Dimethyl selenide

Structural formula
General
Surname	Dimethyl selenide
other names	Methyl selenide
Molecular formula	C 2 H 6 Se
Brief description	colorless smelly liquid
External identifiers / databases
EC number	209-807-4
ECHA InfoCard	100.008.918
PubChem	11648
Wikidata	Q22668715
properties
Molar mass	109.03 g mol −1
Physical state	liquid
density	1.408 g cm −3 (20 ° C)
Melting point	−87.2 ° C
boiling point	52.8 ° C at 1013 hPa
solubility	soluble in ethanol ; practically insoluble in water;
safety instructions
H and P phrases	H: 301-331-373-410
	P: 261-273-301 + 310-311-501
Toxicological data	2,100 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 .

Dimethyl selenide with the constitutional formula Se (CH ₃ ) ₂ is an organic chemical compound from the group of organoselenium compounds.

Occurrence

Dimethyl selenide is formed from inorganic selenium compounds by plants and fungi (especially Penicillium brevicaule ). The compound is also formed in humans when exposed to high levels of selenium (when its methylation is no longer sufficient) and is released via the lungs.

Extraction and presentation

Dimethyl selenide can be obtained by reacting metal selenides with methyl sulfates.

{\ displaystyle \ mathrm {Na_ {2} Se + 2 \ CH_ {3} OSO_ {3} Na \ longrightarrow (CH_ {3}) _ {2} Se + 2 \ Na_ {2} SO_ {4}}}

properties

Dimethyl selenide is a clear, colorless, smelly liquid that is soluble in ethanol.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h Data sheet Dimethyl selenide, ≥99.0% (GC) from Sigma-Aldrich , accessed on December 31, 2015 ( PDF ).
↑ Shmuel Yannai: Dictionary of Food Compounds with CD-ROM, Second Edition . CRC Press, 2012, ISBN 978-1-4200-8352-1 , pp. 555 ( limited preview in Google Book search).
^ ^A ^b William M. Haynes: CRC Handbook of Chemistry and Physics, 96th Edition . CRC Press, 2015, ISBN 978-1-4822-6097-7 , pp. 222 ( limited preview in Google Book search).
↑ U. Karlson, WT Frankenberger, WF Spencer: Physicochemical properties of dimethyl selenide and dimethyl diselenide. In: Journal of Chemical & Engineering Data. 39, 1994, p. 608, doi : 10.1021 / je00015a049 .
^ Joachim W. Kadereit, Christian Körner, Benedikt Kost, Uwe Sonnewald: Strasburger - Textbook of Plant Sciences . Springer-Verlag, 2014, ISBN 978-3-642-54435-4 , pp. 344 ( limited preview in Google Book search).
↑ The nitrogen turnover / nitrogen metabolism . Springer-Verlag, 2013, ISBN 978-3-642-94733-9 , pp. 882 ( limited preview in Google Book search).
↑ Rainer Macholz, Hans-Jochen Lewerenz: Food toxicology . Springer-Verlag, 2013, ISBN 978-3-642-73269-0 , pp. 289 ( limited preview in Google Book search).
↑ J. Stein, K.-W. Jauch: Practical Guide to Clinical Nutrition and Infusion Therapy . Springer-Verlag, 2013, ISBN 978-3-642-55896-2 , pp. 440 ( limited preview in Google Book Search).
↑ Irene Rosenfeld, Orville A. Beath: Selenium Geobotany, Biochemistry, Toxicity, and Nutrition . Academic Press, 2013, ISBN 978-1-4832-7590-1 , pp. 307 ( limited preview in Google Book search).

[Sigma-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h Data sheet Dimethyl selenide, ≥99.0% (GC) from Sigma-Aldrich , accessed on December 31, 2015 ( PDF ).

[Shmuel_Yannai-2] Shmuel Yannai: Dictionary of Food Compounds with CD-ROM, Second Edition . CRC Press, 2012, ISBN 978-1-4200-8352-1 , pp. 555 ( limited preview in Google Book search).

[William_M._Haynes-3] A ^b William M. Haynes: CRC Handbook of Chemistry and Physics, 96th Edition . CRC Press, 2015, ISBN 978-1-4822-6097-7 , pp. 222 ( limited preview in Google Book search).

[DOI10.1021/je00015a049-4] U. Karlson, WT Frankenberger, WF Spencer: Physicochemical properties of dimethyl selenide and dimethyl diselenide. In: Journal of Chemical & Engineering Data. 39, 1994, p. 608, doi : 10.1021 / je00015a049 .

[Joachim_W._Kadereit,_Christian_Körner,_Benedikt_Kost,_Uwe_Sonnewald-5] Joachim W. Kadereit, Christian Körner, Benedikt Kost, Uwe Sonnewald: Strasburger - Textbook of Plant Sciences . Springer-Verlag, 2014, ISBN 978-3-642-54435-4 , pp. 344 ( limited preview in Google Book search).

[6] The nitrogen turnover / nitrogen metabolism . Springer-Verlag, 2013, ISBN 978-3-642-94733-9 , pp. 882 ( limited preview in Google Book search).

[Rainer_Macholz,_Hans-Jochen_Lewerenz-7] Rainer Macholz, Hans-Jochen Lewerenz: Food toxicology . Springer-Verlag, 2013, ISBN 978-3-642-73269-0 , pp. 289 ( limited preview in Google Book search).

[J._Stein,_K.-W._Jauch-8] J. Stein, K.-W. Jauch: Practical Guide to Clinical Nutrition and Infusion Therapy . Springer-Verlag, 2013, ISBN 978-3-642-55896-2 , pp. 440 ( limited preview in Google Book Search).

[Irene_Rosenfeld,_Orville_A._Beath-9] Irene Rosenfeld, Orville A. Beath: Selenium Geobotany, Biochemistry, Toxicity, and Nutrition . Academic Press, 2013, ISBN 978-1-4832-7590-1 , pp. 307 ( limited preview in Google Book search).