Potassium selenocyanate

Structural formula
General
Surname	Potassium selenocyanate
other names	Selenocyanic acid potassium; Selenium cyanide potassium;
Molecular formula	KSeCN
Brief description	white to beige solid
External identifiers / databases
EC number	222-320-1
ECHA InfoCard	100.020.292
PubChem	4178000
Wikidata	Q10369545
properties
Molar mass	144.08 g mol −1
Physical state	firmly
density	2.35 g cm −3
Melting point	147 ° C
solubility	soluble in water
safety instructions
H and P phrases	H: 300-331-373-410
	P: 261-264-273-301 + 310-311-501
Toxicological data	10 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Potassium selenocyanate is an inorganic chemical compound of potassium from the group of selenocyanates .

Extraction and presentation

Potassium selenocyanate can be obtained by reacting potassium cyanide with selenium .

{\ displaystyle \ mathrm {KCN + Se \ longrightarrow KSeCN}}

properties

Potassium selenocyanate is a white to beige, strong-smelling solid that is soluble in water. The compound has a monoclinic crystal structure with the space group P 2 ₁ / c (space group no. 14) . Template: room group / 14

use

Potassium selenocyanate can be used to make selenoisocyanates. It is also used as an intermediate in the production of selenium and as a versatile reagent in cyclocondensations and heterocyclization reactions.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ data sheet Potassium selenocyanate from Sigma-Aldrich , accessed on May 24, 2017 ( PDF ).
↑ ^a ^b ^c data sheet Potassium selenocyanate from AlfaAesar, accessed on May 24, 2015 ( PDF )(JavaScript required) .
↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entries on selenium compounds with the exception of cadmium sulphoselenide and those specified elsewhere in this Annex and salts of hydrogen cyanide with the exception of complex cyanides such as ferrocyanides, ferricyanides and mercuric oxycyanide and those specified elsewhere in this Annex in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 18, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .

^ C. Paulmier: Selenium Reagents & Intermediates in Organic Synthesis . Elsevier, 2013, ISBN 978-1-4832-8640-2 , pp. 29 ( limited preview in Google Book search).

↑ Duane D. Swank, Roger D. Willett: The Crystal Structure of Potassium Selenocyanate. In: Inorganic Chemistry . 4, 1965, p. 499, doi : 10.1021 / ic50026a013 .

↑ Thomas Wirth: Organoselenium Chemistry Synthesis and Reactions . John Wiley & Sons, 2012, ISBN 3-527-64195-5 , pp. 40-IA1 ( limited preview in Google Book search).

↑ Georg Frerichs, Georg Arends, Heinrich Zörnig: Hager's handbook of pharmaceutical practice for pharmacists, drug manufacturers, druggists, doctors and medical officials . Springer-Verlag, 2013, ISBN 978-3-642-90729-6 , pp. 686 ( limited preview in Google Book Search).

[Sigma-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ data sheet Potassium selenocyanate from Sigma-Aldrich , accessed on May 24, 2017 ( PDF ).

[Alfa-2] ta sheet Potassium selenocyanate from AlfaAesar, accessed on May 24, 2015 ( PDF )(JavaScript required) .

[CLP_100.240.771-3] Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entries on selenium compounds with the exception of cadmium sulphoselenide and those specified elsewhere in this Annex and salts of hydrogen cyanide with the exception of complex cyanides such as ferrocyanides, ferricyanides and mercuric oxycyanide and those specified elsewhere in this Annex in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 18, 2017. Manufacturers or distributors can expand the harmonized classification and labeling .

[C._Paulmier-4] C. Paulmier: Selenium Reagents & Intermediates in Organic Synthesis . Elsevier, 2013, ISBN 978-1-4832-8640-2 , pp. 29 ( limited preview in Google Book search).

[DOI10.1021/ic50026a013-5] Duane D. Swank, Roger D. Willett: The Crystal Structure of Potassium Selenocyanate. In: Inorganic Chemistry . 4, 1965, p. 499, doi : 10.1021 / ic50026a013 .

[Thomas_Wirth-6] Thomas Wirth: Organoselenium Chemistry Synthesis and Reactions . John Wiley & Sons, 2012, ISBN 3-527-64195-5 , pp. 40-IA1 ( limited preview in Google Book search).

[Georg_Frerichs,_Georg_Arends,_Heinrich_Zörnig-7] Georg Frerichs, Georg Arends, Heinrich Zörnig: Hager's handbook of pharmaceutical practice for pharmacists, drug manufacturers, druggists, doctors and medical officials . Springer-Verlag, 2013, ISBN 978-3-642-90729-6 , pp. 686 ( limited preview in Google Book Search).