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Ammonium acetate

IUPAC: azanium acetate

C2H7NO2 Salts CAS 631-61-8
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Quick Reference
Formula / NotationC2H7NO2
CAS Number631-61-8
Molecular Weight77.08
Melting Point237.2 °F (USCG, 1999)
Density1.17 at 68 °F (USCG, 1999) - Denser than water; will sink
SolubilitySOL IN LESS THAN 1 PART WATER; FREELY SOL IN ALCOHOL; SLIGHTLY SOL IN ACETONE.
AppearanceAmmonium acetate appears as 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. It is used in che...
Also Known Asazanium acetate; 631-61-8; Acetic acid, ammonium salt; acetic acid ammonium salt; RRE756S6Q2; DTXSID5023873; CHEBI:62947; RefChem:5546; DTXCID203873; 211-162-9
CategorySalts

What is Ammonium acetate?

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 (114C) 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 buffer and a food acidity regulator. It is an ammonium salt and an acetate salt.

Formula & Notation

C2H7NO2

IUPAC Name: azanium acetate

Other Names / Synonyms: azanium acetate; 631-61-8; Acetic acid, ammonium salt; acetic acid ammonium salt; RRE756S6Q2; DTXSID5023873; CHEBI:62947; RefChem:5546; DTXCID203873; 211-162-9

Properties & Characteristics

Appearance: Ammonium acetate appears as 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. It is used in che.... Molecular formula: C2H7NO2. Molecular weight: 77.08 g/mol. Melting point: 237.2 °F (USCG, 1999). Density: 1.17 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: SOL IN LESS THAN 1 PART WATER; FREELY SOL IN ALCOHOL; SLIGHTLY SOL IN ACETONE.. Vapor pressure: 0.00014 [mmHg].

Physical Data

PropertyValue
Melting Point237.2 °F (USCG, 1999)
Density1.17 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight77.08
SolubilitySOL IN LESS THAN 1 PART WATER; FREELY SOL IN ALCOHOL; SLIGHTLY SOL IN ACETONE.
AppearanceAmmonium acetate appears as 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. It is used in che...

Uses & Applications

Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.

Safety Information

Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Ammonium acetate
Formula C2H7NO2
CAS Number 631-61-8
Molecular Weight 77.08
Category Salts
Synonyms azanium acetate; 631-61-8; Acetic acid, ammonium salt; acetic acid ammonium salt; RRE756S6Q2; DTXSID5023873; CHEBI:62947; RefChem:5546; DTXCID203873; 211-162-9

Frequently Asked Questions

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 (114C) 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 buffer and a food acidity regulator. It is an ammonium salt and an acetate salt.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.