Granular Ammonium Sulfate Supplied from China
Granular ammonium sulfate from China — a coarse, free-flowing form of (NH4)2SO4 for bulk blending, compound fertilizer production and mechanical application.
Supplied from China · Crystalline and granular · Container and bulk shipment
Product overview
Granular ammonium sulfate is the same chemistry as standard ammonium sulfate, processed into a coarser granular form. The larger, more uniform particles make it suitable for mechanical spreading, for blending with other granular fertilizers without segregating, and for feeding into NPK granulation plants. Buyers who specify granular ammonium sulfate from China are usually balancing two things: particle size distribution and the consistency of the grade over repeated shipments.
Where it is used
- Bulk blending with other granular fertilizers
- NPK and compound fertilizer granulation
- Direct field application by mechanical spreader
- Agricultural supply to distributors of granular straight fertilizers
Availability
We supply both granular and crystalline ammonium sulfate. Ammonium sulfate supply in China is driven largely by production from other industrial processes rather than dedicated synthesis, so the particle size and analysis available for a given shipment follow the production schedule. Tell us your requirement and we will confirm the specification we can offer against the TDS and COA for the lot, rather than quoting a nominal figure the cargo may not match.
Product identity
| Chemical name | Ammonium sulfate, granular |
|---|---|
| Molecular formula | (NH4)2SO4 |
| CAS number | 7783-20-2 |
| Grade analysis (nominal) | 21-0-0-24S |
| Appearance | White to off-white granules |
| Typical use | Bulk blends, NPK production, direct application |
| HS heading (fertilizer grade) | 3102.21 |
Lot-specific data: Typical specification is issued per production lot and confirmed against the TDS and COA supplied with the quotation.
Granular Ammonium Sulfate — typical specification
Nutrient figures are nominal values determined by the chemistry of the compound. Every other parameter varies by producer and by production lot and is declared on the documents issued for the lot shipped.
| Parameter | Value |
|---|---|
| Nitrogen (N) | 21% nominal (21-0-0) Declared per lot on the COA |
| Sulfur (S) | 24% nominal (24S) Declared per lot on the COA |
| Particle size distribution | Confirmed per lot — see TDS / COA Producer- and lot-specific |
| Granule strength / crush resistance | Confirmed per lot — see TDS / COA |
| Moisture | Confirmed per lot — see TDS / COA |
| Bulk density | Confirmed per lot — see TDS / COA |
| Free acid | Confirmed per lot — see TDS / COA |
Values marked “confirmed per lot” are lot-specific. The figures applying to your cargo are declared on the Certificate of Analysis and Technical Data Sheet issued for that production lot. Send us your requirements and we will confirm the specification before you commit.
Need the specification before you order? Tell us which parameters are critical for your process — particle size for a blend, moisture for storage, free acid for a reaction — and we will confirm what the available production can meet, in writing, before you commit.
Why buyers specify granular ammonium sulfate
Blends without segregating
When the particle size of a component does not match the rest of a blend, the blend separates during handling. Granular ammonium sulfate is specified by blenders to avoid that problem.
Mechanical application
The coarse, free-flowing granules are suited to spreader equipment and to handling systems where dust and caking in fine crystalline material cause operational problems.
Feedstock for granulation plants
Compound fertilizer producers use granular ammonium sulfate as a nitrogen and sulfur carrier in their own granulation lines.
Same agronomic chemistry
The nutrient analysis is the same as the crystalline form — the difference is physical form and handling behaviour, not nutrition.
Applications
- Bulk blending with other granular fertilizers
- NPK and compound fertilizer granulation
- Direct field application by mechanical spreader
- Agricultural supply to distributors of granular straight fertilizers
Packaging options
- 25 kg bags. Standard small bags for distributors and retail-facing supply. Bag material, printing and palletisation are agreed per order.
- 50 kg bags. Larger bags for agricultural distribution and handling systems that work at 50 kg unit weights.
- Jumbo bags (FIBC). Typically used for industrial buyers and for container or bulk programmes where large unit weights reduce handling cost.
- Bulk (in vessel). Loose cargo for bulk vessel shipment, subject to vessel availability, loading port facilities and discharge requirements at destination.
Container & bulk shipment
Bagged material ships in containers from Qingdao or Tianjin. Large programmes can be arranged as bulk vessel cargo where the destination can discharge loose material. We quote FOB, CFR or CIF — tell us the trade term you want to work on and your destination port.
Loading quantity: Loading quantity depends on packaging, container type and shipping requirements.
Quality documents issued with the shipment
Documents are issued on a per-shipment basis. The certificate of analysis is the manufacturer's own document for the production lot actually shipped — not a document prepared by the trading company.
Certificate of Analysis (COA)
The analysis of the production lot shipped, issued by the manufacturer. This is the document that tells you what you received — check it against the contract specification.
Technical Data Sheet (TDS)
Product description, physical and chemical properties, handling and storage information for the grade.
Export documents
Commercial invoice, packing list, certificate of origin and bill of lading, prepared to match your payment instrument and destination requirements.
Certification beyond this set is reviewed and confirmed for each order before contract — see Quality & Documents.
Granular Ammonium Sulfate — common questions
What is the difference between granular and crystalline ammonium sulfate?
The chemical composition is the same. Granular ammonium sulfate has been processed into coarser, more uniform particles, which is what blenders and mechanical spreading equipment require. See our guide Granular vs Crystalline Ammonium Sulfate.
What particle size can you supply?
Particle size distribution is producer- and lot-specific. Give us the size range your blend or spreader requires and we will confirm what the available production can meet before you commit.
Is granular ammonium sulfate suitable for bulk blending?
Yes — that is one of its main uses. For a blend to stay stable, the ammonium sulfate granules need to match the size of the other components, so the size range is agreed before order.
Guides for granular ammonium sulfate buyers
How to Choose an Ammonium Sulfate Supplier in China
What actually distinguishes a capable export supplier from a broker with a quotation template — and how to find out which one you are talking to.
Read more →Ammonium Sulfate Packaging Guide
Every packaging format has a cost, a handling implication and a loading consequence. Here is how to choose one and what to write into the purchase order.
Read more →Granular vs Crystalline Ammonium Sulfate
The chemistry is identical. The physical form is not — and that difference decides whether your blend stays together and whether your spreader works.
Read more →Ammonium Sulfate for Compound Fertilizer Production
For a granulation or blending plant, ammonium sulfate is a nitrogen and sulfur carrier whose value depends on physical form as much as price.
Read more →Looking for granular ammonium sulfate from China?
Request the specification and a quotation. Send your grade, form, particle size requirement, packaging, quantity and destination port.