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Nitrates and nitrites

Uranyl nitrate

Also known as Nitrate, Uranyl, Nitrate, Uranium, dioxouranium dinitrate

CAS 10102-06-4Formula N2O8UMolar mass 394.04 g/molEC 233-266-3
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard, Hazardous to the environment
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Uranyl nitrate chemical structure, N2O8U, CAS 10102-06-4
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellow, rhombic crystals
Melting point
60.2 °C
Boiling point
118 °C
Density
2.81 at 55.4 °F - Denser than water, will sink
Solubility
Soluble in water and oxygenated solvents
HS code
284410
Category
Nitrates and nitrites
Illustrative photo, yellow pigment powder in a glass jar on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Uranyl nitrate?

Plain description, key identifiers and synonyms

Uranyl nitrate appears as a yellow rhombic radioactive crystal. Radioactive materials emit certain rays that can only be detected by instruments. Mildly chemically toxic. Unirradiated uranium is only mildly radioactive. Packages require no protective shielding. Noncombustible, but may accelerate the burning of combustible materials. Produces toxic oxides of nitrogen when involved in fires. Used to produce ceramic glazes.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dioxouranium(2+) dinitrate
CAS number
10102-06-4Other or deprecated CAS: 36478-76-9
EC numbers
233-266-3, 253-053-9
Molecular formula
N2O8U
InChIKey
ZYEWBKAZYICUMJ-UHFFFAOYSA-N
InChI
InChI=1S/2NO3.2O.U/c2*2-1(3)4;;;/q2*-1;;;+2
SMILES (canonical and isomeric)
[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O=[U+2]=O

Synonyms

  • Nitrate, Uranyl
  • Nitrate, Uranium
  • dioxouranium dinitrate
  • Uranium, bis(nitrato-O,O')dioxo-(solid)
  • Bis(nitrato)dioxouranium
  • Dinitratodioxouranium
  • Uranium nitrate oxide (UO2(NO3)2)
  • Uranium oxynitrate
  • URANIUM, BIS(NITRATO-kappaO)DIOXO-, (T-4)-
  • Uranium, bis(nitrato-O)dioxo-, (T-4)-
  • Uranium, bis(nitrato-O,O')dioxo-, (OC-6-11)-
  • Uranium, dinitratodioxo-
  • Uranyl dinitrate
  • Uranyl nitrate (UO2(NO3)2)
  • Yellow salt

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Yellow, rhombic crystalsexp.
Melting point
60.2 °Cexp.
Boiling point
118 °Cexp.
Density
2.81 at 55.4 °F - Denser than water, will sinkexp.
Solubility
Soluble in water and oxygenated solventsexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
394.04 g/molcalc.
Exact mass
394.0163 Dacalc.
LogP (octanol/water)
-0.72calc.
Topological polar surface area
166.5 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
0calc.
Heavy atoms
11calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
3calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H300 + H330Fatal if swallowed. Fatal if inhaled.
  • H300Fatal if swallowed.
  • H330Fatal if inhaled.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (17)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

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Uranyl nitrate price

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Uses and applications

What the substance is used for, by industry and function

Intensifier in photography, manufacturing uranium glaze, decorating porcelain, also as reagent in analytical chemistry.

Source of uranium dioxide, extraction of uranium into non-aqueous solvents. (Hexahydrate).

Recovery of uranium from process waste and in the reprocessing of irradiated fuels.

Formerly used to small extent medicinally, but this use was abandoned as it is too dangerous.

Porcelain glaze ingredient.

How it is made

Action of nitric acid on uranium octoxide (U3O8). (Hexahydrate)

Nuclear fuel, spent (extraction/separation)

Yellow cake + nitric acid (dissolution)

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Uranyl nitrate is traded under.

HS 2844.10Indicative HS code

Natural uranium and its compounds, alloys, dispersions (including cermets), ceramic…

World exports in 2024
$7.66B
+47.4% vs 2023, imports $7.29B
2019 to 2024
Top exporters
  1. Canada42.9%
  2. Kazakhstan * partner reported27.8%
  3. United States12.6%
Top importers
  1. China31.8%
  2. United States21.6%
  3. Netherlands17.7%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Uranyl nitrate is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Uranyl nitrate, based on the data on this page

What is Uranyl nitrate?

Uranyl nitrate appears as a yellow rhombic radioactive crystal. Radioactive materials emit certain rays that can only be detected by instruments. Mildly chemically toxic. Unirradiated uranium is only mildly radioactive. Packages require no protective shielding.

What is the CAS number of Uranyl nitrate?

The CAS registry number of Uranyl nitrate is 10102-06-4. Other or deprecated CAS numbers: 36478-76-9.

What is the molecular formula and weight of Uranyl nitrate?

The molecular formula of Uranyl nitrate is N2O8U and its molar mass is 394.04 g/mol.

What is Uranyl nitrate used for?

Intensifier in photography, manufacturing uranium glaze, decorating porcelain, also as reagent in analytical chemistry. Source of uranium dioxide, extraction of uranium into non-aqueous solvents. (Hexahydrate). Recovery of uranium from process waste and in the reprocessing of irradiated fuels.

Is Uranyl nitrate hazardous?

Uranyl nitrate carries the GHS signal word "Danger". Main hazards: fatal if swallowed. fatal if inhaled, fatal if swallowed, fatal if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Uranyl nitrate?

Uranyl nitrate is usually classified under HS code 284410 (Natural uranium and its compounds, alloys, dispersions (including cermets), ceramic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Uranyl nitrate?

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What is the price of Uranyl nitrate?

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Guides for buyers

Practical guides that help when you source, ship or handle Uranyl nitrate

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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