Ammonia is a colourless, toxic gas and dissolve very well in water. Ammonia gas can be prepared in the laboratory by different other compounds. In industrial scale, ammonia gas is manufactured by haber method
Ammonia has a very important place in chemistry because it is used in many applications in the chemical industry. Ammonia has very different characteristics in behavior such as acting as an acid, base, oxidizing agent, reducing agent and more.
In this tutorial, we are going to learn about characteristics and preparation of ammonia gas in laboratories.
When NH3 gas is sent to the water, aqueous ammonium hydroxide (NH4OH) solution is given. Aqueous ammonium hydroxide is a weak basic solution.
Inhaling ammonia can cause death.
Ammonia is manufactured industrially in large scale, but it can be prepared in the laboratory also. Ammonia is toxic gas and should be careful when it is being prepared.
Ammonia is produced by haber method in the industrial level. Hydrogen (H2)
and nitrogen(N2) are used as raw materials to produce ammonia in haber method.
Learn haber method.
Ammonia can be prepared by following methods.
Add strong bases such as NaOH(aq), KOH(aq) to NH4Cl aqueous solution. Ammonia gas is emitted as one product. Approximating lid of concentrated HCl bottle to the emitting ammonia gas will give NH4Cl white fog.
Add water to magnesium nitride (Mg3N2) and heat the solution. It will give ammonia gas. Mg(OH)2 white precipitate is deposited as other product.
Heat NaNO3, Al and NaOH(aq) mixture. Nitrate ion (NO3-) is reduced to NH3 and Al is oxidized.
Related Topics to NH3