Barium Nitride

Barium Nitride
Barium Nitride
General
Systematic ; name	Barium Nitride
Traditional names	Tribaria dinitrite, barium nitrogen
Chem. formula	Ba 3 N 2
Physical properties
condition	white crystals; tan crystals
Molar mass	440.03 g / mol
Density	6.1; 4.783 g / cm³
Thermal properties
T. melt.	~ 1000 ° C
Classification
Reg. CAS number	12047-79-9
Reg. EINECS number

Barium nitride is a binary inorganic compound of nitrogen and barium with the formula Ba ₃ N ₂ . White or tan crystals. It smells like ammonia in humid air.

Content

1 Receiving
2 Physical properties
3 Chemical properties
4 Literature

Getting

Dry nitrogen passing over barium:

{\mathsf {3\ Ba+N_{2}\ {\xrightarrow {160^{o}C}}\ Ba_{3}N_{2}}}

{\ displaystyle {\ mathsf {3 \ Ba + N_ {2} \ {\ xrightarrow {160 ^ {o} C}} \ Ba_ {3} N_ {2}}}}

Thermal decomposition of barium amide :

{\mathsf {3\ Ba(NH_{2})2\ {\xrightarrow {430^{o}C}}\ Ba_{3}N_{2}+4\ NH_{3}}}

{\ displaystyle {\ mathsf {3 \ Ba (NH_ {2}) 2 \ {\ xrightarrow {430 ^ {o} C}} \ Ba_ {3} N_ {2} +4 \ NH_ {3}}}}

The interaction of barium hydride with nitrogen:

{\mathsf {3\ BaH_{2}+N_{2}\ {\xrightarrow {600^{o}C}}\ Ba_{3}N_{2}+3\ H_{2}}}

{\ displaystyle {\ mathsf {3 \ BaH_ {2} + N_ {2} \ {\ xrightarrow {600 ^ {o} C}} \ Ba_ {3} N_ {2} +3 \ H_ {2}}}}

Physical Properties

Barium nitride forms solid white (according to other sources, yellow-brown) crystals, which smell of ammonia in moist air.

Chemical Properties

When heated, melts with decomposition:

{\mathsf {2\ Ba_{3}N_{2}\ {\xrightarrow {1000^{o}C}}\ 3\ Ba_{2}N+2\ N_{2}}}

{\ displaystyle {\ mathsf {2 \ Ba_ {3} N_ {2} \ {\ xrightarrow {1000 ^ {o} C}} \ 3 \ Ba_ {2} N + 2 \ N_ {2}}}}

Reacts with water:

{\mathsf {Ba_{3}N_{2}+6\ H_{2}O\ {\xrightarrow {\ }}\ 3\ Ba(OH)_{2}+2\ NH_{3}\uparrow }}

{\ displaystyle {\ mathsf {Ba_ {3} N_ {2} +6 \ H_ {2} O \ {\ xrightarrow {\}} \ 3 \ Ba (OH) _ {2} +2 \ NH_ {3} \ uparrow}}}

and acids:

{\mathsf {Ba_{3}N_{2}+8\ HCl\ {\xrightarrow {\ }}\ 3\ BaCl_{2}+2\ NH_{4}Cl}}

{\ displaystyle {\ mathsf {Ba_ {3} N_ {2} +8 \ HCl \ {\ xrightarrow {\}} \ 3 \ BaCl_ {2} +2 \ NH_ {4} Cl}}}

Oxidized by oxygen:

{\mathsf {2\ Ba_{3}N_{2}+6\ O_{2}\ {\xrightarrow {500^{o}C}}\ 3\ BaO+2\ N_{2}}}

{\ displaystyle {\ mathsf {2 \ Ba_ {3} N_ {2} +6 \ O_ {2} \ {\ xrightarrow {500 ^ {o} C}} \ 3 \ BaO + 2 \ N_ {2}}} }

Literature

Chemistry Handbook / Editorial: Nikolsky B.P. et al. - 3rd ed., rev. - L .: Chemistry, 1971. - T. 2. - 1168 p.
Ripan R., Chetyanu I. Inorganic chemistry. Chemistry of metals. - M .: Mir, 1971. - T. 1. - 561 p.