Resistance Sulphuric acid

Sulphuric Acid

Sulphuric Acid 
CAS Number: 7664-93-9
Chemical Formula: H₂SO₄
Synonyms for Sulphuric Acid: Dihydrogen Tetraoxosulfate, Oil of Vitriol, E 513, Battery Acid

Resistance:
Sulphuric Acid Concentration ≤50%, +20°C = suitable, +60°C = suitable
Sulphuric Acid Concentration 80%, +20°C = suitable, +60°C = unsuitable
For alternative concentrations and temperatures, refer to our chemical resistance list.

Density of Sulphuric Acid: 1.8 kg/L at 98% concentration. Sulphuric acid has a high molar mass of 98 g/mol. Storage suitability should be verified not only based on chemical resistance but also by ensuring that the container or tank can withstand the weight of the contents.

Applications

Sulphuric acid is a highly corrosive, colorless chemical (unless colored), viscous in nature, and widely used in various manufacturing processes. Its applications include:

  • Fertilizer production
  • Metal processing (etching)
  • Bleaching in the paper industry
  • Electrolyte in lead batteries
    It is also used in dehydration processes and as a component in chemical formulations.

Storage of Sulphuric Acid

Store in tightly sealed, clearly labeled containers or tanks in a dry, cool, and well-ventilated area, away from heat sources or organic materials.

  • Storage class: Corrosive materials
  • Ensure compliance with safety measures and health protection guidelines.

Dosage/Mixing of Sulphuric Acid

Follow the recommended dosage instructions specific to your application. Overdosing may lead to hazardous reactions, while underdosing can affect efficiency.
When mixing sulphuric acid with water, always add the acid to water and never the reverse, to minimize the risk of a violent reaction and splashes (SIV rule: "Sulphuric acid Into Water").

Brands of Sulphuric Acid

Sulphuric acid is typically sold under its generic name rather than specific brand names.

Pipes for Sulphuric Acid

Pipes used for sulphuric acid may be made of PE (polyethylene), provided CPX containers or tanks are deemed suitable under given conditions, or stainless steel.

Gaskets for Sulphuric Acid

  • Viton: Suitable for all concentrations
  • EPDM: Suitable for concentrations up to 80%

Precautions for Handling Sulphuric Acid

Sulphuric acid is highly oxidizing and strongly corrosive. Handle it in accordance with safety regulations to protect health and life.

It can cause dangerous reactions when in contact with other substances.
Mixing with water produces a strongly exothermic reaction with a risk of splashes.
Contact with non-noble metals may generate hydrogen gas.