Uranium Oxide

EFFECTS OF OVEREXPOSURE — Short Term (Acute): High internal doses can produce kidney damage. Minimal external radiation hazard. Emits mainly alpha radiation, which will not penetrate the skin or a piece of paper. Long Term (Chronic): Ingestion (swallowing) uranium compounds may cause kidney damage and blood changes. Little, if any, uranium oxide would be expected to dissolve if swallowed. Inhalation of uranium octaoxide dust over a long period of time may cause lung injury or lung cancer due to internal radiation exposure. Repeated or prolonged skin contact may cause dermatitis or radiation damage to skin.

Identification
URANIUM OXIDE
CHEMICAL FAMILY — Inorganic oxide
MOLECULAR WEIGHT — 842
CHEMICAL NAME — Uranium octaoxide, Yellow Cake
MELTING POINT — Decomposes 2372 Degrees F
SPECIFIC GRAVITY (H2O =1) — 8.3
SOLUBILITY IN WATER — Insoluble
APPEARANCE AND ODOR — Dark brown to black odorless solid

Uranium oxide is a non-flammable inorganic oxide. Uranium compounds should be classed as occupational carcinogens.

ROUTES OF ENTRY — Lungs (breathing), skin or eye contact, ingestion (swallowing).

STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED — Use
respiratory protection and protective clothing (See Special Protection). If uncontaminated,
vacuum or collect, and reuse as product. If contaminated with other materials, collect in
suitable containers. Do not allow dust to become airborne.

RESPIRATORY PROTECTION — If dust concentrations exceed recommended Permissible Exposure Limits, use NIOSH-approved dust respirators, with approval TC-21C-xxx, approved for radon daughters or radionuclides, until feasible engineering controls are completed.

ADDITIONAL PROTECTION — If visible dust is present, use full-face respirator with high-efficiency particulate filter, and protective clothing to prevent dust contact with skin or personal clothing.

The Reportable Quantity for any radioactive material under Superfund is one pound. Cases of ingestion or inhalation of this product should be investigated by one or more of the following methods (with medical supervision):

1. An in vivo (whole body) radioactivity count as soon as possible.
2. Fecal collection for 24 to 48 hours, followed by total uranium determination.
3. Urine sample collection between 48 and 96 hours, followed by uranium analysis. An
additional urine specimen should be checked for albuminuria.

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