Community hub
0 subscribers7 pages, 0 posts
Recent from talks
All channels
Be the first to start a discussion here.
Be the first to start a discussion here.
Be the first to start a discussion here.
Be the first to start a discussion here.
Contribute something
Welcome to the community hub built to collect knowledge and have discussions related to Radium hydroxide.
Nothing was collected or created yet.
Radium hydroxide
View on Wikipediafrom Wikipedia
| Identifiers | |
|---|---|
3D model (JSmol)
|
|
| ChemSpider | |
| |
| |
| Properties | |
| H2O2Ra | |
| Molar mass | 260 g·mol−1 |
| Appearance | colorless crystals |
| soluble | |
| Related compounds | |
Related compounds
|
Barium hydroxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Radium hydroxide is an inorganic compound of radium, hydrogen, and oxygen with the chemical formula Ra(OH)2.[1] Stability constant of aqueous RaOH+ ion pair at zero ionic strength is equal to 5.[2]
Synthesis
[edit]- A reaction of radium metal with water:[citation needed]
- Ra + 2H2O → Ra(HO)2 + H2
- The reaction of radium oxide and water can also generate radium hydroxide, and the reaction releases a lot of heat:[citation needed]
- RaO + H2O → Ra(HO)2
- The compound can also be prepared by reacting radium nitrate with NaOH in solution.[citation needed]
Physical properties
[edit]Radium hydroxide forms colorless crystals that dissolve in water better than does barium hydroxide, and has more basic properties.
The compound forms a hydrate of the composition Ra(OH)2·8H2O.[3]
Radium hydroxide is a caustic, toxic, and corrosive substance. It is significantly more toxic than barium hydroxide (Ba(OH)2) and strontium hydroxide (Sr(OH)2).
References
[edit]- ^ Brown, Paul L.; Matyskin, Artem V.; Ekberg, Christian (1 June 2022). "The aqueous chemistry of radium". Radiochimica Acta. 110 (6–9): 505–513. doi:10.1515/ract-2021-1141. ISSN 2193-3405. S2CID 248301187.
- ^ Matyskin, Artem V.; Brown, Paul L.; Ekberg, Christian (2019). "Weak barium and radium hydrolysis using an ion exchange method and its uncertainty assessment". Journal of Chemical Thermodynamics. 128: 362–371. Bibcode:2019JChTh.128..362M. doi:10.1016/j.jct.2018.08.037. S2CID 105458974.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Schweitzer, George K.; Pesterfield, Lester L. (14 January 2010). The Aqueous Chemistry of the Elements. Oxford University Press. p. 448. ISBN 978-0-19-974219-6. Retrieved 8 June 2023.