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484016

Sigma-Aldrich

Hidróxido de potássio

reagent grade, 90%, flakes

Sinônimo(s):

Potassa cáustica

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About This Item

Fórmula linear:
KOH
Número CAS:
Peso molecular:
56.11
Número CE:
Número MDL:
Código UNSPSC:
12352106
eCl@ss:
38100303
ID de substância PubChem:
NACRES:
NA.21

grau

reagent grade

Agency

suitable for EPA 1613
suitable for SM 5210

pressão de vapor

1 mmHg ( 719 °C)

Ensaio

90%

forma

flakes

pH

~13.5 (25 °C, 5.6 g/L)

pf

361 °C (lit.)

solubilidade

water: soluble 1120 g/L

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 (KOH) is a hygroscopic, water soluble base synthesized by the electrolysis of potassium chloride solution. It is the raw material for the synthesis of many potassium compounds. KOH reacts with CO2 to form potassium carbonate. This property can be utilized to absorb CO2. It participates as catalyst in aldol condensation reactions. KOH anisotropic etching of silicon is used for the fabrication of sub-micron silicon nitride waveguides using conventional contact lithography. Pulverized KOH may be used for the preparation of chalcones.

Aplicação

Potassium hydroxide (KOH) was used in the following processes:
  • Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC.
  • Preparation of buffer for use in the Investigation of seed fatty acid (FA) composition, protein, oil and sugar content.
  • Stable isotopic profiling study of Caenorhabditis elegans.
Potassium hydroxide may be employed as an etchant for the laser modified glass. In combination with tellurium powder, it mediates the quantitative pinacolization of aromatic carbonyl compounds.

Pictogramas

CorrosionExclamation mark

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

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

Código de classe de armazenamento

8B - Non-combustible corrosive hazardous materials

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Stable isotopic profiling has long permitted sensitive investigations of the metabolic consequences of genetic mutations and/or pharmacologic therapies in cellular and mammalian models. Here, we describe detailed methods to perform stable isotopic profiling of intermediary metabolism and metabolic flux in
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We demonstrate a novel technique to fabricate sub-micron silicon nitride waveguides using conventional contact lithography with MEMS-grade photomasks. Potassium hydroxide anisotropic etching of silicon facilitates line reduction and roughness smoothing and is key to the technique. The fabricated waveguides is
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