Chemical Datasheet
URANYL NITRATE |
Chemical Identifiers
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Chemical Identifier fields
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| CAS Number | UN/NA Number | DOT Hazard Label | USCG CHRIS Code |
|---|---|---|---|
|
none | data unavailable | |
| NIOSH Pocket Guide | International Chem Safety Card | ||
Uranium (soluble compounds, as U)
|
none | ||
NFPA 704
data unavailable
General Description
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.
Hazards
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Hazard fields
include
special hazard alerts
air and water
reactions, fire hazards, health hazards, a reactivity profile, and
details about
reactive groups assignments
and
potentially incompatible absorbents.
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Reactivity Alerts
- Strong Oxidizing Agent
- Radioactive Material
Air & Water Reactions
Dissolves in water to form a weak solution of nitric acid, the reaction is not hazardous.
Fire Hazard
Special Hazards of Combustion Products: Toxic oxides of nitrogen formed in fires.
Behavior in Fire: Intensifies fires. When large quantities are involved, nitrate may fuse or melt; application of water may then cause extensive scattering of molten material. (USCG, 1999)
Behavior in Fire: Intensifies fires. When large quantities are involved, nitrate may fuse or melt; application of water may then cause extensive scattering of molten material. (USCG, 1999)
Health Hazard
Excessive inhalation of dust may cause irritation of lungs and delayed symptoms similar to those observed after ingestion. Dust irritates eyes and skin and may be absorbed through skin on prolonged exposure. Ingestion causes irritation of mouth and stomach; inflammation of kidney and liver develops 1 to 4 days after exposure. (USCG, 1999)
Reactivity Profile
Mixtures of metal/nonmetal nitrates with alkyl esters may explode, owing to the formation of alkyl nitrates; mixtures of the nitrate with phosphorus, tin (II) chloride, or other reducing agents may react explosively [Bretherick 1979. p. 108-109]. Diethyl ether and uranyl nitrate have been involved in several explosion and fire incidents [Nucl. Sci. Abs., 1976, 33], 19790 [J. Amer. Chem. Soc., 1912, 34, 1686].
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents
Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below. More info about absorbents, including situations to watch out for...
- Cellulose-Based Absorbents
- Expanded Polymeric Absorbents
Response Recommendations
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Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
Dust mask, gloves, goggles (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
INHALATION: remove victim to fresh air.
EYES: flush with water for at least 15 min.; see physician if irritation persists.
SKIN: wash thoroughly with soap and water.
INGESTION: administer large doses of sodium bicarbonate. (This will convert the uranium salt to the bicarbonate, which is much less toxic.) Additional treatment is symptomatic; get medical attention. (USCG, 1999)
EYES: flush with water for at least 15 min.; see physician if irritation persists.
SKIN: wash thoroughly with soap and water.
INGESTION: administer large doses of sodium bicarbonate. (This will convert the uranium salt to the bicarbonate, which is much less toxic.) Additional treatment is symptomatic; get medical attention. (USCG, 1999)
Physical Properties
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The
Physical Property fields
include properties such as vapor pressure and
boiling point, as well as explosive limits and
toxic exposure thresholds
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Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
Note: For Vapor Density and Specific Gravity, comparing the value to 1.0 can tell you if the chemical will likely sink/rise in air or sink/float in fresh water (respectively). Short phrases have been added to those values below as an aid. However, make sure to also consider the circumstances of a release. The Vapor Density comparisons are only valid when the gas escaping is at the same temperature as the surrounding air itself. If the chemical is escaping from a container where it was pressurized or refrigerated, it may first escape and behave as a heavy gas and sink in the air (even if it has a Vapor Density value less than 1). Also, the Specific Gravity comparisons are for fresh water (density 1.0 g/mL). If your spill is in salt water (density about 1.027 g/mL), you need to adjust the point of comparison. There are some chemicals that will sink in fresh water and float in salt water.
| Chemical Formula: |
|
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point:
140.4°F
(USCG, 1999)
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity:
2.81
at 55.4°F
(USCG, 1999)
- Denser than water; will sink
Boiling Point: data unavailable
Molecular Weight:
502.13
(USCG, 1999)
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH:
10 mg U/m3
; A potential occupational carcinogen.
(NIOSH, 2024)
AEGLs (Acute Exposure Guideline Levels)
No AEGL information available.ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.PACs (Protective Action Criteria)
| Chemical | PAC-1 | PAC-2 | PAC-3 |
|---|---|---|---|
| Uranyl nitrate (solid); (Bis(nitrato-O,O')dioxouranium) (10102-06-4) | 0.99 mg/m3 | 5.5 mg/m3 | 33 mg/m3 |
| Uranyl nitrate (yellow salt) (36478-76-9) | 0.99 mg/m3 | 5.5 mg/m3 | 33 mg/m3 |
(DOE, 2024)
Regulatory Information
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The
Regulatory Information fields
include information from
the U.S. Environmental Protection Agency's Title III Consolidated List of
Lists,
the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility
Anti-Terrorism Standards,
and the U.S. Occupational Safety and Health Administration's
Process Safety Management of Highly Hazardous Chemicals Standard List
(see more about these
data sources).
EPA Consolidated List of Lists
| Regulatory Name | CAS Number/ 313 Category Code |
EPCRA 302 EHS TPQ |
EPCRA 304 EHS RQ |
CERCLA RQ | EPCRA 313 TRI |
RCRA Code |
CAA 112(r) RMP TQ |
|---|---|---|---|---|---|---|---|
| Uranyl nitrate | 10102-06-4 | 100 pounds | |||||
| Uranyl nitrate | 36478-76-9 | 100 pounds |
(EPA List of Lists, 2024)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.OSHA Process Safety Management (PSM) Standard List
No regulatory information available.Alternate Chemical Names
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This section provides a listing of alternate names for this chemical,
including trade names and synonyms.
- DINITRATODIOXOURANIUM
- URANIUM DINITRATE DIOXIDE
- URANIUM NITRATE
- URANIUM NITRATE OXIDE (U(NO3)2O2)
- URANIUM NITRATE OXIDE (UO2(NO3)2)
- URANIUM, BIS(NITRATO-O)DIOXO-, (T-4)-
- URANIUM, BIS(NITRATO-O,O')DIOXO-, (OC-6-11)-
- URANIUM, DINITRATODIOXO-
- URANYL DINITRATE
- URANYL NITRATE
- URANYL NITRATE (UO2(NO3)2)
Web site owner:
Office of Response and Restoration,
National Ocean Service,
National Oceanic and Atmospheric Administration.
USA.gov.
CAMEO Chemicals version 3.1.0 rev 1.