uses of ammonia (1 Viewer)

[*sarah*]

identify and describe the uses of ammonia

i get the identify - fertilisers, plastics manufacture etc, but what about the describe?
any ideas?

thanks

 

[BlackJack]

I'd say they're looking for an explanation on how you use NH3.

You can say how it is added into ferterlisers, as ammonium ions right?
Ammonia was required for manufacturing explosives too, so I suppose you can give a reaction and/or some sort of energy release (delta H) and justify the reaction.
This would apply for plastics, you may give examples of compounds containing nitrogen (nylon?) and talk about how NH3 is incorporated into processes.

I help so much... *sarcastic*

 

[smegthehead]

the ammonium can be oxidised to form nitric acid, which could then be converted back into nitrogenous salts. These salts are used in fertilisers, nitroglycerine (TNT), and in cyanides for polymers such as nylon

 

[Tommy_Lamp]

IDENTIFY: Ammonia is used to make solid and liquid fertilisers, explosives, nitric acid, sodium carbonate, some pharmaceuticals and household cleaners. It is also used as a refrigerant.
DESCRIBE: To make solid fertilizer industrially, ammonia, which is a weak base, is reacted with sulfuric acid to form ammonium sulfate fertiliser and with nitric acid to form ammonium nitrate fertiliser.

 

[Researcher88]

Ammonia...

Ammonia is highly soluble in water, forming an alkaline solution called ammonium hydroxide. Moreover, it becomes highly reactive when dissolved in water and readily combines with
many chemicals. Ammonia is easily liquefied by compression or by cooling to about -33° C (-27.4° F). In returning to the gaseous state, it absorbs substantial amounts of heat from its surroundings (i.e., one gram of ammonia absorbs 327 calories of heat). Because of this property, it is frequently employed as a coolant in refrigerating and air-conditioning equipment.


The chief commercial method of producing ammonia is by the Haber-Bosch process, which involves the direct synthesis of the compound from its constituent elements. Ammonia from the
Haber-Bosch process is supplemented by ammonia obtained as a by-product of coke ovens.
The major use of ammonia is as a fertilizer. It is most commonly applied directly to the soil from tanks containing the liquefied gas. Additional quantities are converted into ammonium nitrate,
ammonium phosphate, and other salts that also are utilized primarily in commercial fertilizers. In the textile industry ammonia is used in the manufacture of synthetic fibers such as nylon and rayon. In addition, it is employed in the dyeing and scouring of cotton, wool, and silk. Ammonia serves as a catalyst in the production of Bakelite and some other synthetic resins. More importantly, it neutralizes acidic by-products of petroleum refining, and in the rubber industry it prevents the coagulation of raw latex during transportation from plantation to factory. Ammonia also finds application in both the ammonia-soda, or Solvay, process, a widely used method for producing soda ash, and the Ostwald process, a method for converting ammonia into nitric acid. Ammonia is used in various metallurgical processes, including the nitriding of alloy sheets to harden their surfaces. Because ammonia can be decomposed easily to yield hydrogen, it is a convenient
portable source of atomic hydrogen for welding. Finally, among its minor uses is inclusion in certain household cleansing agents.

 

[jamesy_1988]

make sure that you don't forget that ammonia is used to make nitric acid, ammonium nitrate (main ingredient in many explosives) and fertilizers

Jamesy