Uranium hexafluoride
Also known as Hexafluorouranium, Uranium fluoride (UF6), hexafluoridouranium
Key facts
What buyers check first
- Appearance
- Volatile white monoclinic crystalline solid
- Melting point
- 64.5 °C
- Boiling point
- 56.5 °C
- Density
- 5.09 at 20.7 °C/4 °C, (liq): 3.595 at 70 °C
- Solubility
- Sol in liq chlorine and bromine. Sol in carbon tetrachloride, chloroform, and sym tetrac…
- HS code
- 284410
- Category
- Chlorides and other halides
- UN number
- UN 2977
What is Uranium hexafluoride?
Plain description, key identifiers and synonyms
Uranium hexafluoride is a uranium halide.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- hexafluorouranium
- CAS number
- 7783-81-5 CAS number cross-checkedOther or deprecated CAS: 11133-71-4, 12134-48-4
- EC number
- 232-028-6
- Molecular formula
- F6U
- UNII
- N06GJ1D94J
- InChIKey
- SANRKQGLYCLAFE-UHFFFAOYSA-H
- InChI
- InChI=1S/6FH.U/h6*1H;/q;;;;;;+6/p-6
- SMILES (canonical and isomeric)
- F[U](F)(F)(F)(F)F
Synonyms
- Hexafluorouranium
- Uranium fluoride (UF6)
- hexafluoridouranium
- uranium(VI) fluoride
- uranium(6+) fluoride
- Uranium hexafluoride-238u
- Uranium fluoride
- Uranium fluoride (UF6), (OC-6-11)-
- Uranhexafluorid
- uranium(6+) hexafluoride
- Uranium-238 hexafluoride
- Uranium fluoride (U2F9)
- Uranium fluoride (238UF6)
- [UF6]
- UN 2977
- UN 2978
- Uranium hexafluoride, fissile excepted or non-fissile
- Uranium hexafluoride, fissile (with more than 1% U-2335) [UN2977] [Radioactive]
- Uranium hexafluoride, fissile excepted or non-fissile [UN2978] [Radioactive]
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 | Volatile white monoclinic crystalline solidexp.Measured value |
|---|---|
| Melting point | 64.5 °Cexp.Measured value |
| Boiling point | 56.5 °Cexp.Measured value |
| Density | 5.09 at 20.7 °C/4 °C, (liq): 3.595 at 70 °Cexp.Measured value |
| Solubility | Sol in liq chlorine and bromine. Sol in carbon tetrachloride, chloroform, and sym tetrachloroethane, Cl2CHCHCl2, which forms the most stable soln, extensive reaction occurring only after several days at room temp.exp.Measured value |
| Vapour pressure | 115 mm Hg at 25 °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 | 352.02 g/molcalc.Computed value |
|---|---|
| Exact mass | 352.0412 Dacalc.Computed value |
| LogP (octanol/water) | 2.52calc.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 | 7calc.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
- UN number
- UN 2977
- Transport hazard class
- 7
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 hexafluoride suppliers
Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings
- United States, Santa Clara ManufacturerUnclaimed profileUranium FluorideGrade, purity and minimum order on requestPrice on request
- United States ManufacturerUnclaimed profileUranium hexafluorideGrade, purity and minimum order on requestPrice on request
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2 suppliers in 1 country
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Uranium hexafluoride price
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Uses and applications
What the substance is used for, by industry and function
/Intermediate in the/ gaseous diffusion process for separating isotopes of uranium.
/Intermediate in the manufacture of/ nuclear fuel.
How it is made
Prepd by the action of fluorine on uranium metal or carbide, on uranium pentachloride, on uranium tetrafluoride, on triuranium octaoxide in the presence of carbon. It appears that all uranium cmpd when heated with fluorine to a sufficiently high temp give uranium hexafluoride: National Nuclear Energy Series VIII-5, JJ Katz, E Rabinowitch, The Chemistry of Uranium, Part I (New York, 1951) pp 396-449.
(1) Triuranium octoxide (U3O8) and nitric acid react to form a soln of uranyl nitrate, this is decomposed to uranium trioxide and reduced to the dioxide with hydrogen.
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The dioxide as a fluidized bed is reacted with hydrogen fluoride. The resulting tetrafluoride is fluorinated to the hexafluoride. (2) Triuranium octoxide is converted directly to the hexafluoride with hydrogen fluoride and fluorine, then purified by fractional distillation.
Uranyl nitrate + hydrogen fluoride + fluorine (wet uranium hexafluoride process)
Regulatory status
Inventories, regulations and trade controls that list this substance
United States
- TSCA inventory (USA)Status: Inactive 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 hexafluoride 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 hexafluoride is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.
Frequently asked questions
Quick answers about Uranium hexafluoride, based on the data on this page
What is Uranium hexafluoride?
What is the CAS number of Uranium hexafluoride?
What is the molecular formula and weight of Uranium hexafluoride?
What is Uranium hexafluoride used for?
Is Uranium hexafluoride hazardous?
What is the HS code of Uranium hexafluoride?
Where can I buy Uranium hexafluoride?
What is the price of Uranium hexafluoride?
Guides for buyers
Practical guides that help when you source, ship or handle Uranium hexafluoride
- Article, SourcingHow to write an RFQ that gets fast and accurate quotesWhat suppliers need to quote quickly and comparably: exact product identity, quantity and packing, delivery terms, documents, samples and payment, with a ready to use template.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, Trade and logisticsHS codes for chemicals and why they matterHow the Harmonized System classifies chemicals, the chapters that matter, the rules for chemically defined compounds and mixtures, and practical steps to find the right code.Read
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