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499145

Sigma-Aldrich

Ammonia solution

7 N in methanol

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Linear Formula:
NH3
CAS Number:
7664-41-7
Molecular Weight:
17.03
MDL number:
MFCD00011418
PubChem Substance ID:
329757544
NACRES:
NA.55

form

liquid

Quality Level

100

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
779423718939392693
Ammonia solution 7 N in methanol

Sigma-Aldrich

499145

Ammonia solution

Ammonia solution 4 M in methanol

Sigma-Aldrich

779423

Ammonia solution

Ammonia solution 0.4 M in THF

Sigma-Aldrich

718939

Ammonia solution

Ammonia solution 2.0 M in isopropanol

Sigma-Aldrich

392693

Ammonia solution

concentration

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

concentration

3.6-4.4 M (back titration with NaOH), 3400-4400 mmol/L (back titration with NaOH), 4 M in methanol

concentration

0.30-0.50 M (by NaOH, titration), 0.4 M in THF

concentration

2.0 M in isopropanol, 2.0-2.2 M (by NaOH, titration)

impurities

≤0.1% water (Karl Fischer)

impurities

-

impurities

-

impurities

-

density

0.779 g/mL at 25 °C

density

-

density

0.881 g/mL at 25 °C

density

0.773 g/mL at 25 °C

storage temp.

2-8°C

storage temp.

-

storage temp.

2-8°C

storage temp.

-

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.

Signal Word

Danger

Hazard Classifications

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

Target Organs

Eyes

Supplementary Hazards

EUH071

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

57.2 °F - closed cup

Flash Point(C)

14 °C - closed cup

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Tang Y, et al.
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Microwave-assisted synthesis of primary amine HX salts from halides and 7M ammonia in methanol.
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