Skip to Content
Merck
All Photos(2)

Documents

708860

Sigma-Aldrich

Potassium hydride

in paraffin

Synonym(s):

Potassium monohydride

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
KH
CAS Number:
7693-26-7
Molecular Weight:
40.11
EC Number:
231-704-8
MDL number:
MFCD00011357
UNSPSC Code:
12352302
PubChem Substance ID:
329762830
NACRES:
NA.22

form

solid

reaction suitability

reagent type: reductant

SMILES string

[K]

InChI

1S/K.H

InChI key

NTTOTNSKUYCDAV-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

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

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H260,H314

Hazard Classifications

Skin Corr. 1B - Water-react 1

Supplementary Hazards

EUH014

Storage Class Code

4.3 - Hazardous materials which set free flammable gases upon contact with water

WGK

WGK 3

Flash Point(F)

No data available

Flash Point(C)

No data available

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Synthesis of heterobifunctional polyethylene glycols: Polymerization from functional initiators
Vojkovsky T, et al.
Polymer, 105(27), 72-78 (2016)
Potassium hydride in paraffin: a useful base for Williamson ether synthesis
Huang H, et al.
Tetrahedron Letters, 51(27), 3545-3546 (2010)
Jordan E Bisanz et al.
Applied and environmental microbiology, 81(15), 4965-4975 (2015-05-17)
The nutritional status of pregnant women is vital for healthy outcomes and is a concern for a large proportion of the world's population. The role of the microbiota in pregnancy and nutrition is a promising new area of study with
Stefan D Anker et al.
European journal of heart failure, 17(10), 1050-1056 (2015-05-27)
Hyperkalaemia in heart failure patients limits use of cardioprotective renin-angiotensin-aldosterone system inhibitors (RAASi). Sodium zirconium cyclosilicate (ZS-9) is a selective potassium ion trap, whose mechanism of action may allow for potassium binding in the upper gastrointestinal tract as early as
David K Packham et al.
The New England journal of medicine, 372(3), 222-231 (2014-11-22)
Hyperkalemia (serum potassium level, >5.0 mmol per liter) is associated with increased mortality among patients with heart failure, chronic kidney disease, or diabetes. We investigated whether sodium zirconium cyclosilicate (ZS-9), a novel selective cation exchanger, could lower serum potassium levels
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service