The Production Process of 3-Pyridinethiol,2-amino-(9CI)

3-Pyridinethiol,2-amino-(9CI) is a chemical compound that is commonly used in various industrial processes.
The production process of this compound involves several steps that are carefully planned and executed to ensure the quality and purity of the final product.
In this article, we will discuss the production process of 3-Pyridinethiol,2-amino-(9CI) in detail.

Step 1: Preparation of raw materials
The production of 3-Pyridinethiol,2-amino-(9CI) starts with the preparation of raw materials.
The raw materials used in the production process include pyridine, thioglycolic acid, and sodium hydroxide.
These materials are carefully weighed and mixed in the correct proportions to ensure that the final product meets the desired specifications.

Step 2: Condensation reaction
The next step in the production process is the condensation reaction.
In this step, pyridine and thioglycolic acid are reacted in the presence of a condensing agent, such as conc.
hydrochloric acid.
The reaction produces 2-amino-thiopyridine-3-carboxylic acid, which is then neutralized with sodium hydroxide to produce 3-Pyridinethiol,2-amino-(9CI).

Step 3: Purification
The 3-Pyridinethiol,2-amino-(9CI) produced in the previous step is not pure and requires purification to remove any impurities that may be present.
This is typically done through crystallization, which allows the pure compound to be isolated from the mixture.
The crystals are then dried and weighed to determine the yield of the final product.

Step 4: Characterization
The final step in the production process is the characterization of the 3-Pyridinethiol,2-amino-(9CI) produced.
This involves testing the physical and chemical properties of the compound to ensure that it meets the desired specifications.
Common tests include melting point, boiling point, density, and solubility.

In conclusion, the production process of 3-Pyridinethiol,2-amino-(9CI) involves several steps that are carefully planned and executed to ensure the quality and purity of the final product.
From the preparation of raw materials to the purification and characterization of the final product, each step is critical to the success of the production process.
By following these steps, the production of 3-Pyridinethiol,2-amino-(9CI) can be carried out efficiently and effectively, providing the chemical industry with a valuable compound for various industrial processes.