Promethium(III) nitrate
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| ImageFile = Promethium(III) nitrate hydrate.jpg
| ImageSize =
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| ImageCaption = Hydrate
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| OtherNames = Promethium trinitrate, Promethium nitrate
|Section1={{Chembox Identifiers
| CASNo = 42083-68-1
| CASNo_Ref = {{Cascite|changed|CAS}}
| ChemSpiderID = 129549568
| DTXSID = DTXSID701336994
| UNII_Ref = {{fdacite|changed|FDA}}
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| PubChem =
| PubChem_Comment = charge error
| StdInChI=1S/3NO3.Pm/c3*2-1(3)4;/q3*-1;+3
| StdInChIKey = BLVQZLMLJMPOIU-UHFFFAOYSA-N
| SMILES = [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Pm+3]
}}
|Section2={{Chembox Properties
| Formula = Pm(NO3)3
| MolarMass = 206.918 g/mol
| Appearance = Purple-pink solid (hydrate)
| Density =
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| Solubility = Soluble}}
|Section3={{Chembox Hazards
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| GHSSignalWord = Warning
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|Section6={{Chembox Related
| OtherCompounds = Samarium(III) nitrate
}}
}}
Promethium(III) nitrate is an inorganic compound, a salt of promethium and nitric acid with the chemical formula Pm(NO3)3. The compound is radioactive, soluble in water{{cite book |last1=Бекман |first1=Игорь |title=Радиохимия в 2 т. Т. 1 Фундаментальная радиохимия. Учебник и практикум для академического бакалавриата |date=1 July 2021 |publisher=Litres |isbn=978-5-04-026362-2 |page=157 |url=https://books.google.com/books?id=hhYkEAAAQBAJ&dq=%D0%BD%D0%B8%D1%82%D1%80%D0%B0%D1%82+%D0%BF%D1%80%D0%BE%D0%BC%D0%B5%D1%82%D0%B8%D1%8F&pg=PA157 |access-date=20 August 2021 |language=ru}} and forms crystalline hydrates.{{cite book |last1=Macintyre |first1=Jane E. |title=Dictionary of Inorganic Compounds |date=23 July 1992 |publisher=CRC Press |isbn=978-0-412-30120-9 |page=3619 |url=https://books.google.com/books?id=9eJvoNCSCRMC&dq=Promethium(III)+nitrate&pg=PA3619 |access-date=20 August 2021 |language=en}}
Synthesis
Reaction of promethium and nitric acid:
:{{chem2|Pm + 6 HNO3 -> Pm(NO3)3 + 3 NO2 + 3 H2O}}
Physical properties
Promethium(III) nitrate hydrate forms a purple-pink solid.{{Cite journal |last1=Driscoll |first1=Darren M. |last2=White |first2=Frankie D. |last3=Pramanik |first3=Subhamay |last4=Einkauf |first4=Jeffrey D. |last5=Ravel |first5=Bruce |last6=Bykov |first6=Dmytro |last7=Roy |first7=Santanu |last8=Mayes |first8=Richard T. |last9=Delmau |first9=Lætitia H. |last10=Cary |first10=Samantha K. |last11=Dyke |first11=Thomas |last12=Miller |first12=April |last13=Silveira |first13=Matt |last14=VanCleve |first14=Shelley M. |last15=Davern |first15=Sandra M. |date=May 2024 |title=Observation of a promethium complex in solution |journal=Nature |language=en |volume=629 |issue=8013 |pages=819–823 |doi=10.1038/s41586-024-07267-6 |pmid=38778232 |pmc=11111410 |bibcode=2024Natur.629..819D |issn=1476-4687}}
It forms crystalline hydrates of the composition {{chem2|Pm(NO3)3*6H2O}}.{{cite book |title=Chemistry, session C |date=1965 |publisher=U.S. Department of Commerce |page=114 |url=https://books.google.com/books?id=YjUlAQAAIAAJ&dq=Promethium(III)+nitrate&pg=PP66 |access-date=20 August 2021 |language=en}}
Chemical properties
Promethium(III) nitrate thermally decomposes to form promethium(III) oxide.{{cite book |last1=Orr |first1=P. B. |title=Evidence of the Absence of Long-lived Isotopes of Promethium from Fission of Uranium, and the Purification of Promethium for the Establishment of a Primary Spectrographic Standard |date=1965 |publisher=Oak Ridge National Laboratory |page=10 |url=https://books.google.com/books?id=CA3NX-EeQqIC&dq=Promethium(III)+nitrate&pg=PA10 |access-date=20 August 2021 |language=en}}