FSiix Resources sources and trades industrial Sulphuric Acid (H₂SO₄) produced by the Contact Process — catalytic oxidation of sulphur dioxide to sulphur trioxide over a vanadium pentoxide (V₂O₅) catalyst, absorbed to form oleum and diluted to finished acid. Supplied from certified Indian production in 98% commercial grade, 98% battery grade, and 70% dilute grade, our sulphuric acid meets IS 266 and international specifications for fertiliser manufacturing, metal pickling and processing, chemical synthesis, and battery electrolyte production, and moves under corrosive-cargo-compliant packing and transport worldwide.
FSiix's sulphuric acid programme draws on certified Indian Contact Process manufacturing to supply 98% commercial grade, 98% battery grade, and 70% dilute grade from a single, audited source. As the highest-tonnage industrial chemical produced worldwide, sulphuric acid underpins fertiliser, metal processing, and chemical manufacturing value chains at a scale few other commodities match.
The 98% commercial grade is the standard feedstock for phosphate fertiliser and industrial chemical production, while the 98% battery grade meets the tighter iron, arsenic, and residue-on-ignition limits required for lead-acid battery electrolyte. FSiix supplies every grade against IS 266 and buyer-specified assay limits, backed by batch certificates of analysis and corrosive-cargo-compliant packing for safe handling from loading to destination.
FSiix's sulphuric acid supply runs under continuous catalytic production and batch-certified quality control, from sulphur burning through to the graded, export-ready acid.
Molten sulphur (or roasted metal sulphide ore) is burned in dry air to produce sulphur dioxide (SO₂) gas. The gas is cleaned and cooled before proceeding to catalytic conversion, removing dust and moisture that would otherwise poison the downstream catalyst.
Sulphur dioxide is passed over a vanadium pentoxide (V₂O₅) catalyst bed at 400–450°C across multiple stages, converting it to sulphur trioxide (SO₃) at better than 99.5% conversion efficiency, with intermediate cooling between passes to maximise yield.
Sulphur trioxide is absorbed into concentrated sulphuric acid to form oleum, then diluted with water to the target concentration — 98% commercial, 98% battery, or 70% dilute. Every batch is assayed for H₂SO₄ content, specific gravity, and impurity limits against IS 266 before certification and dispatch.
FSiix's sulphuric acid supplies fertiliser producers, metal processors, and chemical manufacturers — matched to the grade each process calls for, from 70% dilute acid to 98% battery grade.
98% commercial, 98% battery, and 70% dilute grades from one certified Indian source mean customers can match the exact purity and impurity tolerance their process requires without splitting orders across suppliers.
Every batch is assayed for H₂SO₄ assay, specific gravity, and trace-metal limits (iron, arsenic, lead) against IS 266 and buyer specifications, with certificates of analysis issued ahead of shipment.
Packing and transport are handled to UN 1830 corrosive-cargo requirements, with HM-HDPE carboys, drums, IBCs, and ISO tank or bulk tanker options suited to each concentration.
Global sulphuric acid production exceeds 260 million tonnes a year, more than any other manufactured chemical, with India among the largest producers and consumers on the back of its phosphate fertiliser industry, alongside steady demand from metal processing, battery manufacturing, and chemical synthesis.
Sulphuric acid pricing moves with sulphur feedstock costs, grade, and packing format, and varies meaningfully between 70% dilute acid and 98% battery grade, so we don't publish a static reference price here — anything printed on a page would likely be stale within days.
Contact our trading desk for a current FOB quotation against your required grade, volume, packing preference, and destination port.
Tell us your required grade, volume, packing preference, and destination port, and the FSiix trading desk will respond with sourcing options and current pricing.