A comprehensive guide to ammonium acetate 60% solution, its applications in mining and laboratory work, technical specifications, and how it is supplied from a US-based distributor.
Ammonium acetate 60% (CH3COONH4, CAS 631-61-8) is a clear, nearly colorless aqueous solution with a specific gravity of 1.09 and pH of 6–8. Its primary uses are as a modifying agent in mining flotation, in laboratory and analytical applications, in metal recovery processes, and in industrial synthesis. Stratus Chemical supplies technical grade solution in drums, totes, and bulk quantities.
| Property | Value |
|---|---|
| Chemical name | Ammonium acetate |
| CAS number | 631-61-8 |
| Molecular formula | CH3COONH4 |
| Molecular weight | 77.08 g/mol |
| Solution concentration | 60% w/w (58–62% typical) |
| Appearance | Clear, nearly colorless to pale yellow liquid |
| Packaging | Drums, totes, bulk |
| Documentation | COA & SDS provided on request |
| Component | Content |
|---|---|
| Ammonium acetate (CH3COONH4) | 58–62% w/w |
| Iron (as Fe) | 50 mg/kg max |
| Heavy metals (as Pb) | 50 mg/kg max |
| pH (neat) | 6–8 |
| Specific gravity @ 20°C | 1.09 |
| Density | 9.1 lb/gal (1.09 kg/L) |
Ammonium acetate's neutral pH (6–8) is a key advantage. Ammonium chloride and ammonium sulfate are acidic in solution due to hydrolysis of the ammonium cation, requiring pH adjustment. Ammonium acetate forms a natural buffer system—the weak acetate anion resists pH drift, so the solution remains neutral without additives. This property is critical in mining flotation, laboratory work, and metal recovery where pH control is essential and chemical costs matter.
Ammonium acetate functions as a modifying agent, influencing mineral surface chemistry and separation efficiency in base metal and precious metal recovery. Its neutral pH reduces downstream processing complexity and costs.
Widely used in molecular biology, mass spectrometry, chromatography, and buffer systems where purity and pH stability are critical.
In hydrometallurgical processes, its ability to maintain neutral pH simplifies control and reduces product contamination.
Store in closed, lined drums or totes in a cool, well-ventilated area. The solution is hygroscopic; keep containers tightly sealed. Avoid heat and strong oxidizing agents. Handle per the Safety Data Sheet. Stable in normal storage conditions.
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