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
221228
Idrossido di ammonio
ACS reagent, 28.0-30.0% NH3 basis
Sinonimo/i:
Ammoniaca acquosa, Ammoniaca in acqua
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Informazioni su questo articolo
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Nome del prodotto
Idrossido di ammonio, ACS reagent, 28.0-30.0% NH3 basis
form
liquid
InChI
1S/H3N.H2O/h1H3;1H2
SMILES string
[NH4+].[OH-]
InChI key
VHUUQVKOLVNVRT-UHFFFAOYSA-N
grade
ACS reagent
autoignition temp.
1204 °F
expl. lim.
27 %
concentration
28.0-30.0% NH3
impurities
MnO4- reducers, passes test
≤0.002% CO2
ign. residue
≤0.002%
pH
11.7 (20 °C)
Quality Level
solubility
water: soluble
density
0.9 g/mL at 25 °C (lit.)
anion traces
chloride (Cl-): ≤0.5 ppm
nitrate (NO3-): ≤2 ppm
phosphate (PO43-): ≤2 ppm
sulfate (SO42-): ≤2 ppm
cation traces
Fe: ≤0.2 ppm
heavy metals: ≤0.5 ppm (by ICP)
storage temp.
2-8°C
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Categorie correlate
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Questo articolo | 338818 | 17093 | 30501-M |
|---|---|---|---|
| concentration 28.0-30.0% NH3 | concentration 28% NH3 in H2O | concentration ≥25% NH3 in H2O | concentration ≥25% NH3 |
| grade ACS reagent | grade - | grade - | grade - |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form liquid | form liquid | form liquid | form liquid |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
| pH 11.7 (20 °C) | pH 11.7 (20 °C) | pH 11.7 (20 °C) | pH - |
Application
- Come terreno di coltura per la preparazione di nanoparticelle di magnetite (Fe3O4) tramite un metodo modificato di co-precipitazione chimica controllata.[1]
- Come solvente e reagente per preparare 4-aril e 4-alchil-2,6-dimetil-1,4-diidro-3,5-piridinadicarbossilati tramite la sintesi di Hantzsch in un sintetizzatore con cavità a microonde.[2]
General description
Other Notes
Packaging
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3
target_organs
Respiratory system
Classe di stoccaggio
8B - Non-combustible corrosive hazardous materials
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
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Salve, il valore di concentrazione è in peso o in volume? Grazie
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The product's concentration is expressed as % weight/weight.
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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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