Sulfur Products & Solutions
Product overview
Sulfur is an important raw material used in agricultural fertilizers and various industrial applications. Alzak offers six sulfur-related products in different physical forms and compositions: elemental sulfur granules, sulfur-coated urea, sulfur bentonite, micronized sulfur powder, sulfur pastilles, and lump sulfur. Each product has its own technical specifications, physical characteristics, and applications.

Granular Sulfur
99.95% minimum purity
Granular Sulfur (S) is a high-purity elemental sulfur product supplied in hard, bright-yellow granules. It is a source of the essential nutrient sulfur, supporting protein synthesis, oil content, and nutrient uptake, and helps lower soil pH in alkaline soils. It is also used in the manufacture of sulfuric acid and fertilizer blends.
| Parameter | Specification |
|---|---|
| Form / Color | Granular, bright yellow |
| Purity (S, dry basis) | 99.95% min |
| Ash Content | ≤ 0.05% |
| Moisture | ≤ 0.5% |
| Acidity (as H₂SO₄) | ≤ 0.02% |
| Carbon Content | ≤ 0.03% |
| Granule Size | 2–6 mm |
| Arsenic, Selenium, Tellurium & Lead | Nil |
| Mechanical Impurities (Paper, Wood, Sand) | Nil (not permitted) |
| Packing | 50 kg bags / 1 MT jumbo bags / bulk |

Sulfur Coated Urea (SCU)
36% N | 15% S
Sulfur Coated Urea (SCU) is a granular urea fertilizer coated with a layer of elemental sulfur. The coating slows the release of nitrogen, reducing losses and extending feeding time, while also supplying sulfur to the crop.
| Parameter | Specification |
|---|---|
| Nitrogen Content (N) | 36% |
| Sulfur (S) | 15% |
| Additive | 5% |
| Moisture | 0.5% |
| Main Size (2–4 mm) | 92% |
| Arsenic, Selenium, Tellurium & Lead | Nil |
| Mechanical Impurities (Paper, Wood, Sand) | Nil (not permitted) |
| Packing | 50 kg bags / 1 MT jumbo bags / bulk |

Sulfur Bentonite
85–91% sulfur content
Sulfur Bentonite combines elemental sulfur with bentonite clay in a pastille (half-sphere) form. On contact with soil moisture, the bentonite swells and breaks the pastilles into fine particles, allowing sulfur to be oxidized into plant-available sulfate for crops and for lowering soil pH.
| Parameter | Specification |
|---|---|
| Form / Color | Pastille (half sphere), yellow-green earth tone |
| Sulfur Content | 85–91% |
| Bentonite Content | 9–15% |
| Moisture Content | 0.5% max |
| Size | 75% min between 2 and 5 mm |
| Fines (<0.3 mm) | <1% |
| Arsenic, Selenium, Tellurium & Lead | Nil |
| Mechanical Impurities (Paper, Wood, Sand) | Nil (not permitted) |
| Packing | 50 kg bags / 1 MT jumbo bags / bulk |

Micronized Sulfur Powder
99.8% minimum purity
Micronized Sulfur Powder (S) is a fine, light-yellow elemental sulfur product milled to the mesh grade required by the customer. Its fine particle size gives fast dispersion and reactivity, making it widely used in agriculture, rubber vulcanization, and chemical manufacturing.
| Parameter | Specification |
|---|---|
| Form / Color | Micronized powder, light yellow |
| Purity (S) | 99.8% min |
| Ash Content | ≤ 0.06% |
| Organic Matter | ≤ 0.07% |
| Moisture | ≤ 0.4% |
| Mesh Size | Grade 200–500 (per order) |
| Arsenic, Selenium, Tellurium & Lead | Nil |
| Mechanical Impurities (Paper, Wood, Sand) | Nil (not permitted) |
| Packing | 50 kg bags / 1 MT jumbo bags / bulk |

Sulfur Pastilles
99.50% minimum purity
Sulfur Pastilles are yellow, uniform pastilles with a typical particle size of 2–6 mm. The product is supplied in bulk or 1 MT jumbo bags.
| Parameter | Specification |
|---|---|
| Product | Sulfur Pastilles |
| Sulfur (S) | 99.50% min. |
| Moisture | 0.50% max. |
| Ash Content | 0.10% max. |
| Acidity (as H₂SO₄) | 0.02% max. |
| Organic Matter | 0.10% max. |
| Appearance | Yellow, uniform pastilles |
| Particle Size | Typically 2–6 mm |
| Packaging | Bulk / Jumbo Bags 1 MT |

Lump Sulfur
99.50% minimum purity
Lump Sulfur is supplied as yellow solid lumps, with a typical lump size of 10–100 mm. The product is available in bulk or 1 MT jumbo bags.
| Parameter | Specification |
|---|---|
| Product | Lump Sulfur |
| Sulfur (S) | 99.50% min. |
| Moisture | 0.50% max. |
| Ash Content | 0.10% max. |
| Acidity (as H₂SO₄) | 0.02% max. |
| Organic Matter | 0.10% max. |
| Appearance | Yellow solid lumps |
| Lump Size | Typically 10–100 mm |
| Packaging | Bulk / Jumbo Bags 1 MT |
Storage & handling
Store away from heat, sparks and ignition sources. Protect from moisture and dust. Keep sealed in a well-ventilated area and avoid contact with acids and alkalis.
H₂S precaution
The supplied technical data sheets identify traces of hydrogen sulfide (H₂S) in Granular Sulfur, Sulfur Bentonite, Micronized Sulfur Powder, Sulfur Pastilles, and Lump Sulfur. Avoid dust generation when handling these products.