Ammonium Sulfate
(NH₄)₂SO₄ · Sulfate of Ammonia · Ammonium Sulphate Fertilizer · AS
Ammonium sulfate is a white to off-white crystalline solid commonly used as a nitrogen and sulfur fertilizer. It is highly soluble in water and moderately hygroscopic, meaning it absorbs moisture from the air. While free-flowing when dry, it can cake, clump, or compact under humid conditions. KWS designs handling systems that minimize moisture exposure, corrosion, and dust generation for efficient and reliable ammonium sulfate conveying.
Overview
Chemical Formula
Common Names
Common Forms
Applications
- Nitrogen and sulfur fertilizer for agriculture
- Feed additive in livestock nutrition
- Water treatment and industrial chemical manufacturing
- Flame retardant and pH control applications
Material Characteristics
| Property | Value / Description |
|---|---|
| Common Forms | Crystalline Granules, Prills |
| Bulk Density | 55–65 lb/ft³ (depends on particle size and compaction) |
| Flow Behavior | Free-flowing when dry; cohesive under humid conditions |
| Abrasiveness | Low gentle on equipment surfaces |
| Corrosiveness | Moderate can corrode carbon steel in the presence of moisture |
| Dust Potential | Moderate fine particles may become airborne when dry |
Handling Challenges
- Caking and compaction from moisture absorption
- Corrosion of carbon steel components from ammonia and sulfur compounds
- Dust generation during conveying and transfer
- Segregation of particle sizes in storage bins
- Inconsistent feed rates due to humidity or clumping
Summary
Ammonium sulfate requires bulk handling systems designed for hygroscopic, moderately corrosive materials. KWS Manufacturing provides engineered solutions—including stainless steel screw conveyors, drag conveyors, and feeders—that ensure controlled flow, corrosion protection, and dust containment.
With extensive experience handling fertilizers and chemical bulk solids, KWS ensures efficient, safe, and low-maintenance operation for ammonium sulfate conveying systems.
