Radon
Also known as Alphatron, Radium emanation, Niton
Key facts
What buyers check first
- Appearance
- Colorless gas
- Melting point
- -71 °C
- Boiling point
- -61.7 °C
- Density
- 9.73 kg/m³, 0 °C, 101.3 kPa (gas)
- Solubility
- In water, 230 cm³/L at 20 °C (gas)
- HS code
- 280429
- Category
- Metals, alloys and elements
What is Radon?
Plain description, key identifiers and synonyms
Radon(0) is a monoatomic radon that has an oxidation state of zero.
Radon is a chemical element with symbol Rn and atomic number 86, rare gas.
Identifiers
Registry numbers, names and line notations, tap to copy
- IUPAC name
- radon
- CAS number
- 10043-92-2 CAS number cross-checked
- EC number
- 233-146-0
- Molecular formula
- Rn
- UNII
- Q74S4N8N1G
- InChIKey
- SYUHGPGVQRZVTB-UHFFFAOYSA-N
- InChI
- InChI=1S/Rn
- SMILES (canonical and isomeric)
- [Rn]
Synonyms
- Alphatron
- Radium emanation
- Niton
- Niton /Radon-222/
- 86Rn
- Rn
- radon atom
- Radon, radioactive
- Niton /(222)Radon
- radon hydride
- Radon element
- Atomic Radon
- Element Radon
- Element:Radon
- Element-Rn
- Element:Rn
- Radon (element)
- Radon (atomic)
- Rn (element)
- radon(0)
- [Rn]
- RADON-222
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 | Colorless gasexp.Measured value |
|---|---|
| Odour | Odorlessexp.Measured value |
| Taste | Tastelessexp.Measured value |
| Melting point | -71 °Cexp.Measured value |
| Boiling point | -61.7 °Cexp.Measured value |
| Density | 9.73 kg/m³, 0 °C, 101.3 kPa (gas)exp.Measured value |
| Solubility | In water, 230 cm³/L at 20 °C (gas)exp.Measured value |
| Vapour pressure | 1 Pa at -163 °C, 10 Pa at -152 °C, 100 Pa at -139 °C, 1 kPa at -121.4 °C, 10 kPa at -97.6 °C (solid)exp.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 | 222.00 g/molcalc.Computed value |
|---|---|
| Exact mass | 222.0176 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
No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.
GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.
Radon suppliers
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Where suppliers are based
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Radon price
Indicative price range per kg from live supplier offers
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Uses and applications
What the substance is used for, by industry and function
To initiate and influence chemical reactions, as a surface label in the study of surface reactions, in the determination of radium or thorium, in the study of the behavior of filters, in combination with Be or other light materials as a source of neutrons.
Medicine (cancer treatment) (former use), tracer in leak detection, flow-rate measurement, radiography, chemical research.
There are no significant technical uses for radon.
Radon was produced commercially for use in radiation therapy, but for the most part has been replaced by other radionuclides. Some radon is produced in research laboratories and universities for use in experimental studies.
Use classes: Inorganic substances, Radionuclides.
Pharmacological actions
- Air Pollutants, Radioactive
- Carcinogens, Environmental
Pharmacology
Radon is an element with atomic symbol Rn, atomic number 86, and 222.0.
How it is made
Radioactive decay of radium. Radon is obtained by bubbling air through a radon salt solution and collecting the gas plus air.
The various isotopes of radon, all having short half-lives, are formed by the radioactive decay of radium, actinium, and thorium.
Regulatory status
Inventories, regulations and trade controls that list this substance
No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.
HS code and trade data
Customs classification and reported world trade statistics
Global trade
World import and export statistics for the HS code Radon is traded under.
Rare gases, other
- Qatar * partner reported34.3%
- United States22.9%
- Algeria * partner reported6.8%
- China17.8%
- South Korea12.7%
- Germany9.4%
* Partner reported figures, a lower bound.
The HS code shown for Radon is indicative (it was assigned by structure rules). 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 Radon, based on the data on this page
What is Radon?
What is the CAS number of Radon?
What is the molecular formula and weight of Radon?
What is Radon used for?
Is Radon hazardous?
What is the HS code of Radon?
Where can I buy Radon?
What is the price of Radon?
Guides for buyers
Practical guides that help when you source, ship or handle Radon
- 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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