Tin (II) iodide

Crystal structure
	__ Sn 2+ __ I -
General
Surname	Tin (II) iodide
other names	Tin diiodide
Ratio formula	SnI 2
Brief description	yellow to red solid
External identifiers / databases
EC number	233-667-3
ECHA InfoCard	100.030.594
PubChem	25138
ChemSpider	23483
Wikidata	Q2506051
properties
Molar mass	372.52 g mol −1
Physical state	firmly
density	5.28 g cm −3 (25 ° C)
Melting point	320 ° C
boiling point	714 ° C
solubility	slightly soluble in water; soluble in benzene;
safety instructions
H and P phrases	H: 302-312-332-315-317-319-335-360
	P: 201-261-280-305 + 351 + 338-308 + 313
Toxicological data	100 mg kg −1 ( LD 50 , mouse , iv )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Tin (II) iodide is an inorganic chemical compound of tin from the group of iodides .

Extraction and presentation

Tin (II) iodide can be obtained by reacting tin with iodine at more than 600 ° C, whereby tin (IV) iodide is first formed, which reacts with excess tin to form tin (II) iodide.

{\ displaystyle \ mathrm {Sn + I_ {2} \ longrightarrow SnI_ {2}}}

It can also be represented by reacting a tin (II) chloride solution with potassium iodide :

{\ displaystyle {\ ce {SnCl2 + 2 KI -> SnI2 + 2 KCl}}}

properties

Tin (II) iodide is a yellow to red solid that is sparingly soluble in water. It has a monoclinic crystal structure with the space group C 2 / m (space group no. 12) , the lattice parameters a = 1417 pm, b = 453.5 pm, c = 1087 pm, 92 ° and six formula units per unit cell . It forms halogen complexes with halides. Template: room group / 12

Individual evidence

↑ Data sheet Tin (II) iodide, ultra dry, 99.999% (metals basis) from AlfaAesar, accessed on July 23, 2013 ( PDF )(JavaScript required) .
↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ data sheet Tin (II) iodide, powder, 99.999% trace metals basis from Sigma-Aldrich , accessed on July 23, 2013 ( PDF ).
^ ^A ^b ^c Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists . Springer DE, 1997, ISBN 3-540-60035-3 , pp. 740 ( limited preview in Google Book search).
↑ Andrea Krüger: Structural chemical investigations of new binary and ternary ... Herbert Utz Verlag, 1999, ISBN 3-89675-472-6 , p. 25 ( limited preview in Google Book search).
↑ Anil Kumar De: A Text Book of Inorganic Chemistry . New Age International, 2007, ISBN 81-224-1384-6 , pp. 377 ( limited preview in Google Book search).
^ AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 965.

[Alfa-1] Data sheet Tin (II) iodide, ultra dry, 99.999% (metals basis) from AlfaAesar, accessed on July 23, 2013 ( PDF )(JavaScript required) .

[Sigma-2] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ data sheet Tin (II) iodide, powder, 99.999% trace metals basis from Sigma-Aldrich , accessed on July 23, 2013 ( PDF ).

[Lax-3] A ^b ^c Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists . Springer DE, 1997, ISBN 3-540-60035-3 , pp. 740 ( limited preview in Google Book search).

[Andrea_Krüger-4] Andrea Krüger: Structural chemical investigations of new binary and ternary ... Herbert Utz Verlag, 1999, ISBN 3-89675-472-6 , p. 25 ( limited preview in Google Book search).

[Anil_Kumar_De-5] Anil Kumar De: A Text Book of Inorganic Chemistry . New Age International, 2007, ISBN 81-224-1384-6 , pp. 377 ( limited preview in Google Book search).

[Arnold_F._Holleman,_Egon_Wiberg,_Nils_Wiberg-6] AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 965.