Names | |
---|---|
IUPAC name
Hydrazinium azide
| |
Identifiers | |
3D model (
JSmol)
|
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PubChem
CID
|
|
CompTox Dashboard (
EPA)
|
|
| |
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Properties | |
H5N5 | |
Molar mass | 75.075 g·mol−1 |
Appearance | White solid |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Hydrazinium azide or hydrazine azide is a
chemical compound with formula H
5N
5 or [N
2H+
5[N−
3. It is a
salt of the
hydrazinium
cation N
2H+
5 and the
azide
anion N−
3. It can be seen as a derivative of
hydrazine N
2H
4 and
hydrazoic acid HN
3. It is an unstable solid.
The compound is of scientific interest because of its high nitrogen content (93% nitrogen by weight) and explosive properties. [1]
The solid undergoes structural phase transition to a different crystalline arrangement at a pressure of 13 G Pa. [2]
Hydrazinium azide decomposes explosively into hydrazine, ammonia, and nitrogen gas: [3]
Crystallization with an equimolar amount hydrazine yields the solid hydrazinium azide hydrazinate, [N
2H+
5[N−
3·[N
2H
4, or N
7H
9, as
monoclinic crystals. This compound is less hygroscopic and less volatile than pure hydrazinium azide. It decomposes explosively into nitrogen,
hydrogen, and ammonia.
[4]
At pressure of 40 GPa, hydrazinium azide decomposes yielding a linear nitrogen allotrope N
8 or N≡−−N=N−−≡N, that decomposes to
ε-N2 below 25 GPa.
[2]
Reaction of hydrazinium azide with sulfuric acid gives quantitative yields of pure hydrazinediium sulfate and hydrazoic acid: [5]
Names | |
---|---|
IUPAC name
Hydrazinium azide
| |
Identifiers | |
3D model (
JSmol)
|
|
PubChem
CID
|
|
CompTox Dashboard (
EPA)
|
|
| |
| |
Properties | |
H5N5 | |
Molar mass | 75.075 g·mol−1 |
Appearance | White solid |
Except where otherwise noted, data are given for materials in their
standard state (at 25 °C [77 °F], 100 kPa).
|
Hydrazinium azide or hydrazine azide is a
chemical compound with formula H
5N
5 or [N
2H+
5[N−
3. It is a
salt of the
hydrazinium
cation N
2H+
5 and the
azide
anion N−
3. It can be seen as a derivative of
hydrazine N
2H
4 and
hydrazoic acid HN
3. It is an unstable solid.
The compound is of scientific interest because of its high nitrogen content (93% nitrogen by weight) and explosive properties. [1]
The solid undergoes structural phase transition to a different crystalline arrangement at a pressure of 13 G Pa. [2]
Hydrazinium azide decomposes explosively into hydrazine, ammonia, and nitrogen gas: [3]
Crystallization with an equimolar amount hydrazine yields the solid hydrazinium azide hydrazinate, [N
2H+
5[N−
3·[N
2H
4, or N
7H
9, as
monoclinic crystals. This compound is less hygroscopic and less volatile than pure hydrazinium azide. It decomposes explosively into nitrogen,
hydrogen, and ammonia.
[4]
At pressure of 40 GPa, hydrazinium azide decomposes yielding a linear nitrogen allotrope N
8 or N≡−−N=N−−≡N, that decomposes to
ε-N2 below 25 GPa.
[2]
Reaction of hydrazinium azide with sulfuric acid gives quantitative yields of pure hydrazinediium sulfate and hydrazoic acid: [5]