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499145

Sigma-Aldrich

Ammonia solution

7 N in methanol

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Linear Formula:
NH3
CAS Number:
Molecular Weight:
17.03
MDL number:
PubChem Substance ID:
NACRES:
NA.55

form

liquid

Quality Level

concentration

6.5-7.5 M (by NaOH, titration)
7 N in methanol

impurities

≤0.1% water (Karl Fischer)

density

0.779 g/mL at 25 °C

storage temp.

2-8°C

SMILES string

N

InChI

1S/H3N/h1H3

InChI key

QGZKDVFQNNGYKY-UHFFFAOYSA-N

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This Item
779423392693718939
vibrant-m

499145

Ammonia solution

vibrant-m

779423

Ammonia solution

vibrant-m

392693

Ammonia solution

vibrant-m

718939

Ammonia solution

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

form

liquid

form

liquid

form

liquid

form

liquid

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

2-8°C

impurities

≤0.1% water (Karl Fischer)

impurities

-

impurities

-

impurities

-

density

0.779 g/mL at 25 °C

density

-

density

0.773 g/mL at 25 °C

density

0.881 g/mL at 25 °C

General description

Ammonia solution is commonly used as a pH-adjusting or buffering agent in a variety of liquid formulations. It also acts as a base in some chemical reactions.

Application

Ammonia solution (7N methanolic ammonia) can be used in the synthesis of:      
  • Hydrogen halide salts of primary amines from corresponding halides under microwave irradiation.      
  • N-alkylbis(3-aminopropyl)amines by Raney nickel catalyzed hydrogenation of N-alkylbis(cyanoethyl)amines.
  • 2-quinoxalinecarboxamide by ammonolysis of 2-methoxycarbonylquinoxaline.

Ammonia solution (7N methanolic ammonia) may be used in the preparation of trioxolanes. It may also be used in the preparation of hydrogen halide salts (HX) of primary amines under microwave irradiation.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - STOT SE 1

supp_hazards

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

57.2 °F - closed cup

flash_point_c

14 °C - closed cup


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Weak base dispiro-1,2,4-trioxolanes: potent antimalarial ozonides.
Tang Y, et al.
Bioorganic & Medicinal Chemistry Letters, 17(5), 1260-1265 (2007)
Microwave-assisted synthesis of primary amine HX salts from halides and 7M ammonia in methanol.
Saulnier MG, et al.
Tetrahedron Letters, 45(2), 397-399 (2004)
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

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