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edit approved Jan 20, 2017 at 0:41
airhuff
edit approved Jan 20, 2017 at 0:41
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Carius tube

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using HNO3$\ce{HNO3}$ ? Can we carry out oxidation with other acids like H2So4$\ce{H2SO4}$?
  2. Why AgNO3$\ce{AgNO3}$ is added to HNO3$\ce{HNO3}$ and not to the organic compound? Will it be wrong if I add AgNO3$\ce{AgNO3}$ directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.

Carius tube

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using HNO3 ? Can we carry out oxidation with other acids like H2So4?
  2. Why AgNO3 is added to HNO3 and not to the organic compound? Will it be wrong if I add AgNO3 directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.

Carius tube

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using $\ce{HNO3}$ ? Can we carry out oxidation with other acids like $\ce{H2SO4}$?
  2. Why $\ce{AgNO3}$ is added to $\ce{HNO3}$ and not to the organic compound? Will it be wrong if I add $\ce{AgNO3}$ directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.

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user33495
user33495

enter image description hereCarius tube

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using HNO3 ? Can we carry out oxidation with other acids like H2So4?
  2. Why AgNO3 is added to HNO3 and not to the organic compound? Will it be wrong if I add AgNO3 directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.

enter image description here

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using HNO3 ? Can we carry out oxidation with other acids like H2So4?
  2. Why AgNO3 is added to HNO3 and not to the organic compound? Will it be wrong if I add AgNO3 directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.

Carius tube

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using HNO3 ? Can we carry out oxidation with other acids like H2So4?
  2. Why AgNO3 is added to HNO3 and not to the organic compound? Will it be wrong if I add AgNO3 directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.

Tweeted twitter.com/StackChemistry/status/765477764132732928
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user33495
user33495

Carius method for quantitative analysis of halogens

enter image description here

Carius method: A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as Carius tube, (Fig.12.17) in a furnace

I want to know :

  1. What is the significance of using HNO3 ? Can we carry out oxidation with other acids like H2So4?
  2. Why AgNO3 is added to HNO3 and not to the organic compound? Will it be wrong if I add AgNO3 directly to the organic compound after it is subjected to fuming nitric acid?
  3. Wouldn't precipitation of compounds other than that of halogens occur since we are carrying the reaction in a closed furnace?

Any help is greatly appreciated.