyl magnesium bromide, to produce 4-METHYL-2-PENTYNE.
Safety Information:
4-METHYL-2-PENTYNE is dangerous. It is flammable and should be kept away from fire and high temperature. When in use, you should follow safe operating procedures, wear protective gloves and eyes, and ensure that you operate in a well-ventilated environment. In addition, care should be taken to avoid contact with the skin and inhalation of its vapors. In case of skin contact or inhalation, rinse immediately with water and seek medical assistance. It is recommended to store 4-METHYL-2-PENTYNE in an airtight container and place it in a cool and dry place, away from fire. Local regulations and safety practices should be followed when handling the substance.
Last Update：2024-04-10 22:29:15
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Raw Materials for methyl(isopropyl)acetylene
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