Ammonium sulfamate
General Product Information
| Article | Ammonium sulfamate |
| Synonyms | Ammonium sulphamate, Ammonium amidosulfonate |
| CAS No. | 7773-06-0 |
| EEG No. | – |
| EINECS No. | 231-871-7 |
| IMO | – |
| Tariff Code | 28429080 |
| UN No. | – |
| VLG/ADR | – |
Description
Ammonium sulfamate is an inorganic salt mainly used in the industrial and agricultural sectors. It occurs as a white, odorless, crystalline powder that is highly soluble in water. Ammonium sulfamate is used because of its role as a compost accelerator and its application as a flame retardant in the plastics industry. It is also used in analytical chemistry and laboratories as a reagent.
Characteristics
- Odor: Odorless.
- Hygroscopic: Yes.
- Color: White.
- Grade: Technical.
- Solubility: Highly soluble in water.
- Shape: Crystals or powder.
Physical & Chemical Properties
| Chemical Structure | NH4SO3NH2 |
| Molar Weight | 114.12 g/mol |
| Melting Point | 131-135 °C |
| Boiling Point | 160 °C (decomposition) |
| Density | 1.77 g/cm³ at 20 °C |
| Refractive Index | – |
| pH | 5.2 (at 5% solution) |
Applications
Ammonium sulfamate is applied in various ways, for instance:
1. Compost Accelerator
In composting processes, ammonium sulfamate promotes the breakdown of tough, lignin-rich plant residues. It is applied as a solution or added directly to compost piles.
2. Flame Retardant
Within the plastics industry, ammonium sulfamate serves as a halogen-free flame retardant, particularly in polyamides (such as PA6). It retards flame formation by forming a protective carbon layer.
3. Laboratory Reagent
In analytical chemistry, ammonium sulfamate serves as a reagent for metal dissolution and stabilizing certain compounds, among others.
Interessing Links
- CAS Common Chemistry – Ammonium Sulfamate
- European Chemicals Agency (ECHA) – For chemical information and regulations.
- Ammonium Sulfamate – Chemical information by the National Library of Medicine of the National Center for Biotechnology Information (NIH-NCBI).
- Wikipedia – Ammonium sulfamate