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Product Details:
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| Product Name: | Ammonium Sulfate | Nitrogen Content: | ≥20.5% |
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| Chemical Formula: | (NH4)2SO4 | HS Code: | 3102210000 |
| CAS No.: | 7783-20-2 | Appearance: | White Crystal |
| High Light: | Ammonium Sulfate 7783-20-2,Crystal Nitrogen Fertilizer Ammonium Sulfate |
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Agriculture Grade Ammonium Sulphate Crystal Nitrogen Fertilizer 21% Ammonium Sulfate
Ammonium sulfate abbreviation SA, molecular formula: (NH4)HSO4, soluble in water, insoluble in ethanol. The aqueous solution has a spicy and salty taste, and the decomposition temperature of ammonium sulfate is 280 ° C, and the ammonia gas is released into acid ammonium sulfate NH4HSO4. The change of temperature has little effect on the solubility of ammonium sulfate in water, and its relative hygroscopicity is small. Ammonium sulfate (SA) standard implementation GB/535-2020
| ANALYSIIS IITEM | IINDEXES | |
| STANDARD VALUE | ANALYSIIS RESULT | |
| Appearance | white or off-white, powder or crystal | white crystal |
| Nitrogen (N), % | ≥20.5% | 21.0 |
| Sulfur (S), % | ≥24.0% | 24.9 |
| Free acid (H2SO4), % | ≤0.05 | 0.007 |
| Moisture (H2O), % | ≤0.5 | 0.2 |
| Water insoluble matter, % | ≤0.5 | 0.1 |
| Chloride (Cl-), % | ≤1.0 | 0.3 |
| Fluoride (F), % | ≤500 | 10 |
| Thiocyanate ion, mg/kg | ≤1000 | 50 |
| Mercury (Hg), mg/kg | ≤5 | ＜0.1 |
| Arsenic (As), mg/kg | ≤10 | ＜0.1 |
| Cadmium (Cd), mg/kg | ≤10 | ＜0.1 |
| Lead (Pb), mg/kg | ≤500 | ＜0.1 |
| Chromium (Cr), mg/kg | ≤500 | ＜0.1 |
| Total PAHs, mg/kg | ≤1.0 | 0.9 |
Ammonium sulfate is a quick-acting fertilizer, used for general crops, and can be used as top dressing, base fertilizer, and seed fertilizer, especially in areas where the soil is deficient in sulfur. However, for acidic soils, it must be applied in combination with lime (not mixed). In addition, it can also be used as welding flux, fabric fire retardant, salting out process of pharmaceutical production, catalyst for food sauce color, yeast culture, accelerant for acid dye dyeing and deliming agent for leather, etc. Application on neutral and stony soils tends to cause soil compaction. Long-term application of ammonium sulfate increases soil acidity.
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