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Merck

215813

Potassium hydride

greener alternative

30 wt % dispersion in mineral oil

Synonym(s):

Potassium monohydride

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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:
Form:
slurry
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InChI key

NTTOTNSKUYCDAV-UHFFFAOYSA-N

InChI

1S/K.H

SMILES string

[K]

form

slurry

reaction suitability

reagent type: reductant

greener alternative product characteristics

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concentration

30 wt % dispersion in mineral oil

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Quality Level

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General description

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Application

Potassium hydride can be used for following applications:
  • Deprotonation: As a strong base, potassium hydride effectively deprotonates hydroxyl groups of monomers, generating alkoxide ions. These ions facilitate the ring-opening polymerization of monosubstituted oxiranes.
  • Strong Base in Williamson Ether Synthesis: It is employed to generate alkoxides from alcohols, which subsequently react with alkyl halides to form ethers.
  • Reducing Agent: Potassium hydride can reduce hindered boranes and borates to trialkyl borohydrides. It also facilitates the reduction of ketones and alkyl halides.
  • Alkylation and Enolate Formation: It aids in the formation of enolates from ketones, which can be utilized in one-pot alkylation-cyclization reactions.

pictograms

FlameCorrosion

signalword

Danger

hcodes

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

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1B - Water-react. 1


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 3: Spontaneously combustible substances and water- reactive materials + Metal hydrides + Hazardous rank II + 2nd spontaneously combustible materials and water reactive materials

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

215813-VAR: + 215813-BULK: + 215813-300G:4548173931784 + 215813-75G:4548173931791

jan


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Patnaik P et al.
A Comprehensive Guide to the Hazardous Properties of Chemical Substances null
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
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
Mayumi Tada et al.
The European journal of neuroscience, 39(11), 1720-1728 (2014-01-11)
Calcium imaging of individual neurons is widely used for monitoring their activity in vitro and in vivo. Synthetic fluorescent calcium indicator dyes are commonly used, but the resulting calcium signals sometimes suffer from a low signal-to-noise ratio (SNR). Therefore, it

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