NEET Exam > NEET Videos > Chemistry Class 12 > Electrical Disintegration or Bredig's Arc Method
Electrical Disintegration or Bredig's Arc Method Video Lecture | Chemistry Class 12 - NEET
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135 videos|348 docs|182 tests
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FAQs on Electrical Disintegration or Bredig's Arc Method Video Lecture - Chemistry Class 12 - NEET
| 1. What is electrical disintegration or Bredig's arc method? |  |
Ans. Electrical disintegration, also known as Bredig's arc method, is a technique used to produce ultrafine particles by disintegrating metallic electrodes through an electric arc. It involves passing a high voltage current between two electrodes submerged in a liquid medium, resulting in the disintegration of the electrode material into small particles.
| 2. How does electrical disintegration work? | |
Ans. In electrical disintegration, a high voltage current is passed through two electrodes immersed in a liquid medium. The electric arc created between the electrodes causes the electrode material to vaporize, forming a plasma cloud. The plasma cloud rapidly cools and condenses, resulting in the formation of ultrafine particles.
| 3. What are the applications of electrical disintegration or Bredig's arc method? | |
Ans. Electrical disintegration or Bredig's arc method has various applications in different fields. It is commonly used in the production of nanoparticles for catalysts, pigments, and coatings. It is also utilized in the manufacturing of nanocomposites, conductive inks, and electronic components. Additionally, it finds applications in the synthesis of nanomaterials for drug delivery systems and biomedical applications.
| 4. What are the advantages of electrical disintegration or Bredig's arc method? | |
Ans. Electrical disintegration offers several advantages as a particle synthesis technique. It allows for the production of ultrafine particles with high purity and controlled size distribution. The method is relatively simple and can be easily scaled up for large-scale production. It also provides the ability to synthesize a wide range of materials, including metals, metal oxides, and alloys. Additionally, electrical disintegration offers the advantage of producing particles with unique morphologies and surface properties.
| 5. Are there any limitations or challenges associated with electrical disintegration or Bredig's arc method? | |
Ans. While electrical disintegration has numerous advantages, there are also some limitations and challenges to consider. One limitation is the potential for oxidation or contamination of the synthesized particles due to the high-energy environment. Controlling the size and morphology of the particles can also be challenging, requiring precise control over the process parameters. Furthermore, the process may result in a low yield of nanoparticles, and the method may not be suitable for all types of materials.
Text Transcript from Video
electro dispersion method bread eggs arc
method this method is widely used in
preparation of colloidal solution of
metals like gold silver platinum etc the
method uses two rods of metal which we
want to disperse as electrodes these
rods are immersed under the dispersion
medium in this case water along with
some stabilizing agent like potassium
hydroxide the whole setup is placed
inside an ice bath or cold bath the ice
mixed with a little salt to make sure
the ice doesn't melt so fast the ice
bath ensures the water remains cold when
the electrodes are charged using
electricity an arc is formed at the end
due to the arc a huge amount of heat is
generated causing the metal to vaporize
since the water is still cold the metal
immediately condenses back to solid and
disperses to form the colloidal solution
method this method is widely used in
preparation of colloidal solution of
metals like gold silver platinum etc the
method uses two rods of metal which we
want to disperse as electrodes these
rods are immersed under the dispersion
medium in this case water along with
some stabilizing agent like potassium
hydroxide the whole setup is placed
inside an ice bath or cold bath the ice
mixed with a little salt to make sure
the ice doesn't melt so fast the ice
bath ensures the water remains cold when
the electrodes are charged using
electricity an arc is formed at the end
due to the arc a huge amount of heat is
generated causing the metal to vaporize
since the water is still cold the metal
immediately condenses back to solid and
disperses to form the colloidal solution
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Oct 24, 2024 Last updated |
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