Nitrogen fertilizers
Ammonium Sulphate Granular/Crystalline — 21% N & 24% S Bulk Supply
FOB Black Sea / MENA · CFR/CIF worldwide on request
Key parameters
Full specification
- FOB
- CFR
- CIF
- Agriculture
- Blending
- Industrial
Full product details
Product overview
Atmospheric sulphur deposition has fallen sharply across Europe, South Asia and parts of MENA, leaving millions of hectares sulphur-deficient despite adequate nitrogen programmes. Ammonium sulphate closes that gap in a single application — 21% nitrogen as ammonium and 24% sulphur as readily plant-available sulphate. Granular grade (2–5 mm) suits direct field spreading, bulk vessel export and dry NPK blending; crystalline grade serves liquid fertilizer formulators, yeast fermentation and water-treatment plants where fast dissolution is required.
Primary buyers include rapeseed and canola growers in Eastern Europe and Canada, cotton and onion producers in Central Asia, compound fertilizer blenders supplying chloride-sensitive crops, and industrial users needing low-residue nitrogen and sulphur feedstock. The mild acidifying effect benefits alkaline calcareous soils common across the Indo-Gangetic plain and Nile delta.
Loading ports & logistics
Bulk AS loads from Black Sea terminals (Novorossiysk, Odesa region, Constanta) and selected MENA load ports on handysize through panamax vessels. Typical parcel sizes 3,000–25,000 MT; geared bulkers accepted at most origins. Loading rates 4,000–12,000 MT/day depending on berth equipment. CFR/CIF quotes cover ocean freight to nominated discharge port — major destinations include Kandla, Mundra, Chittagong, Alexandria, Istanbul and Jebel Ali. Contract lead time 10–20 days after payment confirmation and berth allocation.
Packaging & documentation
Bulk shipment in vessel holds with anti-caking treatment is standard for import tenders above 3,000 MT. Bagged options: 50 kg PP bags with PE liner (stuffed in 20 ft or 40 ft containers) or 1,000 kg FIBC big bags for inland distribution. Each lot ships with mill certificate of analysis, commercial invoice, packing list and full bill of lading set. SGS or equivalent pre-shipment inspection available on buyer request. HS classification 3102.21 — ammonium sulphate, whether or not in aqueous solution.
FAQ
When should buyers choose granular AS over crystalline grade?
Granular 2–5 mm suits mechanical spreading, bulk vessel loading and NPK blending lines. Crystalline AS is preferred for dissolution in liquid fertilizer plants, industrial fermentation and water-treatment dosing where rapid solubility matters more than granule hardness.
How does ammonium sulphate affect soil pH compared to urea?
Each tonne of AS applied contributes net soil acidification through sulphur oxidation and ammonium nitrification — roughly equivalent to 300–400 kg CaCO₃ neutralization demand. On alkaline calcareous soils this is agronomically beneficial; on soils below pH 5.5, alternate with calcium-based nitrogen sources.
What vessel parcel sizes apply to bulk AS export contracts?
Standard bulk parcels range from 3,000 to 25,000 MT on handysize through panamax bulkers. Minimum commercial lot is 1,000 MT; smaller trial cargoes can be arranged in containers with 50 kg bags or 1,000 kg FIBC on request.