Uranium
Also known as Uranium, elemental, Uranium I ((238)U), Uranium 238
Key facts
What buyers check first
- Appearance
- Silver-white, malleable, ductile, lustrous solid
- Melting point
- 1,135 °C
- Boiling point
- 4,131 °C
- Density
- 19.1 g/cm³
- Solubility
- Insol in water, alkalis, alcohol, soluble in acids
- HS code
- 284410
- Category
- Metals, alloys and elements
- UN number
- UN 2979
What is Uranium?
Plain description, key identifiers and synonyms
Uranium(0) is a monoatomic uranium.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- uranium
- CAS number
- 7440-61-1 CAS number cross-checkedOther or deprecated CAS: 13598-56-6
- EC number
- 231-170-6
- Molecular formula
- U
- UNII
- 4OC371KSTK, 5PI36AS4G7
- InChIKey
- JFALSRSLKYAFGM-UHFFFAOYSA-N
- InChI
- InChI=1S/U
- SMILES (canonical and isomeric)
- [U]
Synonyms
- Uranium, elemental
- Uranium I ((238)U)
- Uranium 238
- Uranium u-238
- Uranium,
- Uranium and compounds
- Uranium metal
- Uranium atom
- Uranium, natural
- Uranium cation (6+)
- uranium(6+) ion
- uranium(5+)
- uranium(6+)
- 238U Element
- uranio
- Uran
- Uranium, isotope of mass 238
- Uranium, ion(U6 )
- Uranium Standard: U @ 10 microg/mL in 2% HNO3
- Uranium, ion (U6+)
- Uranium Standard: U @ 1000 microg/mL in 5% HNO3
- Uranium Standard: U @ 10000 microg/mL in 5% HNO3
- Uranium element
- Atomic Uranium
- Element Uranium
Show all 37 synonymsShow fewer synonyms
- Element:Uranium
- Element-U
- Element:U
- Natural Uranium Ore Concentrate (U?O?) Powder Certified Reference Material
- Uranium (atomic)
- Uranium (element)
- uranium(0)
- uranium(V) cation
- U (element)
- IUM
- uranium(5+) ion
- uranium(VI) cation
Physical and chemical properties
Measured values and descriptors computed from the structure
Physical and chemical properties
Measured values, check the supplier specification for your grade
| Appearance | Silver-white, malleable, ductile, lustrous solidexp.Measured value |
|---|---|
| Melting point | 1,135 °Cexp.Measured value |
| Boiling point | 4,131 °Cexp.Measured value |
| Density | 19.1 g/cm³exp.Measured value |
| Autoignition temperature | 20 °Cexp.Measured value |
| Solubility | Insol in water, alkalis, alcohol, soluble in acidsexp.Measured value |
| Vapour pressure | 0 mm Hg at 20 °Cexp.Measured value |
Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.
Computed descriptors
Calculated from the structure, useful for screening and formulation
| Molecular weight | 238.03 g/molcalc.Computed value |
|---|---|
| Exact mass | 238.0508 Dacalc.Computed value |
| LogP (octanol/water) | 0calc.Computed value |
| Topological polar surface area | 0 Ųcalc.Computed value |
| Hydrogen bond donors | 0calc.Computed value |
| Hydrogen bond acceptors | 0calc.Computed value |
| Rotatable bonds | 0calc.Computed value |
| Heavy atoms | 1calc.Computed value |
| Rings | 0calc.Computed value |
| Aromatic rings | 0calc.Computed value |
| Fraction sp3 carbons | 0calc.Computed value |
| Formal charge | 0calc.Computed value |
| Stereocentres | 0calc.Computed value |
Calculated for screening. Confirm critical figures with the supplier.
Safety and hazards
GHS classification summary, not a safety data sheet
Hazard statements
- H300Fatal if swallowed.
- H330Fatal if inhaled.
- H373May cause damage to organs through prolonged or repeated exposure.
- H413May cause long lasting harmful effects to aquatic life.
Precautionary statements (16)
- P260Do not breathe dust, fume, gas, mist, vapours or spray.
- P264Wash skin thoroughly after handling.
- P270Do not eat, drink or smoke when using this product.
- P271Use only outdoors or in a well-ventilated area.
- P273Avoid release to the environment.
- P284In case of inadequate ventilation wear respiratory protection.
- P301 + P316If swallowed: Get emergency medical help immediately.
- P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
- P316Get emergency medical help immediately.
- P319Get medical help if you feel unwell.
- P320Specific treatment is urgent (see supplemental first aid instructions on the label).
- P321Specific treatment (see supplemental first aid instructions on the label).
- P330Rinse mouth.
- P403 + P233Store in a well-ventilated place. Keep container tightly closed.
- P405Store locked up.
- P501Dispose of contents and container in accordance with local regulations.
- UN number
- UN 2979
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Full safety data and first aidUranium suppliers
Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings
- Australia, Osborne Park ManufacturerUnclaimed profileUraniumGrade, purity and minimum order on requestPrice on request
- JapanUnclaimed profileUraniumGrade, purity and minimum order on requestPrice on request
- Price on request
- China, Shanghai ManufacturerUnclaimed profileUraniumGrade, purity and minimum order on requestPrice on request
- United States ManufacturerUnclaimed profileUraniumGrade, purity and minimum order on requestPrice on request
- Price on request
- United States, San DiegoUnclaimed profileUraniumGrade, purity and minimum order on requestPrice on request
- United States, San DiegoUnclaimed profileUraniumGrade, purity and minimum order on requestPrice on request
Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.
Where suppliers are based
15 suppliers in 8 countries
- China5
- United States3
- Australia2
- Germany1
- France1
- Japan1
- and 2 more countries
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Uranium price
Indicative price range per kg from live supplier offers
Suppliers quote this chemical on request. Send one free request and compare quotes side by side.
Uses and applications
What the substance is used for, by industry and function
Uranium is used in nuclear power reactors and nuclear weapons. Uranium depleted of uranium-235 is used to manufacture armor-piercing ammunition, in inertial guidance devices and gyro compasses, as a counterweight for missile reentry vehicles, as radiation shielding material, and x-ray targets.
Uranium metal is used for X-ray targets for production of high-energy X-rays.
The four major uses of depleted uranium at the present time include radiation shielding, counterbalance weights and military armor and ammunition. (Depleted uranium).
The density of depleted uranium makes it a suitable material for the shielding of gamma radiation. For this reason, uranium has been used extensively in the medical, research and transport sectors as radiation beam collimators and containers to transport nuclear sources. Thus, depleted uranium has often been used as a shield for radioactive sources in tele-therapy usits used in the treatmen of cancer and in linear accelerators. (Depleted uranium).
Use classes: Inorganic substances, Radionuclides.
Pharmacology
Uranium is a radioactive element with atomic symbol U, atomic number 92, and atomic weight 238.
How it is made
Finely ground ore is leached under oxidizing conditions to give uranyl nitrate solution. The uranyl nitrate, purified by solvent extraction (ether, alkyl phosphate esters), is then reduced with hydrogen to uranium dioxide. This is treated with hydrogen fluoride to obtain tetrafluoride, followed by either electrolysis in fused salts or by reduction with calcium or magnesium. (Uranium metal)
The uranium ore is digested with nitric acid to form uranyl nitrate, this is extracted with tributylphosphate + kerosene. The nitrate is calcined to uranium trioxide.
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Uranium trioxide is reduced to uranium dioxide in furnaces supplied with hydrogen. The uranium dioxide is converted to uranium tetrafluoride with anhydrous hydrofluoric acid. Pure uranium metal is obtained by reduction of uranium tetrafluoride in a thermit type of reaction carried out in metal bombs.
Uranium metal is produced by reduction of uranium tetrafluoride by the Ames process. ... If 98% uranium tetrafluoride is used, the yield may be 97% pure metal.
Regulatory status
Inventories, regulations and trade controls that list this substance
Europe
- EU harmonised classification (CLP Annex VI)Index no: 092-001-00-8
United States
- TSCA inventory (USA)Status: Active in US commerce
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Uranium is traded under.
Natural uranium and its compounds, alloys, dispersions (including cermets), ceramic…
- Canada42.9%
- Kazakhstan * partner reported27.8%
- United States12.6%
- China31.8%
- United States21.6%
- Netherlands17.7%
* Partner reported figures, a lower bound.
The HS code shown for Uranium is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.
Related chemicals
Parent and salt forms, stereoisomers, similar structures and isomers
Stereoisomers and isotopic forms
Same connectivity, different stereochemistry or isotopes (same InChIKey skeleton)
Similar structures
Nearest neighbours by Morgan fingerprint Tanimoto similarity
Frequently asked questions
Quick answers about Uranium, based on the data on this page
What is Uranium?
What is the CAS number of Uranium?
What is the molecular formula and weight of Uranium?
What is Uranium used for?
Is Uranium hazardous?
What is the HS code of Uranium?
Where can I buy Uranium?
What is the price of Uranium?
Guides for buyers
Practical guides that help when you source, ship or handle Uranium
- Guide, SafetyHow to read a safety data sheet in 10 minutesA section by section method to pull the essentials out of any 16 section SDS: identity, hazards, composition, storage, PPE, properties, transport and emergency measures.Read
- Guide, Trade and logisticsShipping dangerous goods: UN numbers, classes and packing groupsHow the UN dangerous goods system works for chemicals, from the nine classes and UN numbers to packing groups, UN packaging marks, labels, documents and segregation.Read
- Guide, SafetyGHS pictograms, signal words and hazard statements explainedA practical guide to the nine GHS pictograms, the signal words Danger and Warning, H and P statements, and how to read a chemical label in seconds.Read
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