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392685

Sigma-Aldrich

Ammonia solution

2.0 M in ethanol

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About This Item

Linear Formula:
NH3
CAS Number:
7664-41-7
Molecular Weight:
17.03
MDL number:
MFCD00011418
UNSPSC Code:
12352300
PubChem Substance ID:
329755831
NACRES:
NA.55
Pricing and availability is not currently available.

form

liquid

concentration

1.90-2.20 M (with NaOH, titration)
2.0 M in ethanol

bp

60 °C

density

0.785 g/mL at 25 °C

application(s)

microbiology

SMILES string

N

InChI

1S/H3N/h1H3

InChI key

QGZKDVFQNNGYKY-UHFFFAOYSA-N

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General description

The product is a solution of 2M ammonia in ethanol. Ammonia is a colorless gas with a characteristic strong odor. It is highly soluble in water, alcohol, chloroform and ether.[1] Ammonia molecule is pyramidal in shape with nitrogen in the center and the three hydrogen atoms along the three vertices and the lone pair of electrons on the fourth vertex. Ammonia solution is commonly used as a base.[2]

Application

Ammonia solution (in 2M ethanol) was used as an ammonia source to study the role of ammonia in causing metabolic changes in bacteria.[3]

Signal Word

Danger

Hazard Statements

H225,H315,H318,H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

37.4 °F - closed cup

Flash Point(C)

3 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
SHBQ8890
SHBQ4574
SHBL8318
SHBL0166
SHBH5290V

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Biogenic ammonia modifies antibiotic resistance at a distance in physically separated bacteria.
Bernier SP, et al.
Molecular Microbiology, 81(3), 705-716 (2011)
Eagleson M.
Concise Encyclopedia Chemistry, 65-66 (1994)
Ledgard J.
The Preparatory Manual of Explosives., 41-41 (2007)
Patrick M Erwin et al.
The ISME journal, 8(3), 575-588 (2013-10-25)
Ascidians are ecologically important components of marine ecosystems yet the ascidian microbiota remains largely unexplored beyond a few model species. We used 16S rRNA gene tag pyrosequencing to provide a comprehensive characterization of microbial symbionts in the tunic of 42
S F Chew et al.
Journal of fish biology, 84(3), 603-638 (2014-01-21)
With the development of air-breathing capabilities, some fishes can emerge from water, make excursions onto land or even burrow into mud during droughts. Air-breathing fishes have modified gill morphology and morphometry and accessory breathing organs, which would tend to reduce
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Questions

1–2 of 2 Questions  

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

    1 answer

    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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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    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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