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P5958

Sigma-Aldrich

Kaliumhydroxid

BioXtra, ≥85% KOH basis

Synonym(e):

Aetzkali

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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

Dampfdruck

1 mmHg ( 719 °C)

Qualitätsniveau

200

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

Analysenzertifikate (COA)

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