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09682

Sigma-Aldrich

Ammoniak

puriss., anhydrous, ≥99.95%

Synonym(e):

Ammonia gas

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About This Item

Lineare Formel:
NH3
CAS-Nummer:
7664-41-7
Molekulargewicht:
17.03
Beilstein:
3587154
EG-Nummer:
231-635-3
MDL-Nummer:
MFCD00011418
UNSPSC-Code:
12142100
PubChem Substanz-ID:
329748795
NACRES:
NA.22

1.980,00 €

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Dampfdichte

0.6 (vs air)

Dampfdruck

8.75 atm ( 21 °C)

Qualität

puriss.

Assay

≥99.95%

Selbstzündungstemp.

1203 °F

Expl.-Gr.

25 %

Verunreinigungen

≤0.01% water

bp

−33 °C (lit.)

mp (Schmelzpunkt)

−78 °C (lit.)

SMILES String

N

InChI

1S/H3N/h1H3

InChIKey

QGZKDVFQNNGYKY-UHFFFAOYSA-N

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Anwendung

Ammonia gas is a common reagent or reactant in the synthesis of variety of nitrogen containing inorganic compounds and organic intermediates. It is either used directly in gas phase reaction or bubbled through the reaction mixture.[1]
  • Ammonia can be used in the direct synthesis of primary amines from alcohols.[2]
  • Synthesis of N-doped graphene by vapor deposition in the presence of ammonia gas has been reported.[3][4]

Verpackung

Zylinder mit netto ~1 kg

Sonstige Hinweise

Kann Verkaufsbeschränkungen unterliegen.

Empfohlene Produkte

Recommended DIN 477 - Nr. 6

Ersetzt durch

Produkt-Nr.
Beschreibung
Preisangaben

294993

Ammoniak, anhydrous, ≥99.98%

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 3 Inhalation - Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Gas 2 - Press. Gas Liquefied gas - Skin Corr. 1B

Zusätzliche Gefahrenhinweise

EUH071

Lagerklassenschlüssel

2A - Gases

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
STBL4612
STBL3926
STBL3874
STBL3547
STBL3122

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Selective synthesis of primary amines directly from alcohols and ammonia.
Gunanathan C and Milstein D
Angewandte Chemie (International Edition in English), 47(45), 8661-8664 (2008)
Ammonia.
Ullmann's Encyclopedia of Industrial Chemistry (2006)
Synthesis of N-doped graphene by chemical vapor deposition and its electrical properties.
Wei D, et al.
Nano Letters, 9(5), 1752-1758 (2009)
Liangti Qu et al.
ACS nano, 4(3), 1321-1326 (2010-02-17)
Nitrogen-doped graphene (N-graphene) was synthesized by chemical vapor deposition of methane in the presence of ammonia. The resultant N-graphene was demonstrated to act as a metal-free electrode with a much better electrocatalytic activity, long-term operation stability, and tolerance to crossover
Patricia A Wright et al.
Respiratory physiology & neurobiology, 184(3), 231-240 (2012-08-23)
In this review we pose the following seven questions related to ammonia and fish that represent gaps in our knowledge. 1. How is ammonia excretion linked to sodium uptake in freshwater fish? 2. How much does branchial ammonia excretion in
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 Antwort

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 Antwort

    1. 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

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