Industrial Ammonium Sulfate
Ammonium sulfate is used as a processing input in a range of industrial applications where a sulfate or ammonium source is required. For industrial buyers, the specification comes from the process — not from an agronomic grade name.
How industrial specification differs
Agricultural buyers specify against a nutrient analysis. Industrial buyers usually specify against a process requirement — and the two are not the same document.
A material that satisfies 21-0-0-24S can still be unsuitable for a particular process, because the parameters that decide the outcome are the ones the agronomic grade does not describe: water insolubles, trace content, moisture, free acid, particle size and bulk density.
The productive conversation for an industrial buyer is therefore not "which grade do you have" but "here is the parameter my process depends on, and here is the limit I need". Give us that and we will tell you what the available production can meet — including when the answer is that it cannot.
The parameters that carry weight
These are the specification points industrial buyers most often need stated, and why each one matters.
Product identity
| Chemical name | Ammonium sulfate |
|---|---|
| Formula | (NH₄)₂SO₄ |
| CAS | 7783-20-2 |
| EINECS / EC | 231-984-1 |
| Appearance | White to off-white crystals or granules |
| Solubility | Highly soluble in water |
| HS heading (fertilizer grade) | 3102.21 |
| HS code applied to your shipment | Stated on the export documents issued for the order |
| Parameter | Why it matters to a process | How it is declared |
|---|---|---|
| Water insolubles | Matters where the material is dissolved or fed into a solution-based process. Insoluble residue accumulates in equipment. | Confirmed per lot — see TDS / COA |
| Trace / impurity content | Processes sensitive to particular elements or compounds need limits stated against the parameter that matters, not a general purity claim. | Confirmed per lot — see TDS / COA |
| Moisture | Affects metering, flow and reaction behaviour, and dilutes the active content by mass. | Confirmed per lot — see TDS / COA |
| Free acid | Affects handling, corrosion and compatibility with other inputs in the process. | Confirmed per lot — see TDS / COA |
| Particle size distribution | Determines feeding behaviour and dissolution rate in continuous processes. | Confirmed per lot — see TDS / COA |
| Bulk density | Volumetric feeding and storage calculations depend on it. | Confirmed per lot — see TDS / COA |
Confirmed per lot: the values applying to your cargo are those declared on the Technical Data Sheet and Certificate of Analysis issued for the production lot shipped. We do not publish a generic industrial specification, because the requirement differs by process.
How we supply industrial buyers
Industrial orders differ from agricultural ones in packaging, documentation and sometimes in the confidentiality of the end use. Here is how we handle them.
Packaging for industrial use
Jumbo bags (FIBC) are the common format for industrial buyers, frequently specified with a particular discharge configuration, liner and safety factor for the receiving site. Bulk cargo is available for large-volume programmes where the destination can discharge loose material.
If your site has a mandatory bag specification, send it rather than assuming the default is acceptable.
Documents
The standard set — COA for the lot shipped, TDS, commercial invoice, packing list, certificate of origin and bill of lading — is issued on a per-shipment basis.
Any certification or attestation beyond that set is reviewed for each order before contract. We do not claim certifications on this website that we have not confirmed.
Consistency across shipments
For a process input, consistency between shipments usually matters more than a marginal price difference. Where you need repeat supply, tell us the parameters that must not move — those become the specification we hold the programme to.
Confidentiality
If your end use is commercially sensitive, say so. We do not publish customer names, volumes or applications on this website, and we would not publish yours.
Specifying an industrial order
Send us the following and we can give you a usable answer rather than a general one:
- The parameter that matters — and the limit you need, with the basis
- Physical form — crystalline or granular, and particle size if relevant
- Packaging — including your site's bag specification if there is one
- Quantity and frequency — a single order or a repeat programme
- Destination port and trade term — FOB, CFR or CIF
- Documents required — raise any attestation at the enquiry stage
Documents are issued on a per-shipment basis. Certification availability is confirmed for each order before contract.
Related: Quality & Documents · Ammonium Sulfate Specification Guide · Ammonium Sulfate 21-0-0-24S
Industrial ammonium sulfate requirements
Send us the specification parameter your process depends on. We will confirm what the available production can meet — in writing, before you commit.