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P5958

Sigma-Aldrich

Kaliumhydroxid

BioXtra, ≥85% KOH basis

Synonym(e):

Aetzkali

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€ 53,40
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€ 86,80
1 KG
€ 145,00

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Voraussichtliches Versanddatum29. Mai 2025

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250 G
€ 53,40
500 G
€ 86,80
1 KG
€ 145,00

About This Item

Lineare Formel:
KOH
CAS-Nummer:
1310-58-3
Molekulargewicht:
56.11
EG-Nummer:
215-181-3
MDL-Nummer:
MFCD00003553
UNSPSC-Code:
12352106
eCl@ss:
38100303
PubChem Substanz-ID:
329820239
NACRES:
NA.21

€ 53,40

Voraussichtliches Versanddatum29. Mai 2025

Bulk-Bestellung anfordern

Qualität

for analytical purposes

Dampfdruck

1 mmHg ( 719 °C)

Produktlinie

BioXtra

Assay

≥85% KOH basis

Form

pellets

Verunreinigungen

≤0.0005% Phosphorus (P)
≤0.1% Insoluble matter
≤2.0% K2CO3

pH-Wert

~13.5 (25 °C, 5.6 g/L)

mp (Schmelzpunkt)

361 °C (lit.)

Löslichkeit

H2O: 1 M, clear, colorless

Anionenspuren

chloride (Cl-): ≤0.01%
sulfate (SO42-): ≤0.003%

Kationenspuren

Al: ≤0.0005%
Ca: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
Mg: ≤0.0005%
NH4+: ≤0.05%
Na: ≤0.05%
Pb: ≤0.001%
Zn: ≤0.0005%

SMILES String

[OH-].[K+]

InChI

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

InChIKey

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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Allgemeine Beschreibung

Potassium hydroxide is an inorganic compound commonly known as caustic potash. It is a strong alkali, readily reacts with acids. It can be used in various reactions such as nucleophilic substitution, hydrolysis, and addition reactions. Sometimes it can also be used as a catalyst for aldol-type reactions.

Anwendung

Potassium hydroxide can be used to adjust the pH of the solution.
It can also be used:
  • As a catalyst in the alkynylation of heteroaromatic N-oxides to synthesize corresponding C2-alkynylheterocycles.
  • As a superbase medium with dimethyl sulfoxide (KOH/DMSO medium) for the synthesis of cross-coupling products under transition metal-free conditions from reactions between aryl halides and various sulfur, oxygen and nitrogen-based nucleophiles.
  • In the synthesis and thermodynamic study of Na-based zeolites.

Piktogramme

CorrosionExclamation mark
GHS05,GHS07

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Lagerklassenschlüssel

8A - Combustible corrosive hazardous materials

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
0000413966
0000413966
SLCQ2344
SLCQ2344
0000269562

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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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