Neodymium (II) chloride

Crystal structure
	__ Nd 2+ __ Cl -
Space group	Pbnm (No. 62, position 3)
General
Surname	Neodymium (II) chloride
other names	Neodymium dichloride
Ratio formula	NdCl 2
Brief description	black solid
External identifiers / databases
Wikidata	Q16854883
properties
Molar mass	215.15 g mol −1
Physical state	firmly
Melting point	840 ° C (decomposition)
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Neodymium (II) chloride is an inorganic chemical compound of neodymium from the group of chlorides . It should be noted that in the phase diagram of neodymium and chlorine there are two more proven phases between neodymium (II) chloride NdCl ₂ and neodymium (III) chloride NdCl ₃ , with NdCl _2.25 and NdCl _2.36 .

Extraction and presentation

Neodymium (II) chloride can be obtained by reducing neodymium (III) chloride with neodymium in a vacuum at 800 to 900 ° C.

{\ displaystyle \ mathrm {2 \ NdCl_ {3} + Nd \ longrightarrow 3 \ NdCl_ {2}}}

properties

Neodymium (II) chloride is a black solid that appears dark green in powder form. The connection is extremely hygroscopic and can only be stored and handled under carefully dried protective gas or in a high vacuum. In air or in contact with water, it changes into hydrates while absorbing moisture , but these are unstable and more or less quickly transform into oxide chlorides or neodymium (III) hydroxide with evolution of hydrogen . The compound has an orthorhombic crystal structure of the lead (II) chloride type with the space group Pbnm (space group no. 62, position 3) . Template: room group / 62.3

Individual evidence

↑ ^a ^b ^c ^d ^e Georg Brauer , with the collaboration of Marianne Baudler u. a. (Ed.): Handbook of Preparative Inorganic Chemistry . 3rd, revised edition. tape I . Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , pp. 1081 .
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
↑ G. Meyer, Lester R. Morss: Synthesis of Lanthanide and Actinide Compounds . Springer, 1991, ISBN 0-7923-1018-7 , pp. 161 ( limited preview in Google Book search).
↑ Advances in Inorganic Chemistry and Radiochemistry . Academic Press, 1977, ISBN 0-08-057869-1 , pp. 18 ( limited preview in Google Book search).
^ G. Ferguson, J. Trotter: Structure Reports for 1985, Volume 52A: Section I Metal Section II Inorganic ... Springer, 1986, ISBN 90-277-2385-0 , pp. 130 ( limited preview in Google Book search).

[brauer-1] Georg Brauer , with the collaboration of Marianne Baudler u. a. (Ed.): Handbook of Preparative Inorganic Chemistry . 3rd, revised edition. tape I . Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , pp. 1081 .

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[G._Meyer,_Lester_R._Morss-3] G. Meyer, Lester R. Morss: Synthesis of Lanthanide and Actinide Compounds . Springer, 1991, ISBN 0-7923-1018-7 , pp. 161 ( limited preview in Google Book search).

[4] Advances in Inorganic Chemistry and Radiochemistry . Academic Press, 1977, ISBN 0-08-057869-1 , pp. 18 ( limited preview in Google Book search).

[G._Ferguson,_J._Trotter-5] G. Ferguson, J. Trotter: Structure Reports for 1985, Volume 52A: Section I Metal Section II Inorganic ... Springer, 1986, ISBN 90-277-2385-0 , pp. 130 ( limited preview in Google Book search).