Skip to main content

How Is Ethyl Bromide Prepared From Ethyl Alcohol 2How 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.

 

For more information about Methyl Iodide, please feel free to contact us!



Labels:

Comments

Post a Comment

Popular posts from this blog

Butyl Iodide

Features of Butyl Iodide Product Name: Butyl iodide Chemical Formula: C4H9I CAS No .: 542-69-8 Dangerous Grade: 3 Technical Data of Butyl Iodide ITEMS SPECIFICATIONS RESULTS Appearance Colorless transparent liquid Conforms Assay ≥99% 99.16% Specific Gravity 1.60-1.64 (20 ° C) 1.61 Distillation Range 129-132 ° C 130 ° C Conclusion Complies Remarks No free Iodine Package and Storage: 100kg/drum or 200kg/drum Store in a cool, dry place. Keep container closed when not in use Application /Application Industries: Solvent Organic synthesis Butyl iodide  (1-iodobutane) is an organic compound which is an iodo derivative of butane. It is used as an alkylating agent. n-Butyl Iodide is used in wide range of medicals industrial applications as well as in human and animal nutrition products such as antiseptics and disinfectants, pharmaceutical intermediates, polarizing films for liquid crystal display [LCD] ch...
Post a Comment
Read more

Pesticides

  Pesticide is any substance or mixture of substances intended for Preventing, destroying, repelling or mitigating any pest. Use as a plant regulator, defoliant, or desiccant. Use as a nitrogen stabilizer   Pesticide, any toxic substance used to kill animals or plants that cause economic damage to crop or ornamental plants or are hazardous to the health of domestic animals or humans. All pesticides interfere with normal metabolic processes in the pest organism and often are classified according to the type of organism they are intended to control.  (See herbicide; insecticide; fungicide; fumigant.)   P esticide A ctive I ngredients L ist   Allyl Alcohol Chemical Formula: C3H6O CAS No.: 107-18-6 Dangerous Grade: 6.1 Methyl Iodide Chemical Formula: CH3I CAS No.: 74-88-4 Dangerous Grade: 6.1 Isoprenol Chemical Formula: C5H10O CAS No.: 763-32-6 Dangerous Grade: 3 Benzalkonium Chloride Product Name: Benzalkonium chloride Chemical Formula: C17H30ClN   Ethyl Iodid...
Post a Comment
Read more

Phenyltrimethoxysilane

  phenyltrichlorosilane Features of P henyltrichlorosilane Product Name: Phenyltrimethoxysilane Chemical Formula: C9H14O3Si CAS 2996-92-1   Dangerous Grade: NO Technical Data of Phenyltrimethoxysilane   ITEMS SPECIFICATION Appearance Colorless transparent liquid Reactive index(n25D) 1.4680±0.0050 Assay 98%   Package and Storage: 200kg/drum or 1000kg/IBC drum Store in a cool, dry place. Keep container closed when not in use   Application /Application Industries: Phenyl functional silane can improve thermal stability of other silanes. Phenyl functional silane can be used as other silanes and siloxanes intermediates. Phenyl functional silane can be used for hydrophobic surface treatment. Phenyl functional silane can be used as hydrophobic additive to other silane coupling agents. CG-P13 is used to modify the suface of inorganic fillers such as wollastonite and aluminum trihydroxide. It makes the surface of these inorganic fillers more hydrophobic and thus increases...
Post a Comment
Read more