708860
Potassium hydride
in paraffin
Synonym(s):
Potassium monohydride
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About This Item
Linear Formula:
KH
CAS Number:
Molecular Weight:
40.11
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
form
solid
reaction suitability
reagent type: reductant
SMILES string
[K]
InChI
1S/K.H
InChI key
NTTOTNSKUYCDAV-UHFFFAOYSA-N
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General description
Potassium hydride is a strong base and hydride donor to Lewis acids. It is generally employed in organic reactions like deprotonation, rearrangement, and elimination reactions. It is also used as a reducing agent to reduce hindered boranes and borates to substituted borohydrides.
Application
Potassium hydride in paraffin can be used as a base in:
- Wittig reaction of various aldehydes with high Z selectivity.
- Williamson ether synthesis to prepare substituted ethers from alcohols.
- Polymerization of ethylene oxide to yield polyethylene glycols.
Physical properties
Melting point of paraffin used to prepare mixture is ~55-65 °C
signalword
Danger
hcodes
Hazard Classifications
Skin Corr. 1B - Water-react 1
supp_hazards
Storage Class
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk_germany
WGK 3
flash_point_f
No data available
flash_point_c
No data available
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