Sulfuric acid

Our factory supplies sulfuric acid with full-range concentrations and electronic grade products. All products adopt mature production technology, all physical and chemical indexes comply with national standards and export inspection requirements. Various concentrations can meet demands of metal processing, mineral metallurgy, electronic manufacturing, chemical synthesis and water treatment. Stable supply and customized specifications are available.

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Basic information

Molecular formula	H₂SO₄	Molecular weight	98.08
Product standard	GB/T 534-2023

Quality indicator

Product type	Main content	Special requirements
Concentrated sulfuric acid (Class I)	H₂SO₄ ≥ 98.0%	-
Fuming sulfuric acid	FreeSO₃ ≥ 20.0%	20% Specification (free SO3 20.0-50.0%)
Heavy metal limit	As ≤ 0.0001%，Pb ≤ 0.001%

Nature & purpose

Chemical properties: Strong acid (pKa=-3, Ka=10 ³), strong oxidant, strong dehydrating agent

Physical properties: Colorless transparent oily liquid, boiling point 337 ° C, density approximately 1.84 g/cm ³

Main uses: phosphate fertilizer production, crude oil refining, non-ferrous metal smelting, medicine, battery (electrolyte), rust remover

Storage and transportation requirements

Dangerous goods grade: Grade 8 dangerous goods (highly corrosive)

Storage containers: carbon steel storage tanks, lead tanks, special alloy or plastic containers (lead containers are prohibited from storing dilute sulfuric acid)

Precautions: Keep the container sealed, heat-resistant and fire-resistant, prohibit co storage and transportation with reducing agents/metal powders/alkalis/combustibles

Precautions

• Operators are required to wear protective clothing, goggles, and acid resistant gloves

• Immediately rinse with plenty of water upon contact with the skin, and seek medical attention in severe cases

• Neutralize with sand/lime in case of leakage, do not rinse directly with water

• Keep away from combustibles and oxidants, avoid impact and vibration

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