1. Identification

Product Name: Uranium Oxide
Synonyms: Triuranium octoxide; U₃O₈; Uranium (V,VI) oxide
CAS Number: 1344-59-8
Chemical Formula: U₃O₈
Recommended Use: Laboratory use, research, nuclear fuel cycle applications
Restrictions on Use: For use only by trained personnel in licensed facilities

Supplier:
IBI Labs
3495 N. Dixie Hwy., Unit 8
Boca Raton, FL 33431
Tel: 561-826-0061

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

2. Hazard(s) Identification

Classification (GHS)

• Acute Toxicity (Inhalation, Dust) – Category 3
• Acute Toxicity (Oral) – Category 4
• Specific Target Organ Toxicity – Repeated Exposure (Kidneys) – Category 2
• Carcinogenicity – Category 1A
• Reproductive Toxicity – Category 2
• Hazardous to the Aquatic Environment (Chronic) – Category 3

Additional Hazard: Radioactive material (alpha emitter; internal hazard)

Label Elements
Signal Word: Danger
Pictograms:

Hazard Statements

• H331: Toxic if inhaled.
• H302: Harmful if swallowed.
• H351: Suspected of causing cancer.
• H361: Suspected of damaging fertility or the unborn child.
• H373: May cause damage to kidneys through prolonged or repeated exposure.
• H412: Harmful to aquatic life with long lasting effects.

Precautionary Statements
Prevention

• Obtain special instructions before use.
• Do not handle until all safety precautions have been read and understood.
• Avoid breathing dust.
• Use only in licensed radiological facilities.
• Wear protective gloves, protective clothing, and approved respiratory protection.
• Do not eat, drink, or smoke when using this product.

Response

• IF INHALED: Remove person to fresh air and keep comfortable for breathing. Get immediate medical attention.
• IF SWALLOWED: Rinse mouth. Call a physician.
• IF exposed or concerned: Get medical advice.

Storage

• Store locked up in designated radioactive materials area.

Disposal

• Dispose of contents/container in accordance with federal, state, and NRC regulations.

3. Composition / Information on Ingredients

Component	CAS Number	Concentration
Uranium Oxide (U₃O₈)	1344-59-8	≥ 99%

Impurities: May contain trace uranium isotopes (U-234, U-235, U-238).

4. First-Aid Measures

General: Seek immediate medical attention for all exposures. Inform medical personnel of radioactive contamination.

Inhalation

• Move to fresh air immediately.
• Provide oxygen if breathing is difficult.
• Avoid mouth-to-mouth resuscitation.
• Obtain medical attention and radiological evaluation.

Skin Contact

• Remove contaminated clothing.
• Wash with soap and water.
• Monitor for radioactive contamination.
• Decontaminate per radiation safety procedures.

Eye Contact

• Rinse cautiously with water for at least 15 minutes.
• Remove contact lenses if present.
• Seek medical attention.

Ingestion

• Rinse mouth.
• Do NOT induce vomiting unless directed by medical personnel.
• Seek immediate medical attention.

Most Important Symptoms
Kidney damage, respiratory irritation, nausea, vomiting, weakness. Chronic exposure may increase cancer risk.

5. Fire-Fighting Measures

Suitable Extinguishing Media: Use media appropriate for surrounding fire.

Specific Hazards:
Non-combustible solid. Fire may disperse radioactive dust.

Protective Equipment:
Self-contained breathing apparatus (SCBA) and full protective gear.
Notify radiological response authorities.

6. Accidental Release Measures

• Evacuate area.
• Avoid dust formation.
• Wear appropriate respiratory and radiation protection.
• Do not dry sweep.
• Collect material using HEPA-filtered vacuum.
• Dispose as radioactive waste.
• Notify radiation safety officer.

7. Handling and Storage

Handling

• Use only in authorized radiological areas.
• Avoid dust generation.
• Use local exhaust ventilation or containment (glove box).
• Follow NRC and OSHA radiation standards.

Storage

• Store in labeled, sealed containers.
• Secure in designated radioactive materials storage.
• Keep away from incompatible materials.

8. Exposure Controls / Personal Protection

Occupational Exposure Limits (as Uranium)

• OSHA PEL: 0.05 mg/m³ (TWA)
• ACGIH TLV: 0.2 mg/m³ (TWA), 0.6 mg/m³ (STEL)
• NRC Radiation Dose Limits: 10 CFR Part 20 applies

Engineering Controls

• Local exhaust ventilation
• HEPA filtration
• Radiological containment systems

Personal Protective Equipment
Respiratory:
NIOSH-approved respirator for radioactive particulates. SCBA in high exposure scenarios.

Gloves:
Chemical-resistant gloves.

Eye Protection:
Safety goggles or face shield.

Protective Clothing:
Disposable coveralls; dosimetry badges as required.

9. Physical and Chemical Properties

Appearance: Dark green to black powder
Odor: Odorless
Melting Point: ~1150°C
Boiling Point: Decomposes
Flash Point: Not applicable
Flammability: Non-flammable
Solubility: Insoluble in water
Specific Gravity: ~8.3

10. Stability and Reactivity

Stable under normal conditions.
Incompatible with strong fluorinating agents (e.g., bromine trifluoride).
Thermal decomposition may produce uranium oxides and toxic fumes.

11. Toxicological Information

Likely Routes of Exposure: Inhalation, ingestion, skin/eye contact

Target Organ: Kidneys

Acute Effects: Respiratory irritation, nausea, vomiting, kidney damage.

Chronic Effects: Nephrotoxicity, lung effects, increased cancer risk from internal radiation exposure.

Carcinogenicity:

IARC: Group 1 (Carcinogenic to humans – ionizing radiation associated with uranium)

NTP: Listed (as radioactive substances)

OSHA: Regulated as ionizing radiation

12. Ecological Information

Radioactive heavy metal.
Harmful to aquatic organisms.
Persistent in environment.

13. Disposal Considerations

Dispose of as radioactive waste in accordance with:

• NRC (10 CFR Part 20)
• DOE regulations (10 CFR 835)
• EPA hazardous waste regulations

Do not release to environment.

14. Transport Information

Transportation is regulated under 49 CFR (DOT) as radioactive material.
Classification depends on activity, enrichment, and quantity.
Proper Shipping Name:
Hazard Class:
UN/ID Number:                                          To be determined on a case-by-case basis.
Special Information:
Packing Group:

15. Regulatory Information

• OSHA Hazard Communication Standard: 29 CFR 1910.1200
• OSHA Ionizing Radiation: 29 CFR 1910.96
• NRC: 10 CFR Part 20
• TSCA: Listed
• SARA 311/312: Acute and Chronic Hazard
• IARC: Group 1 (ionizing radiation)

16. Other Information

This product is both chemically toxic and radioactive.
Primary health hazard is kidney toxicity and internal radiation exposure.
Use only in licensed facilities under radiation safety program.

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 that recipients of its materials comply with 29 CFR 1910.1200(h), which mandates that employers provide employees with effective information and training regarding 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: 02/12/2026