1-BROMO-2-PENTENE, 95%, PREDOMINANTLY CIS(CAS#7348-78-9)
Risk and Safety
| Hazard Symbols | C – Corrosive |
| Risk Codes | R10 – Flammable R34 – Causes burns |
| Safety Description | S16 – Keep away from sources of ignition. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 – Take off immediately all contaminated clothing. 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.) |
| UN IDs | UN 2920 8/PG 2 |
1-BROMO-2-PENTENE, 95%, PREDOMINANTLY CIS(CAS#7348-78-9)
Chemical properties
Addition reaction: Due to the presence of carbon-carbon double bonds, it can undergo addition reactions with hydrogen, halogen, hydrogen halide, water, etc. For example, in an addition reaction with bromine water, the carbon-carbon double bond is broken and the bromine atom is added to the two double-bonded carbon atoms respectively, resulting in the formation of a related isomer of 1,2-dibromopentane.
Substitution reaction: Bromine atom has a certain activity, under appropriate conditions, substitution reaction can occur, for example, under alkaline conditions, bromine atom can be replaced by nucleophiles such as hydroxyl groups to generate corresponding alcohol compounds.
Elimination reaction: Under the conditions of a strong alkali alcohol solution, 1-bromo-2-pentene can undergo an elimination reaction to eliminate hydrogen bromide and generate products such as pentyne.
use
Organic synthesis intermediates: They have important uses in organic synthesis and can be used to construct various complex organic molecular structures. For example, by reacting with other compounds containing functional groups, functional groups such as carbon-carbon double bonds and bromine atoms are introduced to further carry out functional group conversion and molecular modification for the synthesis of organic compounds such as drugs, spices, and pesticides.
In the field of materials science, it can be used as a monomer or modifier for the synthesis of polymer materials with special properties. Through polymerization reaction with other monomers, carbon-carbon double bonds and other structures are introduced into the polymer chain, so as to improve the properties of polymer materials, such as improving the flexibility, heat resistance, and chemical corrosion resistance of materials.
Safety Information
Hazard category: flammable liquid, irritating.
Hazard Statement: Flammable, its vapor and air can form an explosive mixture, in case of open flame, high heat energy to cause combustion explosion. It can react strongly with oxidants. It is irritating to the eyes, skin and respiratory tract.
Safety measures: During use and storage, keep away from fire and heat sources, and keep the container sealed. When using it, it should be carried out in a well-ventilated environment, and the operator should wear appropriate protective equipment, such as protective glasses, gloves, protective clothing, etc. In the event of a leak, personnel in the leak-contaminated area should be evacuated quickly to a safe area, and isolated to strictly restrict access and access. Cut off the source of fire, cut off the source of leakage as much as possible, and prevent it from flowing into restricted spaces such as sewers and drainage ditches.
