Sulphur Powder (Micronized)

Micronized 200–325 mesh for agriculture & rubber

Sulphur powder is elemental sulphur milled to a controlled particle size, and unlike the bulk forms it is bought on fineness rather than on handling. Mesh is the governing number: 200 mesh (about 74 microns) is the general agricultural and industrial grade, 300 and 325 mesh (roughly 45–48 microns) are the fine grades demanded where surface area drives performance, and true micronized product runs finer still. Fineness is not vanity — for a fungicidal dust or a wettable powder the sulphur works by sublimation and contact at the leaf surface, so smaller particles mean more surface area, better coverage per kilogram applied and better suspension in a spray tank. In rubber compounding, the same fineness governs how evenly the sulphur disperses through the polymer and therefore how uniformly the batch cures. Purity runs 99.5–99.9% with moisture ≤ 0.5%, ash ≤ 0.1%, acidity ≤ 0.02% and a residue on the nominated mesh that is the real acceptance test on delivery.

You buy powder rather than granular, prilled or lump when the sulphur is applied as a solid and never melted — orchard and vineyard dusting against powdery mildew, wettable-powder and water-dispersible formulations, soil amendment on alkaline ground where sulphur is used to pull pH down, rubber and tyre compounding, and as a raw material into agrochemical formulation and specialty chemicals. It is emphatically not the product for an acid plant: you would be paying a milling premium for material you are about to melt, and handling a dust hazard for no reason. The practical caution with powder is exactly that dust — fine sulphur is readily ignitable and static-prone, so it is packed in lined PP bags, kept dry, and handled with earthing and dust control at the point of use. CBIL supplies micronized sulphur at nominated mesh against COA and SGS verification of purity, mesh residue, moisture, ash and acidity, in 25 kg and 50 kg bags and 1 MT jumbo bags on FOB, CFR and CIF terms — tell us the mesh your formulation calls for rather than asking for powder generically, because the grades are not interchangeable.