Ammonium Sulfate CAS#7783-20-2
Powerful Nitrogen Supplying & Crystallization Capacity: Stable inorganic nitrogen fertilizer and industrial salt with fast nitrogen release, high nitrogen content and easy crystallization, widely used as fertilizer, flux and chemical intermediate.
Excellent Solubility & Flame Retardant Property: Highly soluble in water, low hygroscopicity, good anti-caking and flame-retardant performance, suitable for agriculture, textile and fire-fighting formulation systems.
Stable Solid Form for Convenient Transport: White crystal or granule with uniform texture, stable under sealed dry storage, easy to weigh, transport and automatic feeding.
Ammonium sulfate is a high-demand basic inorganic salt raw material, low irritancy and wide coverage of agriculture, textile, leather, food and chemical industry application scenarios.
Chemical & Physical Properties
| Property | Value |
|---|---|
| Melting point | Decomposes above 235 ℃ |
| Density | 1.77 g/cm³ |
| Storage temp | Sealed dry cool warehouse, keep away from open flame, high heat and alkaline materials |
| Solubility | Highly soluble in water, insoluble in ethanol and acetone |
| Form | Crystal / granule |
| Color | Pure white |
| Odor | Odorless |
| PH Value | 5.0~6.0 (5% aqueous solution, weakly acidic) |
| Hygroscopicity | Slightly hygroscopic, anti-caking under dry condition |
| Stability | Stable in airtight packaging; releases ammonia when reacting with alkali |
| EINECS No. | 231-984-1 |
| CAS DataBase Reference | 7783-20-2 |
Safety Information
| Item | Value |
|---|---|
| Hazard Codes | Xi |
| Risk Statements | R36/37/38: Irritating to eyes, respiratory system and skin |
| Safety Statements | S26; S36: In case of contact with eyes, rinse immediately with plenty of water |
| UN Number | Not regulated |
| Hazard Class | Not dangerous goods |
| Packing Group | Not applicable |
| Flammability | Non-flammable |
| HS Code | 31022100 |
Main applications: Nitrogen fertilizer for wheat, rice and crops; industrial flux and soldering auxiliary; textile dyeing and printing mordant; leather tanning agent; fire extinguishing agent and flame retardant additive; food dough conditioner and yeast nutrient; battery and chemical intermediate.






