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Merck

708860

Potassium hydride

in paraffin

Synonym(s):

Potassium monohydride

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5 G

CZK 2,610.00

25 G

CZK 8,020.00

CZK 2,610.00


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About This Item

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

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Product Name

Potassium hydride, in paraffin

InChI key

NTTOTNSKUYCDAV-UHFFFAOYSA-N

InChI

1S/K.H

SMILES string

[K]

form

solid

reaction suitability

reagent type: reductant

Quality Level

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21581360377P1767
Quality Level

100

Quality Level

200

Quality Level

200

Quality Level

200

reaction suitability

reagent type: reductant

reaction suitability

reagent type: reductant

reaction suitability

-

reaction suitability

-

form

solid

form

slurry

form

solid

form

pellets

Application

Potassium hydride in paraffin can be used as a base in:
  • Wittig reaction of various aldehydes with high Z selectivity.[1]
  • Williamson ether synthesis to prepare substituted ethers from alcohols.[2]
  • Polymerization of ethylene oxide to yield polyethylene glycols.[3]

General description

Melting point of paraffin used to prepare mixture is ~55-65 °C
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.[4]

pictograms

FlameCorrosion

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

WGK 3

flash_point_f

No data available

flash_point_c

No data available


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Certificates of Analysis (COA)

Lot/Batch Number

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Potassium hydride in paraffin: a useful base for Williamson ether synthesis
Huang H, et al.
Tetrahedron Letters, 51(27), 3545-3546 (2010)
Synthesis of heterobifunctional polyethylene glycols: Polymerization from functional initiators
Vojkovsky T, et al.
Polymer, 105(27), 72-78 (2016)
Potassium Hydride
Encyclopedia of Reagents for Organic Synthesis, Second Edition (2007)
Potassium hydride in paraffin: A useful base for organic synthesis.
Taber DF and Nelson CG
The Journal of Organic Chemistry, 71(23), 8973-8974 (2006)
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

Questions

  1. Qual è la percentuale in peso di solo KH nella miscela KH/paraffina?

    1 answer
    1. There is no specification for KH amount, but the concentration is reported on the batch-specific CoA. For recent lots, the concentration ranges from approximately 35% to 45%.

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