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
221228
Hydroxyde d′ammonium solution
ACS reagent, 28.0-30.0% NH3 basis
Synonyme(s) :
Ammoniaque
About This Item
Produits recommandés
Qualité
ACS reagent
Niveau de qualité
Forme
liquid
Température d'inflammation spontanée
1204 °F
Limite d'explosivité
27 %
Concentration
28.0-30.0% NH3
Impuretés
MnO4- reducers, passes test
≤0.002% CO2
Résidus de calcination
≤0.002%
pH
11.7 (20 °C)
Densité
0.9 g/mL at 25 °C (lit.)
Traces d'anions
chloride (Cl-): ≤0.5 ppm
nitrate (NO3-): ≤2 ppm
phosphate (PO43-): ≤2 ppm
sulfate (SO42-): ≤2 ppm
Traces de cations
Fe: ≤0.2 ppm
heavy metals: ≤0.5 ppm (by ICP)
Température de stockage
2-8°C
Chaîne SMILES
[NH4+].[OH-]
InChI
1S/H3N.H2O/h1H3;1H2
Clé InChI
VHUUQVKOLVNVRT-UHFFFAOYSA-N
Vous recherchez des produits similaires ? Visite Guide de comparaison des produits
Description générale
Application
- comme milieu pour préparer des nanoparticules de magnétite (Fe3O4) au moyen d'un procédé de coprécipitation chimique contrôlée modifié[2]
- comme solvant et réactif pour préparer du 4-aryl et du 4-alkyl-2,6-diméthyl-1,4-dihydro-3,5-pyridinedicarboxylate par synthèse de Hantzsch dans un synthétiseur à cavité hyperfréquence[3]
Conditionnement
Autres remarques
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3
Organes cibles
Respiratory system
Code de la classe de stockage
8B - Non-combustible corrosive hazardous materials
Classe de danger pour l'eau (WGK)
WGK 2
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Faites votre choix parmi les versions les plus récentes :
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
Articles
Simultaneous determination of 27 PFAS chemical compounds after enriching the water samples with SPE using a Supelclean® ENVI-WAX weak anion exchange tube.
Simultaneous determination of 27 PFAS chemical compounds after enriching the water samples with SPE using a Supelclean® ENVI-WAX weak anion exchange tube.
Simultaneous determination of 27 PFAS chemical compounds after enriching the water samples with SPE using a Supelclean® ENVI-WAX weak anion exchange tube.
Simultaneous determination of 27 PFAS chemical compounds after enriching the water samples with SPE using a Supelclean® ENVI-WAX weak anion exchange tube.
Protocoles
In the present study we demonstrate compliance of silica gel 60 F254 HPTLC plates with USP requirements, and how HPTLC plates are suitable for the Sildenafil citrate-Limit of Imidazole test.
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
-
-
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?
-
Active Filters
Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..
Contacter notre Service technique
