Nanjing Chemical Material Corp.
Service
Products

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
  • Characteristics of China (3-Glycidoxypropyl)trimethoxysilane

    Characteristics of China (3-Glycidoxypropyl)trimethoxysilane

    July 6, 2020Characteristics and advantages of China (3-Glycidoxypropyl)trimethoxysilane:1. With epoxy functionA) Epoxy ring can react with many organic functional groups.B) Epoxy functional groups will provide a ...view
  • Preparation of Ethyl Iodide

    Preparation of Ethyl Iodide

    April 29, 2019Ethyl iodide is usually reacted with ethanol, iodine and red phosphorus, but the reaction is slow, and it needs to be heated in a reflux device for several hours.view
  • What is GLycolic Acid?

    What is GLycolic Acid?

    March 13, 2019We like to focus on the ingredients of beauty products. But we prefer to touch the product and explore whether it really works.view
  • Application of α-olefin Sulfonate

    Application of α-olefin Sulfonate

    April 21, 2020AOS (α-olefin sulfonate sodium salt) has very good comprehensive properties. It has mature technology, reliable quality and good detergency. Especially in hard water, it also shows the characteristic...view
  • Methyl Iodide Residual

    Methyl Iodide Residual

    April 15, 2020Methyl iodide has been highlighted as a potential genotoxic impurity (PGI).view
  • Green City, Green Development

    Green City, Green Development

    January 29, 2019June 5th, 2018On the 47th World Environment Day, June 5 th, a large public service activity, "Green City, Green Development" is held in the square of Nanjing Dujiang Victory War Memorial Hall. The the...view
  • TEL:+86-25-52337978
  • EMAIL: info@njchm.com
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China