Lithium selenide

Crystal structure
__ Li +      __ Se 2−
Crystal system	cubic
Space group	Fm 3 m (No. 225)
General
Surname	Lithium selenide
other names	Dilithium selenide
Ratio formula	Li 2 Se
Brief description	red-brown solid
External identifiers / databases
CAS number 12136-60-6 EC number 235-230-2 ECHA InfoCard 100.032.015 PubChem 82935 ChemSpider 74834 Wikidata Q15726036
properties
Molar mass	92.84 g mol −1
Physical state	firmly
density	2.91 g cm −3
solubility	soluble in water
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 261-301-331-373-410 P: 231 + 232-261-273-301 + 310-311-422
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Lithium selenide , Li ₂ Se, is a chemical compound of lithium from the selenide group .

Extraction

Lithium selenide can be obtained by reacting selenium with lithium . The reaction takes place in liquid ammonia . After the ammonia has evaporated, the red-brown lithium selenide remains.

properties

Dilithium selenide crystallizes in a cubic crystal system . Like the other lithium chalcogenides, it has the space group Fm 3 m (space group no. 225) .

toxicology

If taken orally or inhaled, lithium selenide is toxic. With prolonged or repeated exposure, it causes damage to organs.

Individual evidence

1. ↑ ^{a b c d} Jacek Młochowski, Ludwik Syper: Lithium Selenide . John Wiley & Sons, Ltd, April 2001.
2. ↑ ^{a b} data sheet lithium selenide from Sigma-Aldrich , accessed on June 29, 2019 ( PDF ).
3. ^ Li ₂ Se . Materials Project, doi : 10.17188 / 1199025 .
4. ↑ InfoCard for Dilithium selenide from the European Chemicals Agency (ECHA), accessed on June 29, 2019.