1. CHEMICAL PRODUCTS AND COMPANY IDENTIFICATION

SECTION 1. IDENTIFICATION
Product Identifier
Uranium Powder
Other Means of Identification: Uranium metal powder; Uranium (U); CAS RN 7440-61-1.
CAS RN: 7440-61-1
Chemical formula: U

Recommended Use: Research, analytical, laboratory, and other authorized uses of uranium metal powder.
Restrictions on Use: For authorized professional use only. Use, possession, handling, storage, and transport are subject to applicable radioactive-material, nuclear-material, hazardous-material, and occupational-safety requirements.

Supplier
International Bio-Analytical Industries, Inc.
3495 N. Dixie Highway, Unit 8
Boca Raton, FL 33431 USA
Telephone: (561) 826-0061

Emergency Telephone
INFOTRAC (24 Hours)
USA & Canada: 1-800-535-5053
International: 1-352-323-3500

SECTION 2. HAZARD IDENTIFICATION

Hazard class	Category	Classification / Hazard Statement
Acute toxicity, oral	2	H300 Fatal if swallowed.
Acute toxicity, inhalation	2	H330 Fatal if inhaled.
Specific target organ toxicity  repeated exposure	2	H373 May cause damage to organs through prolonged or repeated exposure.
Pyrophoric solids	1	H250 Catches fire spontaneously if exposed to air.
Acute aquatic toxicity	2	H401 Toxic to aquatic life. (GHS supplemental environmental classification.)
Chronic aquatic toxicity	2	H411 Toxic to aquatic life with long lasting effects. (GHS supplemental environmental classification.)

Signal Word
DANGER

GHS pictograms

Hazards Not Otherwise Classified / Other Hazards: Radioactive material. Uranium is a nephrotoxic metal and may present both chemical toxicity and ionizing-radiation hazards. Fine uranium powder may present increased fire/reactivity and inhalation hazards compared with bulk metal.

Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P222 Do not allow contact with air.
P260 Do not breathe dust/fume.
P264 Wash hands and exposed skin thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P273 Avoid release to the environment.
P280 Wear protective gloves, protective clothing, and eye/face protection as appropriate.
P284 [In case of inadequate ventilation] wear respiratory protection.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER/doctor.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P370+P378 In case of fire: Use an extinguishing agent appropriate for the surrounding fire and the uranium fire; follow Se
P391 Collect spillage.
P403+P233 Store in a well-ventilated place. Keep container tightly closed, subject to applicable radioactive-material storage controls.

SECTION 3. COMPOSITION / INFORMATION ON INGREDIENTS

Component	CAS RN	Concentration	Notes
Uranium (U)	7440-61-1	100%	Elemental uranium; radioactive metal

SECTION 4. FIRST AID MEASURES
General Advice: In all routes of significant exposure, obtain prompt medical evaluation. Chemical injury and radiological concerns should both be considered. Notify the facility Radiation Safety Officer or other qualified radiation-protection authority as applicable.

Inhalation: Move the person to fresh air without exposing responders. If breathing is difficult, trained personnel may provide appropriate respiratory support. Obtain immediate medical attention.

Skin contact: Remove contaminated clothing. Wash skin thoroughly with soap and copious amounts of water. Control and retain contaminated materials for radiological evaluation/disposal.

Eye contact: Immediately flush cautiously with water for at least 20 minutes, holding eyelids open. Obtain medical attention.

Ingestion: Rinse mouth with water if the person is conscious. Do not induce vomiting unless directed by medical personnel. Obtain immediate medical attention and provide information on the material and radioactive nature.

Most Important Symptoms / Effects
Chemical toxicity may include kidney injury and irritation of the skin, eyes, and respiratory tract. Internal contamination may result in radiation dose; delayed effects can include tissue injury and increased cancer risk depending on dose.

Indication of Immediate Medical Attention / Special Treatment: Immediate professional medical assessment is recommended after significant exposure or suspected internal contamination. Treatment should be determined by qualified medical and radiation-safety professionals.

SECTION 5. FIREFIGHTING MEASURES
Suitable Extinguishing media
Use an extinguishing agent appropriate for the surrounding fire and the specific uranium fire, as determined by trained responders. For small uranium-metal fires, use a dry, Class D-type agent suitable for uranium/metal fires where available. Do not use carbon dioxide or water on an actively burning uranium-metal fire unless specifically authorized by trained emergency personnel because uranium can react with these materials under fire conditions.

Specific Hazards
Uranium powder can be pyrophoric and may ignite spontaneously on contact with air. Burning uranium may produce intense heat and toxic uranium-containing fumes/particulates. Water and other incompatible extinguishing media may react with hot or finely divided uranium.

Firefighter Precautions
Approach from upwind. Use positive-pressure SCBA and appropriate protective clothing. Establish radiological controls and prevent spread of contamination. Contact the facility Radiation Safety Officer and appropriate radiological emergency-response authority.

Combustion / Decomposition Products
Toxic metal oxides, uranium-containing particulate/fume, and other hazardous decomposition products may be generated.

SECTION 6. ACCIDENTAL RELEASE MEASURES
Personal Precautions: Isolate the area. Avoid generating or breathing dust. Do not touch spilled material unless trained and authorized. Keep unnecessary personnel away. Use appropriate respiratory and radiological protection.

Emergency Procedures: Notify the responsible Radiation Safety Officer/radiological-control authority. Evaluate airborne contamination, external radiation, and surface contamination before cleanup.

Methods for Containment and Cleanup: Prevent dispersion. Do not sweep or use compressed air in a manner that can aerosolize powder. Cleanup should be performed only by trained personnel using methods and equipment approved for radioactive contamination control. Place recovered material and contaminated PPE into appropriately controlled radioactive-waste containers.

Environmental Precautions: Prevent release to drains, soil, and surface water. Collect all recoverable material and contaminated cleanup media for controlled disposition.

SECTION 7. HANDLING AND STORAGE
Safe Handling: Handle only in controlled areas by trained and authorized personnel. Avoid creating airborne dust. Keep away from heat, sparks, flames, and air when the product is in a form capable of pyrophoric ignition. Avoid contact with water and incompatible materials. Use closed systems, gloveboxes, local exhaust, or other engineered containment appropriate to the operation.

Hygiene: Do not eat, drink, or smoke in handling areas. Wash hands thoroughly after handling and before leaving controlled areas.

Storage: Store tightly closed in a compatible, secure container under conditions that control both chemical and radiological hazards. Maintain appropriate inerting or liquid-cover controls where required by the product form and approved procedure. Segregate from water, oxidizing agents, acids, halogens, and other incompatible materials. Store in a designated radioactive-material area in accordance with applicable license and facility procedures.

SECTION 8. EXPOSURE CONTROLS / PERSONAL PROTECTION
Occupational Exposure Limits

Authority	Limit	Basis / note
OSHA PEL	0.25 mg/m³, 8-hour TWA	Uranium, metal and insoluble compounds, as U
NIOSH REL	0.2 mg/m³ TWA; 0.6 mg/m³ STEL	Uranium, insoluble compounds, as U
NIOSH IDLH	10 mg U/m³	Uranium, insoluble compounds

Radiological Exposure Limits
Occupational radiation exposure must also be controlled under the applicable NRC license, 10 CFR Part 20, DOE requirements where applicable, and state / local requirements.

Engineering Controls
Use local exhaust ventilation, process enclosure, glovebox, or other containment capable of preventing airborne uranium dust. Maintain appropriate radiological contamination controls and monitoring. Shielding requirements depend on isotope, activity, geometry, and radiation type.

Personal Protective Equipment
Respiratory Protection:
Use a NIOSH-approved respirator selected under a written respiratory-protection program when engineering controls are insufficient or during emergency response. Respirator selection must be based on measured/anticipated airborne concentration, contamination control requirements, and the applicable radiation-protection program.

Eye / Face Protection:
Chemical splash/impact-resistant eye protection appropriate to the operation; add face protection where splash or particle projection is possible.

Skin / Body Protection:
Protective gloves, laboratory/work clothing, and radiological protective clothing as required by the facility contamination-control program. Contaminated PPE must be controlled as radioactive material.

Other:
Radiation monitoring, contamination surveys, dosimetry, and respiratory-protection controls should be implemented according to the applicable license and written procedures.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Property	Information
Physical state	Solid powder
Appearance	Grayish-white to silvery, dense metal
Odor	No data available / not expected to be characteristic
Odor threshold	Not available
pH	Not applicable
Melting point/freezing point	Approximately 1132 °C (2070 °F)
Boiling point	Approximately 3818 °C (6904 °F)
Flammability	Pyrophoric in the product form described; may ignite on contact with air
Flash point	Not applicable to a solid metal
Vapor pressure	Approximately 0 mm Hg at ambient temperature
Relative density	Approximately 19.0–19.05
Solubility in water	Insoluble
Solubility in other solvents	Soluble/reactive in certain acids; product-specific data not established for all solvents
Partition coefficient	Not applicable / no data available
Auto-ignition temperature	Not established in the supplied product data
Decomposition temperature	Not available
Particle characteristics	Powder; particle-size distribution not specified

SECTION 10. STABILITY AND REACTIVITY
Reactivity: Finely divided uranium can react vigorously with air and may be pyrophoric. Reactivity increases with increased surface area and may be affected by moisture and particle characteristics.

Chemical Stability: Stable under recommended controlled storage conditions. Finely divided uranium may oxidize readily in air.

Possibility of Hazardous Reactions: May react violently with water, halogens, acids, oxidizing agents, and other incompatible materials. Hydrogen may be generated during reactions with acids or water under certain conditions.

Conditions to Avoid: Exposure to air, moisture/water, heat, ignition sources, friction/impact that can disperse powder, and incompatible materials.

Incompatible Materials: Chlorine, fluorine, bromine/halogens, nitric acid and other strong acids/oxidizing agents, water/moisture, sulfur, selenium, ammonia under certain conditions, carbon dioxide at elevated temperature, carbon tetrachloride, and other materials identified in validated compatibility procedures.

Hazardous decomposition products: Uranium oxides, toxic metal-containing fumes/particulates, and hydrogen from certain reactions.

11. Toxicological Information

Likely Routes of Exposure

Inhalation of dust; ingestion; eye contact; skin contact. Internal contamination is a significant radiological concern.

Acute Toxicity
Category 2 by oral and inhalation routes. Uranium is a known nephrotoxic metal; significant exposure can cause kidney injury.
Skin Corrosion / Irritation: May irritate skin. No specific product-specific corrosion data were provided.
Serious Eye Damage / Eye Irritation: Dust/particulate may irritate and can cause significant eye injury.
Respiratory or Skin Sensitization: No data available.
Germ Cell Mutagenicity: No product-specific classification data available. Ionizing radiation from radioactive uranium can damage genetic material at sufficient dose.
Carcinogenicity: Ionizing radiation is a recognized carcinogenic hazard. Radiological risk depends on radionuclide, activity, exposure pathway, and dose.

Specific Target Organ Toxicity / Single Exposure
No additional product-specific classification data available beyond the acute toxicity hazards described above.

Specific Target Organ Toxicity / Repeated Exposure: Kidney is a principal target organ for chemical uranium toxicity. Other potential effects depend on route, dose, and radiological exposure.

Aspiration Hazard: Not applicable to a solid powder.

Numerical Measures of Toxicity: Product-specific LD50/LC50 values were not provided in the supplied SDS.

SECTION 12. ECOLOGICAL INFORMATION
Ecotoxicity: Avoid uncontrolled release. Uranium compounds can persist in environmental media and may present chemical and radiological concerns.
Persistence / Degradability: Not available.
Bioaccumulative Potential: Not available.
Mobility in Soil: Not available.
Other Adverse Effects: Radioactive properties and chemical toxicity may be relevant to environmental assessment.

SECTION 13. DISPOSAL CONSIDERATIONS
Disposal Instructions: Uranium and materials contaminated with uranium must be managed as radioactive material/radioactive waste as applicable and disposed of in accordance with the applicable NRC license, state requirements, DOE requirements where applicable, and Federal, state, and local environmental regulations.
Do not discharge to drains, surface water, or soil. Do not dispose of in ordinary trash. Waste classification and disposition must be determined by the responsible radiation-safety and waste-management personnel.

Contaminated Packaging: Manage as radioactive-contaminated material unless released from radiological controls by an authorized process.

SECTION 14. TRANSPORT INFORMATION
U.S. DOT / 49 CFR
Transport classification shall be determined according to radionuclide activity, pyrophoric properties, fissile status (if applicable), package design, transport index, and exclusive-use requirements (if applicable).
The appropriate UN number and hazard class shall be assigned based on the complete hazard profile and regulatory requirements.
The shipper is responsible for correct classification, packaging, marking, labeling, shipping papers, and carrier requirements under 49 CFR Parts 171–180 and applicable modal rules.

IATA/ICAO/IMDG
Classification and packaging must be determined for the actual shipment under the applicable current modal regulations.

SECTION 15. REGULATORY INFORMATION
U.S. Federal
OSHA Hazard Communication Standard, 29 CFR 1910.1200.
OSHA occupational exposure limits, 29 CFR 1910.1000 and applicable substance-specific requirements.
NRC requirements for radioactive material, including 10 CFR Part 20, as applicable to the licensee and material.
DOT Hazardous Materials Regulations, 49 CFR Parts 171–180.
TSCA Uranium is a naturally occurring element; applicability depends on the specific regulatory activity and use.
State and local requirements: Additional radioactive-material, hazardous-waste, worker-protection, and environmental requirements may apply.
California Proposition 65 Users should verify current California Proposition 65 requirements.

SECTION 16. OTHER INFORMATION
Copyright © 2015 International Bio-Analytical Industries, Inc.
Permission is granted to make unlimited paper copies for internal use only.
International Bio-Analytical Industries, Inc. requires recipients of its materials to comply with 29 CFR 1910.1200(h), which mandates that employers provide employees with effective information and training on hazardous chemicals present in the workplace.
The information contained in this Safety Data Sheet is believed to be accurate as of the date of revision and is provided in good faith. However, this information is intended to serve as a guide only, and recipients are encouraged to exercise independent judgment regarding its accuracy, completeness, and suitability for their specific applications. International Bio-Analytical Industries, Inc., shall not be held liable for any direct or indirect damage resulting from the use of this information.
International Bio-Analytical Industries, Inc. makes no warranties, express or implied, including, but not limited to, warranties of merchantability or fitness for a particular purpose. This information is provided without warranty, and any use of the product that does not conform to this Safety Data Sheet, or that is used in combination with any other product or process, is the sole responsibility of the user.
Revision Date: 08/12/2026