Sulfuric Acid
Sulfuric Acid
Product Specifications
| CAS Number | 7664-93-9 |
|---|---|
| Purity / Assay | 98% |
| Packaging | 35kg carboys, bulk tankers |
| Country of Origin | India |
| MOQ | 1000 kg |
| Lead Time | 5-7 days |
Industries Served & Applications
Common Applications
pH adjustment, metal processing, fertilizer production, chemical synthesis.Product Benefits
-
High Concentration (98% w/w)
Maximum commercial concentration for maximum reaction efficiency and lower logistics costs -
Low Metal Content
High-purity grades with iron content below 50 ppm for sensitive applications -
Multiple Grades Available
Technical, CP, ACS, and ultra-pure grades for diverse applications from mining to pharmaceutical -
Bulk Supply Capability
Available in tanker loads (25 MT) to IBCs and drums for smaller volume requirements -
Consistent Quality
Each batch tested per ASTM/ISO standards with full certification -
Reliable Supply Chain
Strategic sourcing from multiple producers ensures uninterrupted supply
Manufacturing Process
Sulphur Combustion
Elemental sulphur is melted, filtered, and burned in dry air at 1000-1200°C to produce sulphur dioxide (SO₂)
Catalytic Oxidation
The SO₂ gas is passed over vanadium pentoxide (V₂O₅) catalyst beds at 420-450°C in a multi-pass converter. SO₂ is oxidised to SO₃ with 99.5%+ conversion efficiency
Gas Cooling
The SO₃ gas is cooled through a series of heat exchangers, generating high-pressure steam which is recovered for power generation
Absorption
The cooled SO₃ gas is passed through a packed absorption tower where it is absorbed in recirculating 98-99% sulphuric acid. The absorption heat is removed by external coolers
Oleum Production (Optional)
For oleum (fuming sulphuric acid), SO₃ is absorbed directly into sulphuric acid to achieve the desired free SO₃ content
Concentration Adjustment
The product acid is diluted or concentrated to the target strength (typically 98% w/w) by controlled water addition or blending
QC Testing
Each batch is tested for assay (titration), specific gravity, iron content, heavy metals, chloride, and colour
Storage & Dispatch
Stored in stainless-steel or lined carbon steel tanks. Dispatched in dedicated tankers, stainless-steel IBCs, or HDPE drums
Why Choose Zentish Exim for Sulfuric Acid
Uncompromising Quality
Each batch analysed to meet ASTM E223 / IS 266 specifications with full traceability
Multiple Grades
Technical, CP, ACS, Battery, and Food Grade available from a single source
Reliable Supply
Multiple production partnerships ensure supply continuity even during plant shutdowns
Safety First
Full safety documentation, handling training support, and spill response guidance provided to all customers
Cost-Effective Logistics
Bulk tanker deliveries optimised for minimum freight cost with flexible scheduling
Frequently Asked Questions
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