238074

Ammonio acetato

ACS reagent, ≥97%

• Formula condensata: CH₃CO₂NH₄
• Numero CAS: 631-61-8
• Peso molecolare: 77.08
• Beilstein: 4186741
• Numero CE: 211-162-9
• Numero MDL: MFCD00013066
• Codice UNSPSC: 12352300
• eCl@ss: 39021908
• ID PubChem: 329752506
• NACRES: NA.21

Proprietà

• Grado: ACS reagent
• Livello qualitativo: 200
• Tensione di vapore: <0.001 hPa
• Saggio: ≥97%
• Forma fisica: powder; solid
• Impurezze: ≤0.005% insolubles
• Residuo alla calcinazione: ≤0.01%
• pH: 6.7-7.3 (25 °C, 5%)
• Punto di fusione: 110-112 °C (dec.) (lit.)
• Anioni in tracce: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.001%
• Cationi in tracce: Fe: ≤5 ppm; heavy metals: ≤5 ppm
• Stringa SMILE: N.CC(O)=O
• InChI: 1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3; USFZMSVCRYTOJT-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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.

Caratteristiche e vantaggi

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 11 - Combustible Solids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable