Rubidium amide

Structural formula
General
Surname	Rubidium amide
Molecular formula	RbNH 2
Brief description	white deliquescent crystals
External identifiers / databases
Wikidata	Q745794
properties
Molar mass	101.49 g · mol -1
Physical state	firmly
density	2.59 g cm −3
Melting point	309 ° C
solubility	reacts with water
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Rubidium amide is a chemical compound made of rubidium , nitrogen and hydrogen .

Manufacturing

Rubidium amide is formed when the metal is heated in the ammonia stream.

${\ displaystyle \ mathrm {2 \ Rb + 2 \ NH_ {3} \ longrightarrow \ 2 \ RbNH_ {2} + \ H_ {2} \ uparrow}}$

It is also formed by the reaction of rubidium hydride with liquid ammonia with evolution of hydrogen. The reaction with gaseous ammonia takes place very slowly at room temperature.

{\ displaystyle \ mathrm {RbH + NH_ {3} \ longrightarrow RbNH_ {2} + H_ {2} \ uparrow}}

When heating rubidium in a nitrogen stream arises also Rubidiumamid, as a byproduct, however, is in no small quantities Rubidiumnitrid .

properties

Physical Properties

Rubidium amide crystallizes in the cubic crystal system in the space group Fm 3 m (space group no. 225) with the lattice parameter a = 639.5 pm. Template: room group / 225

Chemical properties

Rubidium amide reacts with water to form ammonia and rubidium hydroxide .

${\ displaystyle \ mathrm {RbNH_ {2} + H_ {2} O \ longrightarrow \ RbOH + \ NH_ {3} \ uparrow}}$

With ethanol to form Rubidiumethanolat and ammonia.

${\ displaystyle \ mathrm {RbNH_ {2} + C_ {2} H_ {5} OH \ longrightarrow \ C_ {2} H_ {5} ORb + \ NH_ {3} \ uparrow}}$

Individual evidence

↑ ^a ^b ^c R. Abegg, F. Auerbach: 'Handbuch der inorganic Chemie'. Verlag S. Hirzel, Vol. 2, 1908. P. 430. Full text
↑ ^a ^b ^c ^d ^e Jean D'Ans, Ellen Lax: Paperback for chemists and physicists. 3. Elements, inorganic compounds and materials, minerals, Volume 3. 4. Edition, Springer, 1997, ISBN 978-3-5406-0035-0 , pp. 688f. ( limited preview in Google Book search).
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ H. Moissan: "Preparation et propriétés des hydrures de rubidium et de césium" in Compt. Rend. Hebd. 1903 , 136 , p. 587. Full text

[Abegg-1] R. Abegg, F. Auerbach: 'Handbuch der inorganic Chemie'. Verlag S. Hirzel, Vol. 2, 1908. P. 430. Full text

[Lax-2] Jean D'Ans, Ellen Lax: Paperback for chemists and physicists. 3. Elements, inorganic compounds and materials, minerals, Volume 3. 4. Edition, Springer, 1997, ISBN 978-3-5406-0035-0 , pp. 688f. ( limited preview in Google Book search).

[NV-3] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[Moissan-4] H. Moissan: "Preparation et propriétés des hydrures de rubidium et de césium" in Compt. Rend. Hebd. 1903 , 136 , p. 587. Full text