Nanjing Chemical Material Corp.
Service
Products

How Is Ethyl Bromide Prepared From Ethyl Alcohol 2 How Is Ethyl Bromide Prepared From Ethyl Alcohol 2

1. Preparation of ethyl bromide from ethyl alcohol and hydrobromic acid

Start with a 1-liter double neck round bottom flask with a drop funnel and wide bend. The bend is connected to a long and efficient condenser assembly and receiver for downward distillation. First, place 281ml (or 415 g) 48% hydrobromic acid in a flask, then add 65ml (or 120 g) of concentrated sulfuric acid in batches, while shaking. As it cools, a small quantity of 145ml (or 100 g) 95% ethanol is slowly added to the mixture of sulfuric acid and hydrobromic acid. Then 109ml (or 200g) of concentrated sulfuric acid is slowly added to the drop funnel, and the ethyl bromine obtained by slow distillation is collected in the cold receiver flask. The crude ethyl bromine was washed with equal volume of concentrated hydrochloric acid, then washed with water and a small amount of 5% sodium bicarbonate solution, then washed with water, and finally dried the ethyl bromine with anhydrous calcium chloride. The crude ethyl bromide is purified by distillation and 205 grams of pure ethyl bromine is obtained.

2. Preparation of ethyl bromide from ethyl alcohol and potassium bromide

Add 50g of concentrated sulfuric acid to 25g of ethanol and let it cool under continuous stirring. Pour in 60g of powdered potassium bromide and let the mixture rest overnight. The next day, the ethyl bromine is distilled and washed, washed with dilute sodium carbonate solution and water. Finally, the obtained bromoethane was dried and re-steamed with calcium chloride.

3. Preparation of ethyl bromide from ethyl alcohol and bromine

Place 60g of ethanol and 10g of red phosphorus in a round bottom flask cooled with cold water. Then 60g of bromine was slowly added to the droplet funnel while the mixture was stirred and cooled. When all the bromine is added, stir the mixture for another hour. The ethyl bromide is then distilled and washed with dilute sodium carbonate solution and distilled water. Finally, using calcium chloride ethyl bromide and distillation, got in 38 ℃ boiling colorless heavy liquid.

Related Products Wiki
  • Anionic Surfactant: LAS

    Anionic Surfactant: LAS

    March 22, 2022Common examples of such active agents are sodium straight-chain alkyl benzene sulfonates and sodium alpha-alkenyl sulfonates. Sodium Linear Alkyl Benzene Sulfonate, also known as LAS, is a white or li...view
  • Tetrapropyl Ammonium Hydroxide Solution

    Tetrapropyl Ammonium Hydroxide Solution

    October 13, 2021Tetrapropyl ammonium hydroxide is a chemical with the formula C12H29NO. Tetrapropyl ammonium hydroxide solution is a quaternary ammonium base, a strong organic base, similar in molecular structure to ...view
  • The Versatile Potential of 1,2-Epoxybutane in Medicinal Chemistry

    The Versatile Potential of 1,2-Epoxybutane in Medicinal Chemistry

    January 26, 2024Today, we are going to explore the remarkable role of 1,2-EPOXYBUTANE in advancing pharmaceutical research and development. From its synthesis to potential applications in drug discovery, this compoun...view
  • Classification of Paraffin

    Classification of Paraffin

    July 20, 2021According to the degree of refining, it can be divided into three types: fully refined paraffin, semi-refined paraffin and crude paraffin. Each type of wax is divided into different varieties accordin...view
  • Principle of Surface Tension Reduction by Surfactants

    Principle of Surface Tension Reduction by Surfactants

    March 4, 2021In order to reduce the surface tension of water, for example, the surfactant molecules have hydrophilic and lipophilic groups. Due to the repulsion between the lipophilic groups and the water molecule...view
  • DMC Catalyzes the Ring-opening Polymerization of Propylene Epoxide at Low Temperature

    DMC Catalyzes the Ring-opening Polymerization of Propylene Epoxide at Low Temperature

    October 30, 2020DMC catalyst is an effective catalyst for the ring-opening polymerization of epoxy compounds and is one of the important research directions of polyether synthesis in recent years. DMC catalyst is gen...view
Related Products
  • 1,2-Epoxybutane Product Name: n-butylene-1,2-oxide Chemical Formula: C4H8OCAS No.: 106-88-7Dangerous Grade: 3Technical Data:ITEMSSPECIFICATIONPurity %≥99Color(APHA)≤10Water content (wt %)≤0.10Package and Storage:C...
  • Butyl methacrylate BMA Product InformationProduct Name: Butyl methacrylate BMA Chemical Formula: C8H14O2CAS No.: 97-88-1Dangerous Grade: 3Technical Data:ITEMSSPECIFICATIONPurity(GC)≥99.5%Acidity(MAA)≤0.01%Water≤0.03%Chro...
  • N-Vinyl-2-Pyrrolidone Product InformationProduct Name: N-Vinyl-2-pyrrolidoneChemical Formula: C6H9NOCAS No.: 88-12-0Dangerous Grade: 6.1Technical Data:ItemSpecificationAppearanceClear liquidAssay≥99.5%α-Pyrrolidone≤0.2%...
  • C12-14 Linear Alkyl Benzene Sulfonate(LAS) Product Name: C12-14 Linear Alkyl Benzene Sulfonate(LAS)Chemical Formula:C18H30O3SCAS No.:27176-87-0Dangerous Grade: 8Technical Data of C12-14 Linear Alkyl Benzene Sulfonate(LAS)ITEMSSPECIFICATIONSAppearanceLight ye...
  • TEL:+86-25-52337978
  • EMAIL: info@njchm.com
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China