Potassium hydride

Potassium hydride
	; Potassium cation, K+ Hydrogen anion, H−
Names
	IUPAC name Potassium hydride
Identifiers
CAS Number	7693-26-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	74121 ;
ECHA InfoCard	100.028.823
EC Number	232-151-5;
PubChem CID	82127;
CompTox Dashboard (EPA)	DTXSID10894770 ;
	InChI InChI=1S/K.H/q+1;-1 Key: OCFVSFVLVRNXFJ-UHFFFAOYSA-N ; InChI=1S/K.H/q+1;-1 Key: OCFVSFVLVRNXFJ-UHFFFAOYAO; Key: OCFVSFVLVRNXFJ-UHFFFAOYSA-N;
	SMILES [H-].[K+];
Properties
Chemical formula	KH
Molar mass	40.1062 g/mol
Appearance	white to gray crystalline powder
Density	1.43 g/cm3
Melting point	decomposes at ~400 °C
Solubility in water	reacts
Solubility	insoluble in benzene, diethyl ether, carbon disulfide
Structure
Crystal structure	cubic, cF8
Space group	Fm3m, No. 225
Thermochemistry
Heat capacity (C)	37.91 J/(mol⋅K)
Std enthalpy of; formation (ΔfH⦵298)	-57.82 kJ/mol
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	corrosive, pyrophoric, reacts violently with acids and water
NFPA 704 (fire diamond)	3 3 2 W
Related compounds
Other cations	Lithium hydride; Sodium hydride; Rubidium hydride; Caesium hydride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Potassium hydride, KH, is the inorganic compound of potassium and hydrogen. It is an alkali metal hydride. It is a white solid, although commercial samples appear gray. It is a powerful superbase that is useful in organic synthesis. It is sold commercially as a slurry (~35%) in mineral oil or sometimes paraffin wax to facilitate dispensing.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.