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
306568
Hidróxido de potasio
semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)
Sinónimos:
Potasa cáustica
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163,00 €
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About This Item
163,00 €
Productos recomendados
grado
semiconductor grade
Nivel de calidad
presión de vapor
1 mmHg ( 719 °C)
Ensayo
99.99% trace metals basis (Purity excludes sodium content.)
Formulario
pellets
composición
KOH, >85.0%
impurezas
15% water
pH
~13.5 (25 °C, 5.6 g/L)
mp
361 °C (lit.)
trazas de catión
Na: ≤500.0 ppm
cadena SMILES
[OH-].[K+]
InChI
1S/K.H2O/h;1H2/q+1;/p-1
Clave InChI
KWYUFKZDYYNOTN-UHFFFAOYSA-M
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Categorías relacionadas
Descripción general
Aplicación
- As a base in the synthesis of imines, starting from amines and alcohols.
- As a base in β-alkylation of secondary alcohols with primary alcohols without any transition metal catalyst.
- In combination with aluminium for pinacolization of aromatic aldehydes and reduction of hindered ketones.
- As a precipitating agent in the synthesis of MnZn ferrites nanoparticles (Mn0.8Zn0.2Fe2O4 ferrite nanoparticles) by modified hydrothermal method.
Palabra de señalización
Danger
Frases de peligro
Consejos de prudencia
Clasificaciones de peligro
Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
Código de clase de almacenamiento
8A - Combustible corrosive hazardous materials
Clase de riesgo para el agua (WGK)
WGK 1
Punto de inflamabilidad (°F)
Not applicable
Punto de inflamabilidad (°C)
Not applicable
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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