Neptunium(III) chloride

Neptunium(III) chloride
Names

IUPAC name Neptunium(III) chloride
Other names Neptunium trichloride
Identifiers
CAS Number	20737-06-8^Y
3D model (JSmol)	Interactive image Interactive image
PubChem CID	19902958
InChI InChI=1S/3ClH.Np/h3*1H;/q;;;+3/p-3 Key: YCRHCDNZKKGRFF-UHFFFAOYSA-K
SMILES Cl[Np](Cl)Cl [Cl-].[Np+3].[Cl-].[Cl-]
Properties
Chemical formula	NpCl₃
Molar mass	343.41 g/mol
Appearance	green solid^[1]
Density	5.58g/cm³
Melting point	800 °C (1,470 °F; 1,070 K)^[2]^[1]
Related compounds
Other anions	Neptunium(III) fluoride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Neptunium(III) chloride or neptunium trichloride is an inorganic compound with a chemical formula NpCl₃. This salt is strongly radioactive.

Production

Neptunium(III) chloride can be produced by reducing neptunium(IV) chloride by ammonia or hydrogen at 350~400 °C:^[1]

{\ce {2{NpCl4}+{H2}\longrightarrow 2{NpCl3}+2{HCl}}}

Neptunium(III) chloride hydrolyzes at 450 °C and forms an oxychloride NpOCl.^[1]

^ ^a ^b ^c ^d 《无机化学丛书》.第十卷锕系锕系后元素. 张青莲等. 科学出版社. 8.3.2 镎的卤化物. 2.氯化物 . P₁₆₀. ISBN 978-7-03-030572-5
^ Arnold F. Holleman, Nils Wiberg: Lehrbuch der Anorganischen Chemie, 102. Auflage, de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1, S. 1969.

Np(III)

Np(IV)

Organoneptunium(IV) compounds	Np(C₂O₄)₂ Np(C₈H₈)₂

Np(V)

Np(VI)

Np(VII)

This page was last edited on 5 January 2024, at 11:38