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
221864
bromure de potassium
≥99% trace metals basis
About This Item
Produits recommandés
Qualité
for analytical purposes
Pression de vapeur
<0.01 mmHg ( 20 °C)
1 mmHg ( 795 °C)
Essai
≥99% trace metals basis
Forme
powder or crystals
Technique(s)
FTIR: suitable
pH
5-6 (25 °C, 119 g/L)
Pf
734 °C (lit.)
Chaîne SMILES
[K+].[Br-]
InChI
1S/BrH.K/h1H;/q;+1/p-1
Clé InChI
IOLCXVTUBQKXJR-UHFFFAOYSA-M
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Catégories apparentées
Description générale
Application
- nitrate de cérium(IV) et d′ammonium (CAN) pour la synthèse de dibromures par bromation d′alcènes.[2]
- perborate de sodium pour la synthèse d′anilines bromées par bromation oxydative d′amines aromatiques non protégées.[3]
- peroxyde d′hydrogène et acide chlorhydrique pour bromer les composés de méthylène et méthine actifs avec une forte chimiosélectivité.[4]
Mention d'avertissement
Warning
Mentions de danger
Conseils de prudence
Classification des risques
Eye Irrit. 2
Code de la classe de stockage
13 - Non Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 1
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
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Certificats d'analyse (COA)
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Les clients ont également consulté
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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Would like to confirm if the material needs to be dried prior to ftir analysis? And if so what is the drying condition and duration.
1 answer-
Grind the KBr powder very fine in an agate mortar and pestle and dry it in a vacuum oven for approximately 3 hours at 75-80 °C. Following the drying, cool the product in a desiccator and then make a KBr pellet and obtain an IR spectrum to ensure that a baseline with no peaks (no contaminants) is obtained.
Helpful?
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Dear Sr, I want to confirm if the product: https://www.sigmaaldrich.com/AR/es/product/sigald/221864 is suitable for FTIR spectroscopy
1 answer-
Yes. This product is suitable for FT-IR spectroscopy.
Helpful?
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