238074

Ammonium acetate

ACS reagent, ≥97%

• Lineáris képlet: CH₃CO₂NH₄
• CAS-szám: 631-61-8
• Molekulatömeg: 77.08
• Beilstein: 4186741
• EC-szám: 211-162-9
• MDL-szám: MFCD00013066
• UNSPSC kód: 12352300
• eCl@ss: 39021908
• PubChem Substance ID: 329752506
• NACRES: NA.21

Tulajdonságok

• grade: ACS reagent
• Minőségi szint: 200
• gőznyomás: <0.001 hPa
• Teszt: ≥97%
• form: powder; solid
• szennyeződések: ≤0.005% insolubles
• izzítási maradék: ≤0.01%
• pH: 6.7-7.3 (25 °C, 5%)
• mp: 110-112 °C (dec.) (lit.)
• anion nyomok: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.001%
• kation nyomok: 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
• Nemzetközi kémiai azonosító kulcs: USFZMSVCRYTOJT-UHFFFAOYSA-N

Leírás

Általános leírás

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.

Alkalmazás

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.

Tulajdonságok és előnyök

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

Biztonsági adatok

• Tárolási osztály kódja: 11 - Combustible Solids
• WGK: WGK 1
• Lobbanási pont (F): Not applicable
• Lobbanási pont (C): Not applicable