Name: Thorium Metal
CAS: 7440-29-1
EC Number: 231-139-7
Chemical Formular: Th
Appearance: silvery, often with black tarnish
Molecular Weight: 232.038 g/mol
Melting Point: 2023 K (1750 °C, 3182 °F)
Boiling Point: 5061 K (4788 °C, 8650 °F)
Density: 11.7 g/cm3
Solubility in water: n/a
Exact Mass: 232.03805 g/mol
Monoisotopic Mass: 232.03805 g/mol
Topological Polar Surface Area: 0 A^2
Complexity: 0
MATERIAL SAFETY DATA SHEETS
According to the UN GHS revision 8
SECTION 1: Identification
1.1
GHS Product identifier
| Product name | Thorium Metal |
|---|
1.2
Other means of identification
| Product number | – |
|---|---|
| Other names | Thorium,pyrophoric;Torio;Thorium-232 |
1.3
Recommended use of the chemical and restrictions on use
| Identified uses | Industrial and scientific research uses. |
|---|---|
| Uses advised against | no data available |
1.4
Supplier’s details
| Company | Elements China Limited |
|---|---|
| Address | Building 2, No.5555, Shenzhuan Hwy, Shanghai , China |
| Telephone | +86-021-3776-2181 |
1.5Emergency phone number
| Emergency phone number | +86-021-3776-2181 |
|---|---|
| Service hours | Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours). |
SECTION 2: Hazard identification
2.1
Classification of the substance or mixture
Acute toxicity – Category 4, Oral
Skin irritation, Category 2
Eye irritation, Category 2
Specific target organ toxicity – repeated exposure, Category 2
2.2
GHS label elements, including precautionary statements
| Pictogram(s) | 
|
|---|---|
| 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 |
| Precautionary statement(s) | |
| Prevention | P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/… P260 Do not breathe dust/fume/gas/mist/vapours/spray. |
| Response | P301+P317 IF SWALLOWED: Get medical help. P330 Rinse mouth. P302+P352 IF ON SKIN: Wash with plenty of water/… P321 Specific treatment (see … on this label). P332+P317 If skin irritation occurs: Get medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P319 Get medical help if you feel unwell. |
| Storage | none |
| Disposal | P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal. |
2.3
Other hazards which do not result in classification
no data available
SECTION 3: Composition/information on ingredients
3.1
Substances
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Thorium Metal | – | 7440-29-1 | 231-139-7 |
SECTION 4: First-aid measures
4.1
Description of necessary first-aid measures
If inhaled
Fresh air, rest.
Following skin contact
Remove contaminated clothes. Rinse and then wash skin with water and soap. Use radiation detector to ensure no remaining contamination.
Following eye contact
Rinse with plenty of water for several minutes (remove contact lenses if easily possible).
Following ingestion
Rinse mouth.
4.2
Most important symptoms/effects, acute and delayed
no data available
4.3
Indication of immediate medical attention and special treatment needed, if necessary
no data available
SECTION 5: Fire-fighting measures
5.1
Suitable extinguishing media
Use dry chemical, carbon dioxide or alcohol-resistant foam.
5.2
Specific hazards arising from the chemical
Highly flammable if powdered. Finely dispersed particles form explosive mixtures in air.
5.3
Special protective actions for fire-fighters
Use special powder, dry sand. NO other agents. In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water.
SECTION 6: Accidental release measures
6.1
Personal precautions, protective equipment and emergency procedures
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.
6.2
Environmental precautions
Prevent further spillage or leakage if it is safe to do so. Do not let the chemical enter drains. Discharge into the environment must be avoided.
6.3
Methods and materials for containment and cleaning up
Collect and arrange disposal. Keep the chemical in suitable and closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment. Adhered or collected material should be promptly disposed of, in accordance with appropriate laws and regulations.
SECTION 7: Handling and storage
7.1
Precautions for safe handling
NO open flames, NO sparks and NO smoking. NO contact with hot surfaces. Do NOT expose to friction or shock. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.
Handling in a well ventilated place.
Wear suitable protective clothing.
Avoid contact with skin and eyes.
Avoid formation of dust and aerosols.
Use non-sparking tools.
Prevent fire caused by electrostatic discharge steam.
7.2
Conditions for safe storage, including any incompatibilities
Fireproof. Separated from strong oxidants. Cool. Well closed. Keep in a well-ventilated room.
SECTION 8: Exposure controls/personal protection
8.1
Control parameters
Occupational Exposure limit values
no data available
Biological limit values
no data available
8.2
Appropriate engineering controls
Ensure adequate ventilation.
Handle in accordance with good industrial hygiene and safety practice.
Set up emergency exits and the risk-elimination area.
8.3Individual protection measures, such as personal protective equipment (PPE)
Eye/face protection
Wear face shield or eye protection in combination with breathing protection.
Skin protection
Protective gloves. Protective clothing.
Respiratory protection
Use closed system and ventilation.
Thermal hazards
no data available
SECTION 9: Physical and chemical properties and safety characteristics
| Physical state | GREY-WHITE METAL POWDER |
|---|---|
| Colour | no data available |
| Odour | no data available |
| Melting point/freezing point | 1750°C |
| Boiling point or initial boiling point and boiling range | 4788°C |
| Flammability | no data available |
| Lower and upper explosion limit/flammability limit | no data available |
| Flash point | no data available |
| Auto-ignition temperature | 270°C |
| Decomposition temperature | no data available |
| pH | no data available |
| Kinematic viscosity | no data available |
| Solubility | no data available |
| Partition coefficient n-octanol/water | no data available |
| Vapour pressure | no data available |
| Density and/or relative density | 1.03 g/mL at 25ºC |
| Relative vapour density | no data available |
| Particle characteristics | no data available |
SECTION 10: Stability and reactivity
10.1
Reactivity
no data available
10.2
Chemical stability
no data available
10.3
Possibility of hazardous reactions
Dust explosion possible if in powder or granular form, mixed with air. If dry, it can be charged electrostatically by swirling, pneumatic transport, pouring, etc.The substance may ignite spontaneously on contact with air. May decompose explosively on shock, friction or concussion. Reacts violently with strong oxidants. Reacts with halogens, hydrogen and sulfur.
10.4
Conditions to avoid
no data available
10.5
Incompatible materials
no data available
10.6
Hazardous decomposition products
no data available
SECTION 11: Toxicological information
Acute toxicity
- Oral: no data available
- Inhalation: no data available
- Dermal: no data available
Skin corrosion/irritation
no data available
Serious eye damage/irritation
no data available
Respiratory or skin sensitization
no data available
Germ cell mutagenicity
no data available
Carcinogenicity
no data available
Reproductive toxicity
no data available
STOT-single exposure
May cause mechanical irritation to the eyes. Inhalation of the aerosol may cause damage to the lungs.
STOT-repeated exposure
Repeated or prolonged inhalation of the aerosol may cause effects on the lungs. This substance is carcinogenic to humans.
Aspiration hazard
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.
SECTION 12: Ecological information
12.1
Toxicity
- Toxicity to fish: no data available
- Toxicity to daphnia and other aquatic invertebrates: no data available
- Toxicity to algae: no data available
- Toxicity to microorganisms: no data available
12.2
Persistence and degradability
no data available
12.3
Bioaccumulative potential
no data available
12.4
Mobility in soil
no data available
12.5
Other adverse effects
no data available
SECTION 13: Disposal considerations
13.1
Disposal methods
Product
The material can be disposed of by removal to
a licensed chemical destruction plant or by controlled incineration
with flue gas scrubbing. Do not contaminate water, foodstuffs,
feed or seed by storage or disposal. Do not discharge to sewer systems.
Contaminated packaging
Containers can be triply rinsed (or equivalent) and
offered for recycling or reconditioning.
Alternatively, the packaging can be punctured to
make it unusable for other purposes and then be disposed of
in a sanitary landfill. Controlled incineration
with flue gas scrubbing is possible for combustible packaging materials.
SECTION 14: Transport information
14.1
UN Number
| ADR/RID: UN3264 (For reference only, please check.) | IMDG: UN3264 (For reference only, please check.) | IATA: UN3264 (For reference only, please check.) |
14.2
UN Proper Shipping Name
| ADR/RID: CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (For reference only, please check.) | IMDG: CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (For reference only, please check.) | IATA: CORROSIVE LIQUID, ACIDIC, INORGANIC, N.O.S. (For reference only, please check.) |
14.3
Transport hazard class(es)
| ADR/RID: 8 (For reference only, please check.) | IMDG: 8 (For reference only, please check.) | IATA: 8 (For reference only, please check.) |
14.4
Packing group, if applicable
| ADR/RID: I (For reference only, please check.) | IMDG: I (For reference only, please check.) | IATA: I (For reference only, please check.) |
14.5
Environmental hazards
| ADR/RID: No | IMDG: No | IATA: No |
14.6
Special precautions for user
no data available
14.7
Transport in bulk according to IMO instruments
no data available
SECTION 15: Regulatory information
15.1
Safety, health and environmental regulations specific for the product in question
| Chemical name | Common names and synonyms | CAS number | EC number |
|---|---|---|---|
| Thorium Metal | – | 7440-29-1 | 231-139-7 |
| European Inventory of Existing Commercial Chemical Substances (EINECS) | Listed. | ||
| EC Inventory | Listed. | ||
| United States Toxic Substances Control Act (TSCA) Inventory | Listed. | ||
| China Catalog of Hazardous chemicals 2015 | Not Listed. | ||
| New Zealand Inventory of Chemicals (NZIoC) | Listed. | ||
| Philippines Inventory of Chemicals and Chemical Substances (PICCS) | Listed. | ||
| Vietnam National Chemical Inventory | Listed. | ||
| Chinese Chemical Inventory of Existing Chemical Substances (China IECSC) | Not Listed. | ||
| Korea Existing Chemicals List (KECL) | Not Listed. | ||
SECTION 16: Other information
Information on revision
| Creation Date | Sep 01, 2020 |
|---|---|
| Revision Date | Sep 01, 2020 |
Abbreviations and acronyms
- CAS: Chemical Abstracts Service
- ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
- RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
- IMDG: International Maritime Dangerous Goods
- IATA: International Air Transportation Association
- TWA: Time Weighted Average
- STEL: Short term exposure limit
- LC50: Lethal Concentration 50%
- LD50: Lethal Dose 50%
- EC50: Effective Concentration 50%
References
- IPCS – The International Chemical Safety Cards (ICSC), website:
http://www.ilo.org/dyn/icsc/showcard.home - HSDB – Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm
- IARC – International Agency for Research on Cancer, website: http://www.iarc.fr/
- eChemPortal – The Global Portal to Information on Chemical Substances by OECD, website:
http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en - CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple
- ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp
- ERG – Emergency Response Guidebook by U.S. Department of Transportation, website:
http://www.phmsa.dot.gov/hazmat/library/erg - Germany GESTIS-database on hazard substance, website:
http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp - ECHA – European Chemicals Agency, website: https://echa.europa.eu/
Other Information
This material and its decay products are radioactive.Depending on degree of exposure, estimation of dose received may be required by whole body counting techniques.Depending on the degree of exposure, periodic medical examination is suggested.Storage in a poorly ventilated area may result in a buildup of gaseous radioactive decay products.Prolonged retention in the body leads to long term alpha-irradiation of the tissues.Refer for medical attention if breathing difficulties and/or fever develop.Do NOT take working clothes home.
Any questions regarding this SDS, Please send your inquiry to [email protected]
Disclaimer: The above information is believed to be correct but does not purport to be all inclusive and
shall be used only as a guide. The information in this document is based on the present state of our
knowledge and is applicable to the product with regard to appropriate safety precautions. It does not
represent any guarantee of the properties of the product. We as supplier shall not be held liable for any
damage resulting from handling or from contact with the above product.
| Chemical Formular: | Th |
| PubChem CID: | 23960 |
| IUPAC Name: | thorium |
| Inchl: | InChI=1S/Th |
| InChI Key: | ZSLUVFAKFWKJRC-UHFFFAOYSA-N |
| Canonical SMILES: | [Th] |
| Pictogram(s): | n/a |
| Signal: | n/a |
| GHS Hazard Statements: | n/a |
| Hazard Codes: | n/a |
| Risk Codes: | n/a |
| Precautionary Statement Codes: | n/a |
| Flash Point: | n/a |
Thorium Nanofoil
Thorium compounds
Thorium, elemental
Thorium metal, pyrophoric
Thorium is commonly used to make alloys to increase the strength of metals;Burning thorium dioxide gives off a strong white light so it used to be a white hot gauze cover for gas lamps.Thorium decay stores much more energy than uranium, coal, oil, and other fuels combined, and it contains much more than uranium, so thorium is a promising source of energy.Thorium is also a common ingredient in the manufacture of advanced lenses.Thorium is bombarded with neutrons to produce a nuclear fuel, uranium 233.
In addition, thorium is also a safer nuclear fuel than uranium, which is the future development direction of nuclear energy utilization.
Fiber drums, steel drums, and bulk bags
