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
306568
Hidróxido de potássio
semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium content.)
Sinônimo(s):
Potassa cáustica
About This Item
Produtos recomendados
grau
semiconductor grade
Nível de qualidade
pressão de vapor
1 mmHg ( 719 °C)
Ensaio
99.99% trace metals basis (Purity excludes sodium content.)
Formulário
pellets
composição
KOH, >85.0%
Impurezas
15% water
pH
~13.5 (25 °C, 5.6 g/L)
pf
361 °C (lit.)
traços de cátion
Na: ≤500.0 ppm
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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Categorias relacionadas
Descrição geral
Aplicação
- 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.
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
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
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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