Thorium Nitrate

Safety Data Sheet

Revision Date 07/25/2022


Product identifiers

Product Name: Thorium Nitrate Tetrahydrate

Product Number: T12215-ACS

Brand: IBI Labs

CAS-No.: 13470-07-0

Identified Uses: Laboratory chemicals, Manufacture of substances.


IBI Labs

3495 N. Dixie Hwy. Unit # 8

Boca Raton, FL 33431

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

Emergency Telephone Numbers


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

International contact number: 1-352-323-3500


Classification of the substance or mixture

GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)

Oxidizing solids (Category 2), H272

Acute toxicity, Oral (Category 4), H302

Skin irritation (Category 2), H315

Eye irritation (Category 2A), H319

Specific target organ toxicity – single exposure (Category 3), Respiratory system, H335

Specific target organ toxicity – repeated exposure (Category 2), H373

Acute aquatic toxicity (Category 2), H401

Chronic aquatic toxicity (Category 2), H411

For the full text of the H-Statements mentioned in this Section, see Section 16.

GHS Label elements, including precautionary statements



Signal word Danger.

Hazard statement(s)

H272 May intensify fire, oxidizer.

H302 Harmful if swallowed.

H315 Causes skin irritation.

H319 Causes serious eye irritation.

H335 May cause respiratory irritation.

H373 May cause damage to organs through prolonged or repeated exposure.

H411 Toxic to aquatic life with long lasting effects.

Precautionary statement(s)

P210 Keep away from heat.

P220 Keep/Store away from clothing/combustible materials.

P221 Take any precaution to avoid mixing with combustibles.

P260 Do not breathe dust/fume/gas/mist/vapors/spray.

P264 Wash skin thoroughly after handling.

P270 Do not eat, drink, or smoke when using this product.

P271 Use only outdoors, or in a well-ventilated area.

P273 Avoid release to the environment.

P280 Wear protective gloves/protective clothing/eye protection/face protection.

P301 + P312 IF SWALLOWED: Call a POISON CENTER or doctor/ physician if you feel unwell.

P302 + P352 IF ON SKIN: Wash with plenty of soap and water.

P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.

P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

P314 Get medical advice/attention if you feel unwell.

P321 Specific treatment (see supplemental first aid instructions on this label).

P330 Rinse mouth.

P332 + P313 If skin irritation occurs: Get medical advice/attention.

P337 + P313 If eye irritation persists: Get medical advice/attention.

P362 Take off contaminated clothing and wash before reuse.

P370 + P378 In case of fire: Use dry sand, dry chemical, or alcohol-resistant foam for extinction.

P391 Collect spillage.

P403 + P233 Store in a well-ventilated place. Keep container tightly closed.

P405 Store locked up.

P501 Dispose of contents/container to an approved waste disposal plant.

2.3 Hazards not otherwise classified (HNOC) or not covered by GHS




Formula: Th(NO3)4*4H2O

Molecular Weight: 552.12g/mol.

CAS-No.: 13470-07-0.

EC-No.: 237-514-1

Component Classification Concentration

Thorium Nitrate Tetrahydrate

Ox. Sol. 2; Acute Tox. 4; Skin.

Irrit. 2; Eye Irrit. 2A; STOT SE.

3; STOT RE 2; Aquatic Acute.

2; Aquatic Chronic 2; H272, H302, H315, H319, H335, H373, H411.

For the full text of the H-Statements mentioned in this Section, see Section 16.


Description of first aid measures

General Advice: Consult a physician, show this safety data sheet to the doctor in attendance, and move out of dangerous area.

If Inhaled: 

  • If breathed in, move person into fresh air.
  • If not breathing, give artificial respiration.
  • Consult a physician.

In case of skin contact: 

  • Wash off with soap and plenty of water.
  • Consult a physician.

In Case of Eye Contact: Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.

If Swallowed: Never give anything by mouth to an unconscious person, rinse mouth with water, and consult a physician.

Most important symptoms and effects, both acute and delayed: The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11.

Indication of any immediate medical attention and special treatment needed: No Data Available.


Suitable extinguishing media: Use extinguishing measures that are appropriate to local circumstances, and the surrounding environment.

Special hazards arising from the substance or mixture: Nitrogen oxides (NOx), Metal oxides.

Advice for firefighters: If necessary, wear self-contained breathing apparatus for firefighting.

Further information: Use water spray to cool unopened containers. The product itself does not burn.


Personal precautions, protective equipment, and emergency procedures:

  • Use personal protective equipment.
  • Avoid dust formation.
  • Avoid breathing vapors, mist, or gas.
  • Ensure adequate ventilation.
  • Evacuate personnel to safe areas.
  • Avoid breathing dust.
  • For personal protection see section 8.

Environmental precautions:

  • Prevent further leakage or spillage if safe to do so.
  • Do not let product enter drains.
  • Discharge into the environment must be avoided.

Methods and materials for containment and cleaning up:

  • Sweep up and shovel.
  • Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet brushing and place in container for disposal according to local regulations (see section 13).
  • Keep in suitable, closed containers for disposal.

Reference to other sections: For disposal see section 13.


Precautions for safe handling:

  • Avoid contact with skin and eyes and the formation of dust and aerosols.
  • Provide appropriate exhaust ventilation at places where dust is formed.
  • Keep away from sources of ignition.
  • Keep away from heat and sources of ignition.

For precautions see section 2.2.

Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place.

Specific end uses

Apart from the uses mentioned in section 1.2, no other specific uses are stipulated.


Control parameters

Components with workplace control parameters: Contains no substances with occupational exposure limit values.

Exposure controls

Appropriate engineering controls:

  • Handle in accordance with good industrial hygiene and safety practice.
  • Wash hands before breaks and at the end of workday.

Personal protective equipment

Eye and face protection: Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin protection:

  • Handle with gloves.
  • Gloves must be inspected prior to use.
  • Use proper glove removal technique (without touching glove’s outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws, and good laboratory practices.
  • Wash and dry hands.

Full contact

Material: Nitrile rubber.

Minimum layer thickness: 0.11 mm.

Break through time: 480 min.

Material tested: Dermatril® (KCL 740 / Aldrich Z677272, Size M).

Splash contact

Material: Nitrile rubber.

Minimum layer thickness: 0.11 mm.

Break through time: 480 min.

Material tested: Dermatril® (KCL 740 / Aldrich Z677272, Size M).

Data source: KCL GmbH, D-36124 Eichenzell, phone +49 (0)6659 87300, e-mail

Test method: EN374

If used in solution, or mixed with other substances, and under conditions which differ from EN 374, contact the supplier of the CE approved gloves. This recommendation is advisory only and must be evaluated by an industrial hygienist and safety officer familiar with the specific situation of anticipated use by our customers. It should not be construed as offering an approval for any specific use scenario.

Body Protection

Complete suit protecting against chemicals, the type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.

Respiratory protection

Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US), or CEN (EU).

Control of environmental exposure

Prevent further leakage, or spillage if safe to do so.

Do not let product enter drains.

Discharge into the environment must be avoided.


Information on basic physical and chemical properties

a) Appearance Form: Solid.

b) Odor: No Data Available.

c) Odor Threshold: No Data Available.

d) pH: No Data Available.

e) Melting point/freezing point: No Data Available.

f) Initial boiling point and boiling range: No Data Available.

g) Flash point: Not applicable.

h) Evaporation rate: No Data Available.

i) Flammability (solid, gas): No Data Available.

j) Upper/lower flammability or explosive limits: No Data Available.

k) Vapor pressure: No Data Available.

l) Vapor density: No Data Available.

m) Relative density: No Data Available.

n) Water solubility: Soluble.

o) Partition coefficient noctanol/water: No Data Available.

p) Auto-ignition temperature: No Data Available.

q) Decomposition temperature: No Data Available.

r) Viscosity: No Data Available.

s) Explosive properties: No Data Available.

t) Oxidizing properties: The substance or mixture is classified as oxidizing with the category 2.

Other safety information: No Data Available.


Reactivity: No Data Available.

Chemical stability: Stable under recommended storage conditions.

Possibility of hazardous reactions: No Data Available.

Conditions to avoid: No Data Available.

Incompatible materials: Strong oxidizing agents.

Hazardous decomposition products

Other decomposition products: No Data Available.

In the event of fire: See section 5.


Information on toxicological effects

Acute toxicity:

LD50 Oral – mouse – 1,760 mg/kg.

Remarks: Gastrointestinal ulceration or bleeding from small intestine.

Inhalation: No Data Available.

Dermal: No Data Available.

Skin corrosion/irritation: No Data Available.

Serious eye damage/eye irritation: No Data Available.

Respiratory or skin sensitization: No Data Available.

Germ cell mutagenicity: No Data Available.


Contains a radioactive isotope which may produce cancer, and genetic mutation.

IARC: 2A – Group 2A: Probably carcinogenic to humans (Thorium tetranitrate hydrate).

ACGIH: No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen, or potential carcinogen by ACGIH.

NTP: No component of this product present at levels greater than or equal to 0.1% is identified as a known or anticipated carcinogen by NTP.

OSHA: No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen or potential carcinogen by OSHA.

Reproductive toxicity

No Data Available.

  • Reproductive toxicity (rats): Subcutaneous

Paternal Effects: Testes, epididymis, sperm duct.

  • Reproductive toxicity (Mouse): Intraperitoneal

Paternal Effects: Spermatogenesis (including genetic material, sperm morphology, motility, and count). Testes, epididymis, sperm duct.

Specific target organ toxicity – single exposure

Inhalation:  May cause respiratory irritation.

Specific target organ toxicity – repeated exposure

May cause damage to organs through prolonged or repeated exposure.

Aspiration hazard

No Data Available.

Additional Information

RTECS: XO6825000

To the best of our knowledge, the chemical, physical, and toxicological properties have not been thoroughly investigated.

Stomach Irregularities: Based on Human Evidence.


Toxicity: No Data Available.

Persistence and degradability: No Data Available

Mobility in soilNo Data Available.

Bio-accumulative potential

Bioaccumulation Oncorhynchus mykiss (rainbow trout) – 27 d – 0.001 μg/l.

Bioconcentration factor (BCF): 465.

Results of PBT and vPvB assessment

PBT/vPvB assessment not available as chemical safety assessment not required/not conducted.

Other adverse effects

An environmental hazard cannot be excluded in the event of unprofessional handling or disposal.

Toxic to aquatic life with long lasting effects.


Waste treatment methods

Product: Contact a licensed professional waste disposal service to dispose of this material. After use follow local procedures for radioactive waste. Consult local, state, and federal regulations on the disposal of radioactive waste. Observe all federal, state, and local environmental regulations.

Contaminated packaging: Dispose of as special waste in compliance with local and national regulations.


The U.S. Department of Transportation (D.O.T.) Code of Federal Regulations (49 CFR Parts 100-185), the International Air Transportation Association (IATA), International Civil Aviation Organization (ICAO) and International Maritime Organization (IMDG) are all factored into the classification and transport of material.

Proper Shipping Name:

Hazard Class:

UN/ID Number:                                                    To be determined on a case-by-case basis.                  

Special Information:

Packing Group

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


SARA 302 Components

SARA 302: No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.

SARA 313 Components

The following components are subject to reporting levels established by SARA Title III, Section 313:

Thorium tetranitrate hydrate

CAS-No.: 13823-29-5

Revision Date: 1993-04-24

SARA 311/312 Hazards

Reactivity Hazard, Acute Health Hazard, Chronic Health Hazard.

Massachusetts Right to Know Components

Thorium tetranitrate tetra hydrate

CAS-No.: 13470-07-0

Revision Date: 1993-04-24

Pennsylvania Right to Know Components

Thorium tetranitrate tetra hydrate   

CAS-No.: 13470-07-0

Revision Date: 1993-04-24

New Jersey Right to Know Components

Thorium tetranitrate tetra hydrate


Revision Date: 1993-04-24

California Prop. 65 Components

This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm.


Full text of H-Statements referred to under sections 2 and 3.

Acute toxicity.

Acute aquatic toxicity.

Chronic aquatic toxicity.

Eye irritation.

H272 May intensify fire; oxidizer.

H302 Harmful if swallowed.

H315 Causes skin irritation.

H319 Causes serious eye irritation.

H335 May cause respiratory irritation.

H373 May cause damage to organs through prolonged, or repeated exposure.

H401 Toxic to aquatic life.

H411 Toxic to aquatic life with long lasting effects.

Oxidizing solids,

HMIS Rating

Health hazard: 2.

Chronic Health Hazard: *.

Flammability: 0.

Physical Hazard 2.

NFPA Rating

Health hazard: 2.

Fire Hazard: 0.

Reactivity Hazard: 2.

Special Hazard.I: OX.

Further information

Copyright 2014 IBI Labs. License granted to make unlimited paper copies for internal use only.

IBI Labs expects that recipients of their material are in compliance with 29 CFR 1910.1200(h) which requires employers to provide employees with effective information and training on hazardous chemicals in their work area.

The information and recommendations set forth herein are presented in good faith and believed to be correct as of the revision date. However, recipients of this material should use this information only as a supplement to other information gathered by them and should make independent judgement of the suitability and accuracy of this information. IBI Labs will not be liable for any special, indirect, incidental, or consequential damages, including but not limited to, loss of any kind whatsoever resulting from the use of the information provided in this Safety Data Sheet. IBI Labs expressly includes all warranties, expressed or implied, including warranties of merchantability and fitness for a particular purpose.

This information is furnished without warranty, and any use of the product not in conformance with this Safety Data Sheet, or in combination with any other product or process, is the responsibility of the user.

Revision Date 07/25/2022



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