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
Wichtige Dokumente
223476
Kaliumbisulfat
reagent grade
Synonym(e):
Kaliumhydrogensulfat
About This Item
Empfohlene Produkte
Qualität
reagent grade
Qualitätsniveau
Form
powder or crystals
Konzentration
35.0-37.0% H2SO4 (titration)
mp (Schmelzpunkt)
214 °C (lit.)
Säurezahl
35‑37%(as H2SO4)
Dichte
2.32 g/mL at 25 °C (lit.)
SMILES String
[K+].OS([O-])(=O)=O
InChI
1S/K.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+1;/p-1
InChIKey
CHKVPAROMQMJNQ-UHFFFAOYSA-M
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Verwandte Kategorien
Allgemeine Beschreibung
Anwendung
- As a catalyst for the preparation of butyl paraben from p-hydroxybenzoic acid and n-butyl alcohol.[4]
- As a promoter for the synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives via Biginelli reaction in ethylene glycol.[7]
- As an acid catalyst for the synthesis of ethyl tert-butyl ether (ETBE) from ethanol and tert-butyl alcohol via reactive distillation.[8]
- As a dehydrating agent for the synthesis of pyruvic acid from tartaric acid.[9]
Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
Zielorgane
Respiratory system
Lagerklassenschlüssel
8A - Combustible corrosive hazardous materials
WGK
WGK 1
Flammpunkt (°F)
Not applicable
Flammpunkt (°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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