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720143

Sigma-Aldrich

Potassium hydroxide on alumina

Synonym(s):

KOH on alumina

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About This Item

Empirical Formula (Hill Notation):
HKO
Molecular Weight:
56.11
MDL number:
MFCD00003553
UNSPSC Code:
12352301
PubChem Substance ID:
329763703
NACRES:
NA.22

form

powder

mp

>300 °C

SMILES string

[OH-].[K+]

InChI

1S/K.H2O/h;1H2/q+1;/p-1

InChI key

KWYUFKZDYYNOTN-UHFFFAOYSA-M

Application

Potassium hydroxide on alumina (KOH/AL2O3) can be employed as a base catalyst:
  • For the dehydrogenation of cyclic hydrocarbons (cycloolefins, cycloparaffins, and alkyl aromatics).[1]
  • To prepare pyridazine derivatives from 1,2-dicarbonyls, and hydrazine hydrate under microwave (MW) irradiation.[2]
  • In the total synthesis of natural product (-)-varitriol and (-)-3′-epi-varitriol (an isomer of (-)-varitriol) as potent antitumor agents.[3]

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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.

PDSCL

Deleterious substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

720143-VAR:
720143-25G:4548173336916
720143-100G:4548173336909
720143-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCJ4363
MKBX4998V
MKBD2423V
MKBD2423

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Potassium hydroxide impregnated Alumina (KOH-Alumina) as a recyclable catalyst for the solvent-free multicomponent synthesis of highly functionalized substituted pyridazines and/or substituted pyridazin-3 (2H)-ones under microwave irradiation
Mecadon H and Myrboh B
ISRN Organic Chemistry, 2011(1), 131-136 (2011)
Gas phase base-catalyzed dehydrogenations of cyclic hydrocarbons over a KOH/Al2O3 catalyst
Neumann R and Sasson Y
J. Mol. Catal., 35(1), 131-136 (1986)
The synthesis of (-)-varitriol and (-)-3?-epi-varitriol via a Ramberg-Backlund route
McAllister GD, et al.
Tetrahedron, 63(49), 12123-12130 (2007)
Mizuki Takemoto et al.
PloS one, 10(6), e0131094-e0131094 (2015-06-27)
Channelrhodopsin (ChR) is a light-gated cation channel that responds to blue light. Since ChR can be readily expressed in specific neurons to precisely control their activities by light, it has become a powerful tool in neuroscience. Although the recently solved
Ashok R Patel et al.
Journal of agricultural and food chemistry, 63(19), 4862-4869 (2015-05-02)
The aim of this study was to use a detailed rheological characterization to gain new insights into the gelation behavior of natural waxes. To make a comprehensive case, six natural waxes (differing in the relative proportion of chemical components: hydrocarbons
View All Related Papers

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