Thorium(IV) nitrate hydrate (99.8%-Th)

CAS#13470-07-0; 13823-29-5
(anhydrous)
Manufacturer
Commercial Name(s)
Synonym
Thorium nitrate

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Section 3. Hazards Identification
Potential Acute Health Effects Hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, of inhalation. Prolonged
exposure may result in skin burns and ulcerations. Over-exposure by inhalation may cause respiratory irritation.
Potential Chronic HealthCARCINOGENIC EFFECTS: Not available.
EffectsMUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS: Not available.
DEVELOPMENTAL TOXICITY: Not available.
The substance may be toxic to kidneys, lungs, bone marrow.
Repeated or prolonged exposure to the substance can produce target organs damage.

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Section 4. First Aid Measures
Eye ContactCheck for and remove any contact lenses. Flush with plenty of water for at least 15 minutes, occasionally lifting
the upper and lower eyelids. Cold water may be used. Get medical attention. Seek medical attention in case of
eye contact with a radioactive material.
Skin ContactIn case of contact, immediately flush skin with plenty of water. Cover the irritated skin with an emollient. Remove
contaminated clothing and shoes. Cold water may be used.Wash clothing before reuse. Thoroughly clean shoes
before reuse. Get medical attention.
Serious Skin ContactWash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek medical
attention in case of skin contact with a radioactive material.
InhalationIf inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get
medical attention.
Serious InhalationEvacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or
waistband. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth
resuscitation. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth
resuscitation. Seek medical attention in case of inhalation of a radioactive material.
IngestionDo NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an
unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight
clothing such as a collar, tie, belt or waistband.
Serious IngestionNot available.

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Section 5. Fire and Explosion Data
Flammability of the Product Non-flammable.
Auto-Ignition Temperature Not applicable.
Flash PointsNot applicable.
Flammable LimitsNot applicable.
Not available.
Products of Combustion
Fire Hazards in Presence of organic materials. combustible materials.
Various Substances
Explosion Hazards in Presence Risks of explosion of the product in presence of mechanical impact: Not available.
of Various SubstancesRisks of explosion of the product in presence of static discharge: Not available.
Slightly explosive in presence of combustible materials, of organic materials.
Fire Fighting MediaOXIDIZING MATERIAL. Use DRY chemicals, CO2, water spray or foam.
and Instructions
Special Remarks onOxidizing agent; may ignite oxidizable materials. Contact with combustible or organic materials may cause fire. It
Fire Hazardsincreases the flammability of any combustible substance.
Special Remarks on Explosion In contact with easily oxidizable substances, it may react rapidly enough to cause violent combustion or explosion.
Hazards
Thorium nitrate

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Section 6. Accidental Release Measures
Small SpillUse appropriate tools to put the spilled solid in a convenient waste disposal container.
Large Spill
Radioactive material. Oxidizing material.
Stop leak if without risk. Do not attempt recovery actions unless for rescue purposes. Do not touch damaged
container or spilled material. Do not clean-up or dispose except under supervision of a specialist. Avoid contact
with a combustible material (wood, paper, oil, clothing...). Keep substance damp using water spray. Do not touch
disposal.

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Section 7. Handling and Storage
PrecautionsKeep away from heat. Keep away from sources of ignition. Keep away from combustible material.. Do not
ingest. Do not breathe dust. Wear suitable protective clothing. In case of insufficient ventilation, wear suitable
respiratory equipment. If ingested, seek medical advice immediately and show the container or the label. Avoid
contact with skin and eyes. Keep away from incompatibles such as combustible materials, organic materials.
StorageKeep container tightly closed. Keep container in a cool, well-ventilated area. Separate from acids, alkalies,
reducing agents and combustibles. See NFPA 43A, Code for the Storage of Liquid and Solid Oxidizers.

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Section 8. Exposure Controls/Personal Protection
Engineering ControlsUse process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
airborne contaminants below the exposure limit.
Personal ProtectionSplash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.
Gloves. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product.
Personal Protection in Case of Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used
a Large Spillto avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist
BEFORE handling this product.
Exposure LimitsNot available.

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Section 9. Physical and Chemical Properties
Physical state and appearance Solid. (Deliquescent solid.)OdorOdorless.
TasteNot available.
552.12 g/mole
Molecular Weight
ColorWhite.
pH (1% soln/water)Not available.
Not available.
Boiling Point
Melting PointDecomposition temperature: 500°C (932°F)
Not available.
Critical Temperature
Specific GravityNot available.
Vapor PressureNot applicable.
Vapor DensityNot available.
VolatilityNot available.
Odor ThresholdNot available.
Water/Oil Dist. Coeff.Not available.
Not available.
Ionicity (in Water)
Dispersion PropertiesSee solubility in water.
SolubilityEasily soluble in cold water.
Very soluble in alcohol (ethanol), acids.
Thorium nitrate

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Section 10. Stability and Reactivity Data
The product is stable.
Stability
Instability TemperatureNot available.
Incompatible materials
Conditions of Instability
Highly reactive with combustible materials, organic materials.
Incompatibility with various
Reactive with reducing agents, acids.
substances
CorrosivityNon-corrosive in presence of glass.
Special Remarks onAlso incompatible with finely powdered metals.
Reactivity
Special Remarks onNot available.
Corrosivity
PolymerizationWill not occur.

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Section 11. Toxicological Information
Routes of EntryInhalation. Ingestion.
Toxicity to AnimalsFor Thorium Nitrate Anhydrous, (CAS number 13823-29-5):
Acute oral toxicity (LD50): 1760 mg/kg [Mouse].
Chronic Effects on Humans May cause damage to the following organs: kidneys, lungs, bone marrow.
Other Toxic Effects onHazardous in case of skin contact (irritant), of ingestion, of inhalation.
Humans
Special Remarks onNot available.
Toxicity to Animals
Special Remarks onMay cause adverse reproductive effects. Thorium reproductive effects, if they occur, are likely to be mediated by
Chronic Effects on Humansionizing radiation.
Thorium is a suspected carcinogen. Thorium Nitrate emits radiation which could cause cancer, but no evidence
of cancer has yet been found.
May affect genetic material (mutagenic)
Special Remarks on otherAcute Potential Health Effects:
Toxic Effects on HumansSkin: Causes skin irritation with a rash, or burning feeling on contact.
Eyes: Causes eye irritation.
Inhalation: It can irritate the respiratory tract (nose, throat).
Ingestion: May be harmful if swallowed. It may cause nausea, vomiting, dizziness, abdominal cramps, ulceration
or bleeding from the small intestine, bloody diarrhea, weakness, convulsions, general depression, headache,
mental impairment.
Chronic Potential Health Effects:
Skin: May cause dermatitis.
Ingestion and Inhalation: Repeated or prolonged exposure may affect the liver, kidneys, lungs, bone marrow. It
may reduce the ability of the bone marrow to make blood cells. Prolonged or repeated inhalation may cause
scarring of the lungs.
Note: Thorium can accumulate in the bones, lungs and lymph system. Thorium that is absorbed into the body
can remain for long periods of time and increase the risk of radiation induced cancer in tissues where it is
retained.
Thorium nitrate

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Section 12. Ecological Information
EcotoxicityNot available.
BOD5 and CODNot available.
Products of BiodegradationPossibly hazardous short term degradation products are not likely. However, long term degradation products may
arise.
The products of degradation are less toxic than the product itself.
Toxicity of the Products
of Biodegradation
Special Remarks on theNot available.
Products of Biodegradation

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Section 13. Disposal Considerations
Waste DisposalWaste must be disposed of in accordance with federal, state and local environmental
control regulations.

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Section 14. Transport Information
DOT ClassificationCLASS 5.1: Oxidizing material.
UNNA: 1477 : Nitrate, inorganic, n.o.s (Thorium Nitrate) PG: III
Identification
Not available.
Special Provisions for
Transport
DOT (Pictograms)
OXIDIZER
5.1

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Section 15. Other Regulatory Information and Pictograms
California prop. 65: This product contains the following ingredients for which the State of California has found to
Federal and State
cause cancer, birth defects or other reproductive harm, which would require a warning under the statute: Thorium
Regulations
nitrate (listed as Radionuclides)
California prop. 65: This product contains the following ingredients for which the State of California has found to
cause cancer which would require a warning under the statute: Thorium nitrate (Listed as Radionuclides)
Connecticut hazardous material survey.: Thorium nitrate (CAS no. 13823-29-5)
Rhode Island RTK hazardous substances: Thorium nitrate (CAS no. 13823-29-5)
Pennsylvania RTK: Thorium nitrate (CAS no. 13823-29-5)
Massachusetts RTK: Thorium nitrate (CAS no. 13823-29-5)
New Jersey: Thorium nitrate (CAS no. 13823-29-5)
CAS no. 13470-07-0 is not TCSA listed because it is a hydrate. CAS no. 13823-29-5 is TSCA listed.
CaliforniaCalifornia prop. 65: This product contains the following ingredients for which the State of California has found
Proposition 65to cause cancer which would require a warning under the statute: Thorium nitrate (listed as Radionuclides)
Warnings
California prop. 65: This product contains the following ingredients for which the State of California has found
to cause birth defects which would require a warning under the statute: No products were found.
Other RegulationsOSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).
For CAS number 13470-07-0:
EINECS: This product is not on the European Inventory of Existing Commercial Chemical Substances.
Canada: Not listed on Canadian Domestic Substance List (DSL) or Canadian Non- Domestic Substance List
(NDSL).
China: Not listed on National Inventory.
Japan: Not listed on National Inventory (ENCS).
Korea: Not listed on National Inventory (KECI).
Philippines: Not listed on National Inventory (PICCS).
Australia: Not listed on AICS.
Thorium nitrate
For CAS number 13823-29-5:
EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances. (EINECS No.
237-514-1).
Canada: Listed on Canadian Domestic Substance List (DSL).
China: Listed on National Inventory.
Japan: Not listed on National Inventory (ENCS).
Korea: Listed on National Inventory (KECI).
Philippines: Listed on National Inventory (PICCS).
Australia: Listed on AICS.
CLASS C: Oxidizing material.
Other ClassificationsWHMIS (Canada)
CLASS D-2A: Material causing other toxic effects (VERY TOXIC).
DSCL (EEC)R8- Contact with combustible materialS17- Keep away from combustible material.
may cause fire.S36/37- Wear suitable protective clothing and
R36/38- Irritating to eyes and skin.gloves.
R45- May cause cancer.S46- If swallowed, seek medical advice
immediately and show this container or label.
Health Hazard
HMIS (U.S.A.)2 National Fire Protection
0 Flammability
0 Association (U.S.A.)
Fire Hazard
2 0 Reactivity
Health
Reactivity
0
Specific hazard
Personal Protection
x
WHMIS (Canada)
(Pictograms)
DSCL (Europe)
(Pictograms)
TDG (Canada)
(Pictograms)
5.1
ADR (Europe)
(Pictograms)
Protective Equipment
Gloves.
Lab coat.
Dust respirator. Be sure to use an
approved/certified respirator or
equivalent. Wear appropriate respirator
when ventilation is inadequate.
Splash goggles.

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SECTION 16 - ADDITIONAL INFORMATION
N/A