1. PRODUCT IDENTIFICATION

Name: Thorium Acetylacetonate

Synonyms: 4-pentanedionato-o,o’)-tetrakis((sa-8-11’’11’’1’1’’’1’1’’’)-thoriu; Tetrakis(2,4-pentanedionato)thorium; Tetrakis(3,4-pentanedionato)thorium

Formula: Th(CH₃COCHCOCH₃)₄

CAS RN: [17499-48-8]

Chemical Family: Metal beta-diketone complexes.

Beilstein/Gmelin: 196552 (G)

NIH PubChem CID: 24181091

EC (EINECS/ELINCS): 241-506-3

Canada DSL/NDSL: NDSL

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IBI Labs

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Tel: 561-826-0061 Fax: 561-892-8450

Emergency Telephone Numbers

INFOTRAC

USA & Canada contact number: 1-800-535-5053

International contact number: 1-352-323-3500

2. COMPOSITION AND INFORMATION ON INGREDIENTS, PHYSICAL AND CHEMICAL PROPERTIES

• Molecular Formula: C20H28O8Th
• Percent: 100
• Molecular weight: 628.475
• Melting Point, °C: 168°C-169°C
• Vapor Pressure, mm_Hg: 2.9 – 3.5 (100°C)
• Density: 1.72-1.77 g/cm3
• Solubility: Slightly soluble in water
• ACGIH (TWA): 0.2mg/m3 (as U)
• OSHA (PEL): 0.25mg/m3 (as insoluble U)

3. HAZARDS IDENTIFICATION

• Toxic by inhalation and if swallowed.
• May irritate the skin, eyes, and respiratory tract.
• May cause cancer.

Primary routes of exposure: Ingestion and inhalation.

Skin and eye contact: Causes slight to mild irritation of the skin and eyes.

Inhalation:

• Toxic by inhalation.
• Irritating to the nose, mucous membranes, and respiratory tract.

Ingestion: Toxic if swallowed.

Acute Health Effects

• Toxic by inhalation and if swallowed.
• Irritating to skin, eyes, and respiratory tract.

Chronic Health Effects

• Prolonged exposure to dust at above regulatory levels may increase the likelihood of radiation-induced diseases because of alpha emission and radon gas.
• May increase the risk of cancer of the skin and lymphatic system.

4. FIRST AID MEASURES

Eye exposure:

• Immediately flush the eyes with copious amounts of water for at least 20 minutes.
• A patient may need assistance in keeping their eyelids open.
• Get immediate medical attention.
• See ingestion.

Skin exposure:

• Wash the affected area with water.
• Immediately flush with running water for at least 20 minutes.
• Remove contaminated clothes if necessary.
• Seek medical assistance if irritation persists.
• See Ingestion.

Inhalation:

• Remove the patient to fresh air.
• Closely monitor the patient for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain.
• Apply artificial respiration if the patient is not breathing.
• Administer oxygen if breathing is difficult.
• Seek immediate medical assistance.
• See Ingestion.

Ingestion:

• Medical problems take priority over radiological concerns.
• Use first aid treatment according to the nature of the injury.
• Do not delay the care and transport of a seriously injured person.
• Give the patient water (only if conscious).
• Induce vomiting (only if directed by medical personnel).

5. FIREFIGHTING

The presence of radioactive material will not influence the fire control processes and the selection of techniques.

• Small fires: Dry chemical, carbon dioxide, water spray, or regular foam.
• Large fires: Water spray, fog (flooding amounts).

Fire protection: May burn, but it does not ignite rapidly.

6. HANDLING AND STORAGE

Storage:

• Keep in a cool, dry, dark location, in a tightly sealed container or cylinder.
• Keep away from incompatible materials, ignition sources, and untrained individuals.
• Secure and label area.
• Protect containers/cylinders from physical damage.

Handling:

• All chemicals should be considered hazardous.
• Avoid direct physical contact.
• Use appropriate approved safety equipment.
• Untrained individuals should not handle this chemical or its container.
• Handling should occur in a chemical fume hood.

Protection: Wear appropriate protective gloves, clothing, and goggles.

Respirators: If ventilation is not available a respirator should be worn. The use requires a Respirator Protection Program to follow 29 CFR 1910.134. Wear positive pressure self-contained breathing apparatus (SCBA).

Ventilation: Material may form a fine dust. If possible, handle the material in an efficient fume hood.

Small spills and leaks: Minimal risk if packaging remains intact. Package damage can result in a measurable release of radiation, but the risk is still low.

• Do not touch damaged packages or spilled material.
• Cover liquid spill with sand, earth, or other noncombustible absorbent material.
• Cover the powder spill with a plastic sheet or tarp to minimize spreading.
• Contact the radiation safety officer.

7. EXPOSURE CONTROLS

At any detectable concentration:  Any self-contained breathing apparatus with a full facepiece operated in a pressure-demand or other positive-pressure mode.

Any supplied-air respirator with a full facepiece operated in a pressure-demand or other positive-pressure mode or other positive-pressure mode with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode.

Escape – any air-purifying, full-facepiece respirator with a high-efficiency particulate filler.

Any appropriate escape-type, self-contained breathing apparatus.

Firefighting and Other Immediately Dangerous to Life or Health Conditions

Use any self-contained breathing apparatus with a full facepiece respirator and a high-efficiency particulate filter.

Use any supplied air respirator with a full facepiece operated in a pressure-demand or other positive-pressure mode or other positive-pressure modes with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure modes.

8. STABILITY AND REACTIVITY

Stability: Air and moisture stable.

Hazardous polymerization: No hazardous polymerization.

Conditions to avoid: None.

Incompatibility: Strong oxidizing agents.

Decomposition products: Carbon dioxide, carbon monoxide, organic vapors, metal oxides, and carbonates.

9. TOXICOLOGICAL AND ECOLOGICAL EFFECTS

RTECS data: No information is available in the RTECS files.

Carcinogenic effects: Carcinogen (as U).

Mutagenic effects: No data available.

Tetratogenic Effects: No data available.

Ecological Information: No data available.

10. DISPOSAL CONSIDERATIONS

Waste from residues/unused products: Waste disposal must follow appropriate Federal, State, and local regulations. If unaltered, this product may be disposed of by treatment at a permitted facility or as advised by your local hazardous waste regulatory authority. Residue from fires extinguished with this material may be dangerous.

Contaminated packaging: Do not reuse empty containers and dispose of them as unused products.

11. TRANSPORTATION

UN Number: 2910

Response Guide: 161

Hazard Class: 7

USCG CHRIS Code: RAD

Packing Group:

The classification of substances with multiple hazards must be determined following the criteria presented in the regulations mentioned above. Due to the various quantities and combinations of materials being shipped at one time, the information above must be determined based on the characteristics of the specific shipment.

12. OTHER INFORMATION

IBI Labs requires that those who receive their materials comply with 29 CFR 1910.1200(h), which mandates that employers provide employees with effective information and training about hazardous chemicals in their workplace.

The contents of this document are believed to be accurate as of the date of revision and are provided in good faith. However, it is recommended that recipients use this information as supplementary and exercise caution and judgment regarding its accuracy and suitability. Please note that IBI Labs cannot be held responsible for any damage, direct or indirect, that occurs because of using the information provided in this Safety Data Sheet.

IBI Labs makes no warranties, expressed or implied, including warranties of merchantability and 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 user’s responsibility.

Revision Date: 06/26/2024