Ammonium muriate fume

Synonyms/Trade Names Ammonium chloride. Ammonium muriate fume. Sal ammoniac fume ... 

AMMONIUM CHLORIDE (FUME) (NH4CI, SMILES [H][Ni([H])([CH])[H].[C -]) Alternative Names/Abbreviations Ammonium muriate fume... 

AMMONIUM MURIATE (12125-02-9) Can be self-reactive explosion may occur when closed containers are opened after long storage. Contact with water can cause a violent reaction with heat and formation of hydrogen chloride. Violent reaction with boron trifluoride, boron pentafluoride, bromine trifluoride, iodine heptafluoride, potassium chlorate. Mixture with hydrogen cyanide may form explosive nitrogen trichloride. Incompatible with alkalis, alkali carbonates, acids, salts of lead or silver. At fire temperature conditions, fumes corrode metals. 

For the HCI salt Do exactly as above except use 6N Hydrochloric Acid. 6N HCI may be produced by diluting 60.4mL of "Muriatic Acid" to lOOmL with distilled water. Evaporate the bubbler solution to dryness then add 15ml of water, lOmL 10% NaOH soln. and heat gently to a boil with constant motion until dense white fumes appear. This will remove the Ammonium Chloride. Remove from heat while stirring as it cools down. Pulverize the dry residue, then reflux with absolute Ethanol for several minutes. Filter the refluxed soln. on a heated Buchner or Hirsch funnel, then distill the alcohol off the filtrate until crystals just begin to form. Allow the soln. to cool naturally to room temperature, then cool further in an ice bath. Filter the solution on a chilled Buchner funnel with suction. The yield of Meth iamine Hydrochloride should be around 55% of the theoretical. 

In the direct neutralization process, ammonia is distributed using a perforated pipe (sparger) positioned beneath the bed of material in the granulator. If sulfuric acid is used, it too is usually distributed through a sparger beneath the bed of material whereas the phosphoric acid, if used, is most often sprayed or dribbled on top of the bed of material. When sulfuric acid is used, precautions should be taken to ensure that the acid is added at a particular location with respect to the ammonia to ensure quick and uniform neutralization and thus minimize the unwanted reaction of sulfuric acid with muriate of potash (MOP) that is usually present in most NPK formulations. This acid/MOP reaction causes the formation of very corrosive hydrochloric acid, which reacts rapidly with ammonia to form a dense fume of ammonium chloride that is very difficult and costly to collect in the plant s emission control (scrubbing) system. 

---