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P5958

Sigma-Aldrich

Hidróxido de potássio

BioXtra, ≥85% KOH basis

Sinônimo(s):

Potassa cáustica

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About This Item

Fórmula linear:
KOH
Número CAS:
1310-58-3
Peso molecular:
56.11
Número CE:
215-181-3
Número MDL:
MFCD00003553
Código UNSPSC:
12352106
eCl@ss:
38100303
ID de substância PubChem:
329820239
NACRES:
NA.21

pressão de vapor

1 mmHg ( 719 °C)

Nível de qualidade

200

linha de produto

BioXtra

Ensaio

≥85% KOH basis

forma

pellets

Impurezas

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

pH

~13.5 (25 °C, 5.6 g/L)

pf

361 °C (lit.)

solubilidade

H2O: 1 M, clear, colorless

traços de ânion

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

traços de cátion

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%

cadeia de caracteres SMILES

[OH-].[K+]

InChI

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

chave InChI

KWYUFKZDYYNOTN-UHFFFAOYSA-M

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Descrição geral

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.

Aplicação

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.

Pictogramas

CorrosionExclamation mark
GHS05,GHS07

Palavra indicadora

Danger

Frases de perigo

H290,H302,H314

Classificações de perigo

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

Código de classe de armazenamento

8A - Combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Certificados de análise (COA)

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