Ammoniumacetat

Bezeichnung:Ammoniumacetat

CAS-Nr631-61-8

Englisch Name:Ammonium acetate

CBNumberCB8438173

SummenformelC2H7NO2

Molgewicht77.08

MOL-Datei631-61-8.mol

Synonyma

Ammoniumacetat

Ammoniumacetat physikalisch-chemischer Eigenschaften

Schmelzpunkt	110-112 °C (dec.) (lit.)
Siedepunkt	138.46°C (rough estimate)
Dichte	1.07 g/mL at 20 °C
Dampfdruck	0.017-0.02Pa at 25℃
Brechungsindex	1.4350 (estimate)
Flammpunkt	136 °C
storage temp.	Store at +15°C to +25°C.
Löslichkeit	H₂O: 1 M at 20 °C, clear, colorless
Aggregatzustand	Solid
pka	4.6(Acetic Acid), 9.3(Ammonium Hydroxide)(at 25℃)
Farbe	White
Säure-Base-Indikators(pH-Indikatoren)	6.7 - 7.3
Geruch (Odor)	Slight acetic acid odor
PH	7(1 mM solution);7(10 mM solution);7(100 mM solution);6.95(1000 mM solution)
Wasserlöslichkeit	1480 g/L (20 ºC)
Sensitive	Hygroscopic
maximale Wellenlänge (λmax)	λ: 260 nm Amax: 0.015 λ: 280 nm Amax: 0.01
Merck	14,495
BRN	4186741
Stabilität	Hygroscopic
InChIKey	USFZMSVCRYTOJT-UHFFFAOYSA-N
LogP	-2.79
CAS Datenbank	631-61-8(CAS DataBase Reference)
NIST chemische Informationen	Ammonium acetate, anhydrous(631-61-8)
EPA chemische Informationen	Ammonium acetate (631-61-8)

Sicherheit

S-Sätze:	24/25
RIDADR	UN 9079
WGK Germany	3
RTECS-Nr.	AF3675000
F	3
TSCA	Yes
HS Code	29152900
Giftige Stoffe Daten	631-61-8(Hazardous Substances Data)
Toxizität	LD i.v. in mice: 1.8 mg (NH4+)/20g (Welch)

Gefahreninformationscode (GHS)

Ammonium acetate Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Aussehen Eigenschaften
C2H7NO2; Farblose Kristalle, die schwach nach Essigsäure riechen.
Gefahren für Mensch und Umwelt
Reizt die Augen.
Nach Verschlucken großer Mengen Muskelbeschwerden, Tremor, Übelkeit und Psychosen.
Nicht mit starken Säuren und starken Laugen in Berührung bringen.
Schutzmaßnahmen und Verhaltensregeln
Geeignete Schutzhandschuhe als kurzzeitiger Staubschutz.
Verhalten im Gefahrfall
Trocken aufnehmen und der Entsorgung zuführen. Nachreinigen.
Auf Umgebung abstimmen.
Erste Hilfe
Nach Hautkontakt: Mit reichlich Wasser abwaschen.
Nach Augenkontakt: Mit reichlich Wasser bei geöffnetem Lidspalt mindestens 10 Minuten ausspülen. Sofort Augenarzt hinzuziehen.
Nach Einatmen: Frischluft.
Nach Verschlucken: Reichlich Wasser trinken lassen. Erbrechen auslösen. Arzt hinzuziehen.
Nach Kleidungskontakt: Kontaminierte Kleidung entfernen.
Ersthelfer: siehe gesonderten Anschlag
Sachgerechte Entsorgung
Gelöst als halogenfreie, organische Lösemittelabfälle.
Chemische Eigenschaften
Ammonium acetate is a white, deliquescent crystalline solid with a slightly acetic odor. It is used as a reagent in analytical chemistry for determining lead and iron content，a chemical intermediate in manufacturing acetamide. It is also a diuretic in veterinary medicine, in other drugs, in textile dyeing, in meat preservative, in foam rubbers, in vinyl plastics, in stripping explosives, and in determining lead and iron content.
Physikalische Eigenschaften
White crystalline solid; deliquescent; melts at 114°C; decomposes at elevated temperatures; density 1.17 g/cm³ at 20°C, density of a 10% solution 1.022 g/mL, and a 50% solution 1.092 g/mL; very soluble in cold water (1,480 g/L at 4°C); also soluble in cold alcohol and acetone (78.9 g/L in methanol at 15°C); solution loses ammonia on standing and becomes acidic.
Verwenden
Ammonium acetate is used in the manufacture of acetamide and as a diuretic and diaphoretic in medical applications. The wool industry also uses this salt as a dye mordant.
Buffer solution; determination of lead and iron; separating lead sulfate from other sulfates.
Verwenden
Ammonium acetate solution can be used to study molecular biology, biological buffers, reagents and DNA and RNA purification. Ammonium acetate solution has been used to study pharmacokinetic analysis of α and β epimers of glycyrrhetinic acid in rat plasma. Ammonium acetate solution has also been used in a study to develop a method for the simultaneous determination of aristolochic acids A and B in some Chinese herbals and traditional Chinese patent medicines.
Verwenden
Ammonium acetate is a reagent used in chromatographic analysis of various compounds such as oligos, proteins, and peptides. It is also employed with acetic acid to provide a buffer solution. Generally it behaves as a catalyst in many reactions like Knoevenagel, Borch. It is also employed as a nutrient additive.
Definition
ChEBI: Ammonium acetate is an ammonium salt obtained by reaction of ammonia with acetic acid. A deliquescent white crystalline solid, it has a relatively low melting point (114℃) for a salt. Used as a food acidity regulator, although no longer approved for this purpose in the EU. It has a role as a food acidity regulator and a buffer. It is an acetate salt and an ammonium salt.
synthetische
Ammonium acetate is manufactured by neutralizing acetic acid with ammonium carbonate or by passing ammonia gas into glacial acetic acid. Acidic ammonium acetate, CH3CO2NH4.CH3CO2H[25007-86-7], is manufactured by dissolving the neutral salt in acetic acid.
Allgemeine Beschreibung
A white crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Ammonium acetate is used in chemical analysis, in pharmaceuticals, in preserving foods, and for other uses.
Air & Water Reaktionen
Water soluble.
Reaktivität anzeigen
Ammonium acetate causes the decomposition of sodium hypochlorite within a few seconds [Mellor 2 Supp. 1:550 1956].
Health Hazard
Inhalation of dust irritates nose and mouth. Ingestion irritates mouth and stomach. Contact with dust causes irritation of eyes and mild irritation of skin.
Brandgefahr
Special Hazards of Combustion Products: Irritating vapors of ammonia acetic acid, and nitrogen oxides may form in fires.
Flammability and Explosibility
Non flammable
Biochem/physiol Actions
Ammonium acetate can be used in proteinaceous baits and in beer waste to increase their attraction to Ceratitis capitate. It helps in the progression of acetone-butanol-ethanol (ABE) fermentation when it is used as the only nitrogen source.
Sicherheitsprofil
Poison by intravenous route. Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of NO, and NH3
mögliche Exposition
Ammonium acetate is used as a chemical reagent, to make drugs; foam rubber; vinyl plastics; explosives, and to preserve foods. An environmental threat.
Versand/Shipping
UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
läuterung methode
Crystallise it twice from anhydrous acetic acid, and dry under vacuum for 24hours at 100o [Proll & Sutcliff Trans Faraday Soc 57 1078 1961].
Inkompatibilitäten
Combustible solid. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, sodium hypochlorite, potassium chlorate, sodium nitrite.

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