Hydroxylammonium nitrate

Hydroxylammonium nitrate or hydroxylamine nitrate (HAN) is an inorganic compound with the chemical formula [NH3OH]+[NO3]−. It is a salt derived from hydroxylamine and nitric acid. In its pure form, it is a colourless hygroscopic solid. It has potential to be used as a rocket propellant either as a solution in monopropellants or bipropellants. Hydroxylammonium nitrate (HAN)-based propellants are a viable and effective solution for future green propellant-based missions, as it offers 50% higher performance for a given propellant tank compared to commercially used hydrazine.

Hydroxylammonium nitrate
Names
Other names
hydroxylamine nitrate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.342
EC Number
  • 236-691-2
  • InChI=1S/NO3.H4NO/c2-1(3)4;1-2/h;2H,1H3/q-1;+1 Y
    Key: CRJZNQFRBUFHTE-UHFFFAOYSA-N Y
  • InChI=1/NO3.H4NO/c2-1(3)4;1-2/h;2H,1H3/q-1;+1
    Key: CRJZNQFRBUFHTE-UHFFFAOYAP
  • [NH3+]O.[N+](=O)([O-])[O-]
Properties
[NH3OH]+[NO3]−
Molar mass 96.04 g/mol
Density 1.84 g/cm3
Melting point 48 °C
Soluble
Hazards
GHS labelling:
Danger
H201, H302, H311, H315, H317, H319, H351, H373, H400
P201, P202, P210, P230, P240, P250, P260, P261, P264, P270, P272, P273, P280, P281, P301+P312, P302+P352, P305+P351+P338, P308+P313, P312, P314, P321, P322, P330, P332+P313, P333+P313, P337+P313, P361, P362, P363, P370+P380, P372, P373, P391, P401, P405, P501
Safety data sheet (SDS) External MSDS (as 18 % solution)
Related compounds
Other anions
 Hydroxylammonium sulfate
Hydroxylammonium chloride
Other cations
 Ammonium nitrate
Related compounds
 Hydroxylamine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references
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