Nanjing Chemical Material Corp.

Preparation Of Ammonium Iodide​ Preparation Of Ammonium Iodide​

254 g of potassium iodide dissolved in 125 ml of water are mixed with 100 g of ammonium sulfate dissolved in 125 ml of boiling water.

After cooling, 40 ml of alcohol are added and the mixture is kept 12 hours. The obtained precipitate of potassium sulfate is filtered and the filtrate is evaporated occasionally adding ammonia water containing some alcohol, until crystallization begins.

The crystals of potassium sulfate are additionally washed with dilute alcohol (20%), and after combining the filtrates and evaporation the ammonium iodide is obtained. Ammonium iodide crystallizes in cubes and deliquesces in the air. It should be preserved in a dark place, as light decomposes the salt, causing it to turn brown. This coloration may be removed by dissolving in distilled water, treating the solution with ammonium sulfide, filtering, and evaporating the filtrate on the steam bath, to crystallize. It is readily soluble in alcohol.

The aqueous solution becomes yellow on standing, owing to decomposition and separation of iodine.

One part of the salt dissolves in 0.60 part of water.

Preparation Of Ammonium Iodide

Related News
  • The Development of New Surfactants Will Be a Trend

    The Development of New Surfactants Will Be a Trend

    March 4, 2021With the growth of the global population and the consumption of non-renewable resources, more attention and rapid development will be paid to the production of surfactants with excellent performance a...view
  • 2018 NCMC Sports Meeting

    2018 NCMC Sports Meeting

    January 29, 2019Before the summer heat arrives at Nanjing, 2018 NCMC sports meeting is held on 27th May with the purpose of enriching the amateur life of employees as well as enhancing team cooperation.This sports me...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
  • Linear Alkyl Benzene(LAB)

    Linear Alkyl Benzene(LAB)

    October 13, 2021Linear Alkyl Benzene(LAB) is a colorless or yellowish transparent liquid without suspended matter.Its chemical properties are stable.Flash point above 100℃; Alkyl benzene sulfonic acid is easily sulf...view
  • What Are the Negative Effects of Glycolic Acid? Are There Any Precautions?

    What Are the Negative Effects of Glycolic Acid? Are There Any Precautions?

    May 17, 20221. How often should you use glycolic acid?How often should I use glycolic acid? The best answer given is to use as much as you can tolerate. Depending on skin type and skin condition, glycolic acid sh...view
  • An Introduction of Ethyl Iodide Cas No

    An Introduction of Ethyl Iodide Cas No

    September 24, 2020Ethyl iodide cas no is a colorless and flammable compound. Its chemical formula is C2H5I, which is prepared by heating ethanol with iodine and phosphorus. When it comes into contact with air, especial...view
  • TEL:+86-25-52337978
  • EMAIL:
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China