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Sigma-Aldrich

Ammonia

puriss., anhydrous, ≥99.95%

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Synonym(s):
Ammonia gas
Linear Formula:
NH3
CAS Number:
Molecular Weight:
17.03
Beilstein:
3587154
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor density

0.6 (vs air)

Quality Level

vapor pressure

8.75 atm ( 21 °C)

grade

puriss.

Assay

≥99.95%

autoignition temp.

1203 °F

expl. lim.

25 %

impurities

≤0.01% water

bp

−33 °C (lit.)

mp

−78 °C (lit.)

SMILES string

N

InChI

1S/H3N/h1H3

InChI key

QGZKDVFQNNGYKY-UHFFFAOYSA-N

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Application

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.
  • Ammonia can be used in the direct synthesis of primary amines from alcohols.
  • Synthesis of N-doped graphene by vapor deposition in the presence of ammonia gas has been reported.

Packaging

Cylinder with net ~1 kg

Other Notes

Sales restrictions may apply

Recommended products

Recommended DIN 477 - Nr. 6

replaced by

Product No.
Description
Pricing

Signal Word

Danger

Hazard Classifications

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

Supplementary Hazards

Storage Class Code

2A - Gases

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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
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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