Description
Sulphuric Acid 98% Technical Grade
Sulphuric Acid 98% Technical Grade (CAS 7664-93-9, molecular formula H2SO4) is a core commodity reagent used wherever reliable acid or alkali strength matters — from surface treatment and pH correction to downstream salt manufacture. China Chemicals supplies it at 98% min in pack sizes from 1 L through to 200 L Drum, so laboratory trial quantities and full production volumes can be sourced from the same specification.
It is also traded as Oil of Vitriol, Battery Acid, Sulfuric Acid. Every consignment ships with a batch-specific Certificate of Analysis and the current Safety Data Sheet, and material is stored and picked under stock rotation so you receive product well inside its shelf life.
Typical applications
- Fertiliser manufacture, principally phosphates
- Metal pickling and steel surface treatment
- Battery electrolyte production
- pH control and effluent neutralisation
- Petroleum refining and alkylation
Technical specification
| Chemical name | Sulphuric Acid 98% Technical Grade |
|---|---|
| Synonyms | Oil of Vitriol, Battery Acid, Sulfuric Acid |
| CAS number | 7664-93-9 |
| Molecular formula | H2SO4 |
| Appearance | Clear to slightly turbid oily liquid |
| Assay | 98.0% min |
| Iron (Fe) | 50 ppm max |
| Chloride | 10 ppm max |
| Colour | Clear to pale straw |
| Density at 20°C | 1.836 g/cm³ |
| Residue on ignition | 0.02% max |
Values above are typical and are confirmed on the Certificate of Analysis issued against each batch. Tighter specifications can be quoted where a process requires them.
Packaging and supply
Available in 1 L, 5 L, 25 L, 200 L Drum. Bulk, road tanker and export drum quantities are quoted on request, including FOB and CIF terms for international shipment. Pricing shown is per pack in USD, exclusive of freight and any applicable duties.
Handling and safety
Transport classification: UN1830. Confirm the proper shipping name, hazard class and packing group against the current SDS and transport documents before shipping. Primary health hazard: Corrosive, Class 8. Store in the original closed container in a cool, well-ventilated area away from incompatible materials, and handle using appropriate personal protective equipment. Read the Safety Data Sheet in full before use — it is issued with every order and is available on request before purchase.
Supply to industry only. Products are sold for legitimate industrial, laboratory and manufacturing use. We may request end-use details and business registration before releasing an order.
What Is Sulphuric Acid 98%?
Sulphuric acid (H2SO4, oil of vitriol) is a dense, oily, colourless to pale-straw liquid and one of the most important industrial chemicals in the world. At 98% concentration it is a strong mineral acid and a powerful dehydrating agent, miscible with water in all proportions. This technical grade is supplied at 98.0% minimum assay with low iron and chloride, which suits it to a wide range of industrial processes. Its density of about 1.84 g/cm³ makes it far heavier than water.
Applications
Sulphuric acid is used across more industries than almost any other chemical. Its largest use worldwide is in fertiliser production, especially phosphate fertilisers, and it is a key reagent in mineral processing and metal pickling, where it removes oxide scale from steel.
It is also used in lead-acid battery electrolyte, in the manufacture of other acids and chemicals, in wastewater pH control and effluent treatment, in oil refining, and in the production of detergents, dyes and pigments. For pH adjustment and acidulation it is often chosen over organic acids such as Glacial Acetic Acid where a strong, low-cost mineral acid is needed.
Critical Safety Information
Sulphuric acid 98% is severely corrosive. It causes severe burns to skin and eyes on contact and serious damage if swallowed or if mists are inhaled, and the injury can be permanent. It must be handled only with full chemical-resistant PPE, including goggles or a face shield, acid-resistant gloves, apron and boots, with eyewash and safety-shower facilities within reach before work starts.
When diluting, always add the acid slowly to water, never water to acid. Mixing releases a large amount of heat, and adding water to concentrated acid can make it boil and spatter violently. The concentrated acid also reacts dangerously with many metals to release flammable hydrogen gas, and reacts violently with water-reactive and organic materials. Store sulphuric acid in suitable corrosion-resistant containers inside secondary containment, away from bases, metals and organics, and follow the current Safety Data Sheet and local rules for transport and disposal.
Frequently Asked Questions
What is sulphuric acid used for?
Its biggest use is fertiliser production; it is also used in metal pickling, mineral processing, battery electrolyte, chemical manufacture, oil refining and wastewater pH control.
How do I dilute sulphuric acid safely?
Always add the acid slowly to water, never water to the acid, while stirring and controlling the temperature. Adding water to concentrated acid can cause violent boiling and spattering.
Is sulphuric acid dangerous?
Yes. It is severely corrosive and causes severe burns to skin and eyes, serious harm if swallowed or inhaled as mist, and it reacts with many metals to release flammable hydrogen. Full PPE and emergency facilities are essential.
Why does the iron and chloride content matter?
Low iron and chloride are quality markers for many processes, since these impurities can cause staining, corrosion or interference in sensitive applications.
What packaging and order quantities are available?
We supply sulphuric acid from trial quantities through to full bulk orders in suitable corrosion-resistant packaging. Contact us with your required volume for current pricing and lead time.
For further independent reference, see the Wikipedia entry on sulfuric acid, and browse our full Acids, Bases & Salts range.
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