SODIUM AMIDE NaNH2

Properties of Sodium amide NaNH2:

Sodamide. White. Melts without decomposition, sublimes readily, on further heating decomposes. Oxidized in air, and turn yellow (the products are unknown). Poorly soluble in liquid ammonia. Completely hydrolyzed in water, reacts with acids.


Obtaining sodium amide:

2Na + 2 NH3 (gas) = 2NaNH2 + H2 (350°C).

NaH + NH3 (gas) = NaNH2 + H2 (350°C).

NaN3 + H2 = NaNH2 + N2 (200°C, impurity NH3, catalyst Pt).


Reactions with sodium amide:

6 NaNH2 = 6Na + 4NH3 + N2 (500-600°C).

NaNH2 + 2H2O(cold) = NaOH + NH3-H2O

NaNH2 + H2O(hot) = NaOH + NH3↑.

NaNH2 + 2HСl (diluted) = NaCl + NH4Cl.

NaNH2 + 2 HNO3 = NaN3 + NaNO3 + 3H2O (boiling).

NaNH2 + C (coke) = NaCN + H2 (500-600°C).

NaNH2 + NH4Cl = 2NH3 + NaCl (at -40°C, in the liquid NH3).


 

Did you know?

Covanlent radius is the distance from the center of the nucleus to the outer valence shell of that atom.