Uranyl nitrate
Properties, data and information sources.
Contents
Names and Identifiers
Formula
H2N2O8U
UO2(NO3)2
Molar mass
396.051 (g/mol)
CAS registry number
10102-06-4
EC number EINECS
233-266-3
InChI Key
MKYNHKOAYQRSBD-UHFFFAOYSA-N
Systematic name
Bis(nitrato-O,O′)dioxouranium
Other names, synonyms
Uranium nitrate; Yellow salt; Dioxouranium(2+) dinitrate
Chemical formulas
Molecular formula and structural formula of Uranyl nitrate:
H2N2O8U or UO2(NO3)2
Mr = 396.0509 g/mol
Bis(nitrato-O,O′)dioxouranium
SMILES: [N+](=O)(O)[O-].[N+](=O)(O)[O-].O=[U]=O
Data and Properties
Pure uranyl nitrate exists as a lemon-yellow, yellow-green fluorescent, hygroscopic solid.
solubility:+ Very soluble in
water, alcohol, ether,
acetone.
- Hardly soluble in
benzene,
toluene,
chloroform.
decomposition temperature
> 100 °C
density
2.81 g cm-3 at 20 °C
Percentage and isotopic composition:
Mass-related elemental composition and isotope proportions of the compound Uranyl nitrate - H2N2O8U - calculated based on molecular mass.
Symbol
Element ENumber x
of atoms ExData of the element
and isotopes *Percentages
of isotopesPercentage of
Ex in formula massH
Hydrogen2 Ar = 1.008 u
ΣAr = 2.016 u
3H: 3.01605 u [<< 1 %]
1H: 1.00783 u [99,99 %]
2H: 2.0141 u [0,01 %]
3H: trace
1H: 0.50897 %
2H: 5.0E-5 %
0.5090 %N
Nitrogen2 Ar = 14.007 u
ΣAr = 28.014 u
14N: 14.00307 u [99,6205 %]
15N: 15.00011 u [0,3795 %]
14N: 7.04649 %
15N: 0.02684 %
7.0733 %O
Oxygen8 Ar = 15.999 u
ΣAr = 127.992 u
16O: 15.99491 u [99,757 %]
17O: 16.99913 u [0,03835 %]
18O: 17.99916 u [0,205 %]
16O: 32.23853 %
17O: 0.01239 %
18O: 0.06625 %
32.3171 %U
Uranium1ΣAr = 238.02891 u
234U: 234.04095 u [0,0054 %]
235U: 235.04393 u [0,7204 %]
238U: 238.05079 u [99,2742 %]
234U: 0.00325 %
235U: 0.43296 %
238U: 59.66437 %
60.1006 % *) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.
More calculated data
The molar mass is M = 396.05091 grams per mole.
The amount of substance in one kilogram of the substance is n = 2.525 mol.
The amount of substance in one gram of the substance is n = 0.003 mol.
Monoisotopic mass: 396.0319026429 Da - related to 1H214N216O8238U.
Hazard warnings according to GHS
(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.
Signal word: Danger
GHS hazard statements (H phrases):
H300
Fatal if swallowed
H330
Fatal if inhaled
H373
May cause damage to organs through prolonged or repeated exposure
H411
Toxic to aquatic life with long lasting effects
Labeling in the EU: See ECHA Substance Infocard 100.030.229.
For toxicology and occupational safety when handling Uranyl nitrate as well as measures to be taken in case of danger, see: Hazardous Substances Information System GESTIS, ZVG-Nr. 005530.
External Sources
PubChem:ID 24933ChemSpider:ID 21489944UNII of the FDA (USA):Unique Ingredient Identifier CCRIS 9485EPA CompTox Chemicals Dashboard:DTXSID2037136Other CAS RN:12778-24-4; 132489-22-6; 17457-94-2; 17457-95-3; 18432-58-1; 203984-59-2; 22378-80-9; 29893-55-8; 44968-12-9; 44973-08-2; 45839-42-7; 796002-97-6 (also used, outdated or deleted registration numbers)
Manufacturers and Sources of Supply
The table below lists producers and suppliers of Uranyl nitrate as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.
Last update: 2025-11-30
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