| Formula / Notation | (NH4)2SO4 |
|---|---|
| CAS Number | 7783-20-2 |
| Molecular Weight | 132.14 |
| Melting Point | 280 °C (decomposes) |
| Density | 1.78 at 59 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | Freely soluble in water, insoluble in ethanol |
| Appearance | Ammonium sulfate is a white odorless solid. Sinks and dissolves in water. (USCG, 1999) |
| Also Known As | diazanium;sulfate; 7783-20-2; Ammonium sulphate; Diammonium sulfate; Mascagnite; Sulfuric acid diammonium salt; Ammonium sulfate (2:1); Actamaster; Dolamin; Diammonium sulphate |
| Category | Salts |
What is Ammonium sulfate?
Ammonium sulfate is an inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia. A high-melting (decomposes above 280C) white solid which is very soluble in water (70.6 g/100 g water at 0C; 103.8 g/100 g water at 100C), it is widely used as a fertilizer for alkaline soils. It has a role as a NMR chemical shift reference compound and a fertilizer. It is an inorganic sulfate salt and an ammonium salt.
Formula & Notation
IUPAC Name: diazanium;sulfate
Other Names / Synonyms: diazanium;sulfate; 7783-20-2; Ammonium sulphate; Diammonium sulfate; Mascagnite; Sulfuric acid diammonium salt; Ammonium sulfate (2:1); Actamaster; Dolamin; Diammonium sulphate
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 280 °C (decomposes) |
| Density | 1.78 at 59 °F (USCG, 1999) - Denser than water; will sink |
| Molecular Weight | 132.14 |
| Solubility | Freely soluble in water, insoluble in ethanol |
| Appearance | Ammonium sulfate is a white odorless solid. Sinks and dissolves in water. (USCG, 1999) |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Ammonium sulfate is an inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia. A high-melting (decomposes above 280C) white solid which is very soluble in water (70.6 g/100 g water at 0C; 103.8 g/100 g water at 100C), it is widely used as a fertilizer for alkaline soils. It has a role as a NMR chemical shift reference compound and a fertilizer. It is an inorganic sulfate salt and an ammonium salt.
Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.
Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.
The formula or notation for Ammonium sulfate is: (NH4)2SO4