Neptunium(III) chloride

Neptunium(III) chloride
Names
	IUPAC name Neptunium(III) chloride
	Other names Neptunium trichloride
Identifiers
CAS Number	20737-06-8 ;
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. It has strong radioactivity.

Production

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

{\mathsf {2\ NpCl_{4}\ +\ H_{2}\ \longrightarrow \ 2\ NpCl_{3}\ +\ 2\ HCl}}

Neptunium(III) chloride hydrolyze at 450 °C and form an oxychloride NpOCl.[1]

《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.

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