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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

Quality Level

100

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)
Ledgard J.
The Preparatory Manual of Explosives., 41-41 (2007)
Eagleson M.
Concise Encyclopedia Chemistry, 65-66 (1994)
Lars Nybo et al.
The Journal of physiology, 563(Pt 1), 285-290 (2004-12-22)
We evaluated whether peripheral ammonia production during prolonged exercise enhances the uptake and subsequent accumulation of ammonia within the brain. Two studies determined the cerebral uptake of ammonia (arterial and jugular venous blood sampling combined with Kety-Schmidt-determined cerebral blood flow;
S M Gråsten et al.
The Journal of nutrition, 130(9), 2215-2221 (2000-08-26)
Cereal fiber may reduce the risk of colorectal cancer by diluting colonic contents due to increased fecal output, by accelerating intestinal transit, by increasing fecal frequency and by altering bacterial metabolism. The effects of whole-meal rye bread on some putative
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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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