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Merck

238074

Acétate d′ammonium

ACS reagent, ≥97%

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A propos de cet article

Formule linéaire :
CH3CO2NH4
Numéro CAS:
Poids moléculaire :
77.08
NACRES:
NA.21
PubChem Substance ID:
eCl@ss:
39021908
UNSPSC Code:
12352300
EC Number:
211-162-9
MDL number:
Beilstein/REAXYS Number:
4186741
Assay:
≥97%
Grade:
ACS reagent
Form:
powder, solid
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grade

ACS reagent

Quality Segment

vapor pressure

<0.001 hPa

assay

≥97%

form

powder, solid

impurities

≤0.005% insolubles

ign. residue

≤0.01%

pH

6.7-7.3 (25 °C, 5%)

mp

110-112 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤5 ppm, nitrate (NO3-): ≤0.001%, sulfate (SO42-): ≤0.001%

cation traces

Fe: ≤5 ppm, heavy metals: ≤5 ppm

SMILES string

N.CC(O)=O

InChI

1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3

InChI key

USFZMSVCRYTOJT-UHFFFAOYSA-N

General description

Ammonium acetate (NH4CH3CO2, NH4OAc) is a water-soluble, hygroscopic ammonium salt. It is an eco-friendly and inexpensive compound that can be prepared by reacting glacial acetic acid with ammonia or ammonium carbonate. It is used as a catalyst as well as a source of ammonia in organic synthesis.

Application

Ammonium acetate can be used as a reactant as well as a catalyst in the synthesis of:      
  • 1,3-oxazine derivatives by three-component condensation reaction with 2-naphthol and aromatic aldehydes.      
  • Symmetrical terpyridine derivatives by treating with aromatic aldehydes and ethyl cyanoacetate.      
  • Isoquinolines, furopyridines, and thienopyridines via Pd-catalyzed sequential coupling-imination-annulation reactions of ortho-bromoarylaldehydes and terminal alkynes.

It can also be used as a nitrogen source to synthesize benzoxazole derivatives via multicomponent condensation reaction with catechols, and various aldehydes in the presence of Fe(III)−salen complex as a catalyst.

Features and Benefits

NH4OAc is an eco-friendly, shelf-stable, and safe reagent.


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Classe de stockage

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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