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/418/501/product-dating-information-06-25-mk.pdf
1.05428
Ammonia solution
25%, Suprapur®
Synonyme(s) :
Hydroxyde d’ammonium solution, Ammoniaque
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A propos de cet article
Nom du produit
Solution d′ammoniaque (25 %), Suprapur®
vapor pressure
483 hPa ( 20 °C)
Quality Segment
description
for inorganic trace analysis
form
liquid
expl. lim.
27 %
concentration
25%
technique(s)
AAS: suitable
bp
37.7 °C/1013 hPa
mp
-57.5 °C
density
0.9 g/mL at 25 °C (lit.)
storage temp.
2-30°C
SMILES string
[NH4+].[OH-]
InChI
1S/H3N.H2O/h1H3;1H2
InChI key
VHUUQVKOLVNVRT-UHFFFAOYSA-N
Application
Research on the Synthesis of Zinc-Ammonium Phosphate Using Galvanic Waste Sludge as a Source of Zinc.: This study focuses on the application of 25% ammonia solution in synthesizing zinc-ammonium phosphate from galvanic waste, contributing to waste valorization and chemical recycling efforts (Marian et al., 2024).
Development of a Simultaneous Liquid Chromatography-Tandem Mass Spectrometry Analytical Method for Urinary Endogenous Substrates and Metabolites for Predicting Cytochrome P450 3A4 Activity.: Describes the use of 25% ammonia solution in the preparation phase of samples for advanced chromatographic analyses, crucial for metabolic studies in pharmaceutical research (Mano et al., 2023).
[The study of fenspiride: goals and objectives for chemical and toxicological studies].: Discusses methodologies incorporating 25% ammonia solution in toxicological evaluations, highlighting its role in enhancing detection sensitivities in forensic and clinical toxicology (Barsegyan et al., 2019).
The use of a new, modified Dittmer-Lester spray reagent for phospholipid determination by the TLC image analysis technique.: Investigates the efficacy of 25% ammonia solution as a component of a novel spray reagent for thin-layer chromatography, enhancing lipid analysis capabilities in biochemical studies (Zakrzewski et al., 2013).
Ultrasonic synthesis of stable oil filled microcapsules: This study explores the ultrasonic synthesis of oil-filled microcapsules using thiolated chitosan, potentially involving derivatives like ᴅʟ-N-Acetylhomocysteine thiolactone for improved stability and functional properties. The research provides insights into advanced microencapsulation techniques relevant in pharmaceutical and industrial applications (Source).
Other Notes
Legal Information
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Mot-clé
Danger
Mentions de précaution
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
Organes cibles
Respiratory system
Codes de danger
Classe de stockage
8A - Combustible corrosive hazardous materials
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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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