Neptunium(III) chloride

This article may be expanded with text translated from the corresponding article in German. (October 2020) Click [show] for important translation instructions. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 7,150 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at [[:de:]]; see its history for attribution. You should also add the template {{Translated page}} to the talk page. For more guidance, see Wikipedia:Translation.

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 by ammonia or hydrogen at 350~400 °C:^[1]

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

Chemical properties[]

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

References[]