Copper (I) thiocyanate

Crystal structure
General
Surname	Copper (I) thiocyanate
other names	Copper rhodanide; Copper thiocyanate;
Ratio formula	CuSCN
Brief description	whitish odorless solid
External identifiers / databases
EC number	214-183-1
ECHA InfoCard	100,012,894
PubChem	11029823
Wikidata	Q4395668
properties
Molar mass	121.62 g mol −1
Physical state	firmly
density	2.84 g cm −3
solubility	practically insoluble in water and ethanol; soluble in ammonium hydroxide and ether;
safety instructions
GHS hazard labeling from Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution
H and P phrases	H: 410
	EUH: 032
	P: 273-391-501
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Copper (I) thiocyanate is an inorganic chemical compound of copper from the group of thiocyanates .

Extraction and presentation

Copper (I) thiocyanate can be obtained by reacting copper sulfate , copper powder and potassium thiocyanate at 70 ° C in eutectic solvents (DES).

{\ displaystyle \ mathrm {CuSO_ {4} + Cu + \ 2 \ KSCN \ longrightarrow \ 2 \ CuSCN \ downarrow + \ K_ {2} SO_ {4}}}

The compound can also be obtained by reacting alkali metal thiocyanates with copper (I) chloride at 80-90 ° C. or with copper (II) sulfate solutions in the presence of sulfites .

{\ displaystyle \ mathrm {CuCl + KSCN \ longrightarrow CuSCN \ downarrow + \ KCl}}

properties

Copper (I) thiocyanate is a whitish odorless solid that is practically insoluble in water. It decomposes when heated above 1084 ° C. It has an orthorhombic crystal structure with the space group Pbca (space group no. 61) . However, another modification is also known. The compound is a semiconductor with a band gap of around 3.6 eV. Template: room group / 61

use

Copper (I) thiocyanate is used as a flame retardant . It is a good inorganic pigment and is used as an antifouling paint to protect the underwater surfaces of ships. It is also used for the production of industrial chemicals, pharmaceuticals and other chemicals.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry on copper thiocyanate in the GESTIS substance database of the IFA , accessed on August 11, 2018(JavaScript required) .
↑ ^a ^b ^c data sheet Copper (I) thiocyanate, 96% min from AlfaAesar, accessed on August 11, 2018 ( PDF )(JavaScript required) .
↑ Entry on copper (I) thiocyanate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 31, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Shiqi Lv, Lin Sui, Ying Zeng, Yun Cheng, Chunsheng Liu, Genxiang Luo: Synthesis of CuSCN particles in deep eutectic solvents and its application in the thermal decomposition of ammonium perchlorate. In: Particulate Science and Technology. 34, 2015, p. 407, doi : 10.1080 / 02726351.2015.1068897 .
^ H. Wayne Richardson: Handbook of Copper Compounds and Applications . CRC Press, 1997, ISBN 978-0-8247-8998-5 , pp. 86 ( limited preview in Google Book search).
↑ Kabešová, M & Dunaj-jurčo, M & Serator, M & Gažo, J & Garaj, J. (1976). The crystal structure of copper (I) thiocyanate and its relation to the crystal structure of copper (II) diammine dithiocyanate complex. Inorganica Chimica Acta. 17. 161-165. doi : 10.1016 / S0020-1693 (00) 81976-3 .
↑ Wijeyasinghe, Nilushi & Anthopoulos, Thomas. (2015). TOPICAL REVIEW: Copper (I) thiocyanate (CuSCN) as a hole-transport material for large-area opto / electronics. Semiconductor Science and Technology. 30. doi : 10.1088 / 0268-1242 / 30/10/104002 .
↑ Blessing N. Ezealigo, Assumpta C. Nwanya, Aline Simo, R. Bucher, Rose U. Osuji, Malik Maaza, MV Reddy, Fabian I. Ezema: A study on solution deposited CuSCN thin films: Structural, electrochemical, optical properties. In: Arabian Journal of Chemistry. 2017, doi : 10.1016 / j.arabjc.2017.04.013 .

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry on copper thiocyanate in the GESTIS substance database of the IFA , accessed on August 11, 2018(JavaScript required) .

[Alfa-2] ta sheet Copper (I) thiocyanate, 96% min from AlfaAesar, accessed on August 11, 2018 ( PDF )(JavaScript required) .

[CLP_100.012.894-3] Entry on copper (I) thiocyanate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 31, 2018. Manufacturers or distributors can expand the harmonized classification and labeling .

[DOI10.1080/02726351.2015.1068897-4] Shiqi Lv, Lin Sui, Ying Zeng, Yun Cheng, Chunsheng Liu, Genxiang Luo: Synthesis of CuSCN particles in deep eutectic solvents and its application in the thermal decomposition of ammonium perchlorate. In: Particulate Science and Technology. 34, 2015, p. 407, doi : 10.1080 / 02726351.2015.1068897 .

[H._Wayne_Richardson-5] H. Wayne Richardson: Handbook of Copper Compounds and Applications . CRC Press, 1997, ISBN 978-0-8247-8998-5 , pp. 86 ( limited preview in Google Book search).

[6] Kabešová, M & Dunaj-jurčo, M & Serator, M & Gažo, J & Garaj, J. (1976). The crystal structure of copper (I) thiocyanate and its relation to the crystal structure of copper (II) diammine dithiocyanate complex. Inorganica Chimica Acta. 17. 161-165. doi : 10.1016 / S0020-1693 (00) 81976-3 .

[7] Wijeyasinghe, Nilushi & Anthopoulos, Thomas. (2015). TOPICAL REVIEW: Copper (I) thiocyanate (CuSCN) as a hole-transport material for large-area opto / electronics. Semiconductor Science and Technology. 30. doi : 10.1088 / 0268-1242 / 30/10/104002 .

[DOI10.1016/j.arabjc.2017.04.013-8] Blessing N. Ezealigo, Assumpta C. Nwanya, Aline Simo, R. Bucher, Rose U. Osuji, Malik Maaza, MV Reddy, Fabian I. Ezema: A study on solution deposited CuSCN thin films: Structural, electrochemical, optical properties. In: Arabian Journal of Chemistry. 2017, doi : 10.1016 / j.arabjc.2017.04.013 .