Sulfuric Acid

Sulfuric Acid
Sulfuric Acid

Deliver Terms: FCA, FOB, CIF, CFR, DAP, DDU, DDP Based on customer’s inquiry

Customization: Customized logo, Graphic customization, Customized packaging

Packaging: 220 Lit HDPE drums

Min Order: 20 Tons

Alternative (Trade) Names: Oil of vitriol, Hydrogen Sulfate

Physical and Chemical Properties

Molecular Formula: H2SO4
Molar Mass: 98/078 g/mol
Appearance: Clear liquid
Odor: Odorless
Density: 1.84 g cm − 3 liquid
Melting Point: 10 °C
Welding Temperature: 290 °C
Solubility in water: Soluble
Freezing Temperature: 5/10°C
PH: 0.5


Sulfuric Acid is a mineral acid composed of sulfur, Oxygen and Hydrogen. Sulfuric Acid is a very strong Acid that dissolves in water at any percentage. It contains polar molecules that can form hydrogen bonds with each other. It is a liquid with a high boiling point and is also a viscous liquid. These molecular conditions cause Sulfuric acid to dissolve well in water and produce various acidic solutions. Sulfuric Acid is a very strong mineral acid that occurs naturally in volcanic gases. It’s reaction with water is highly exothermic, so the sudden addition of water should be avoided.

Sulfuric Acid production

The process of producing Sulfuric Acid begins with the extraction of sulfur. In the next step, Sulfur is converted to Sulfur Dioxide. Sulfur Dioxide is then converted to Sulfur Trioxide, and finally Sulfuric Acid is produced.

There are two main industrial methods for production of Sulfuric Acid, first one is the Contact Process and the other is the Wet Sulfuric Acid Process. There are other methods for producing Sulfuric Acid, which are used in some smaller industries.


Drilling Fluids
Drilling Fluids

Sulfuric Acid application

Sulfuric Acid applications are mainly industrial. Large amounts of the Sulfuric Acid is used to produce Phosphoric Acid and to make chemical fertilizers. It is also used to produce Ammonium Sulfate, which is a very important fertilizer. Other uses for this acid include Hydrogen production. Sulfuric Acid is also used in the steel and metallurgy industries, production of pigments, chemical industry and production of explosives (TNT).

It is widely used in metal processing, for example in the production of Copper and Zinc, and for cleaning surfaces. Sulfuric Acid is also used to make food cans. In domestic applications, it can be used for oil cleaning and opening pipes. This acid is also one of the raw materials for equipping any chemical laboratory and mineral processing.

Industrial applications of Sulfuric Acid

Sulfuric Acid is the most common chemical in the world which is used in almost all industries. Some of the industrial applications of Sulfuric Acid are as follows:

  • In the paper industry: production of cardboard boxes, rolls and paper napkins, newspapers and magazines
  • In the process of Nitrogenation : production of Nitroglycerin
  • In oil drilling industry: in order to acidify oil wells
  • Used in the production of battery electrolyte solution
  • In the leather industry: to remove impurities
  • In the production of detergents: as a solvent for lipids and fats
  • Application in chemical industries such as antifreeze production, pharmaceutical industry, aluminum reduction
  • Application in various chemical processes and reactions such as metal extraction, wastewater treatment and chemical synthesis

Application of Sulfuric acid in agriculture

As mentioned, Sulfuric Acid is the most important chemical in the world. A significant part of Sulfuric Acid is used in the production of chemical fertilizers. Sulfuric Acid is used to produce Ammonium Sulfate fertilizer, which is suitable for compensating for Sulfur in the soil. When Sulfuric Acid is added to the soil, it definitely reacts with the Lime in the soil, so it neutralizes it. The main reason this substance is used to produce fertilizer is that it reacts with carbonates in the soil, which causes the production of Hydrated Calcium Sulfate, also called agricultural gypsum. It also produces Magnesium Sulfate. Sulfuric Acid has 98% of its benefits for agriculture, helping to reduce the alkalinity of soils and water. If this material is used regularly for soils, it will cause proper soil aeration and increase soil permeability. Sulfuric Acid actually acts as a strong chemical fertilizer and solves the problems of clay soils to some extent.

Safety tips

Sulfuric acid safety

The transport of Sulfuric Acid must be carried out with special safety measures because it is dangerous. Sulfuric Acid should be transported in well-sealed tanks and their lids should be tightly closed so that they do not leak into the outside space. If the tank containing Sulfuric Acid leaks, it should be neutralized with Lime and then the residue must be washed with water. Washing Sulfuric Acid with water before neutralizing, should be strictly avoided. This substance is highly corrosive and is much more corrosive at high concentrations. When diluted, it dissolves in water in any proportion, but in concentrated form, pouring water on it is so dangerous that it sprays acid around and even explodes. Pouring Sulfuric Acid on metals also emits hydrogen gas, which is very dangerous.

Storage of Sulfuric acid

For storage of Sulfuric Acid, two-layer plastic tanks are usually used under special conditions. These tanks, clamps and fittings are made of polyethylene or polyvinyl chloride, which is made of polypropylene monomer materials for sealing them. The material of the Acid tank should be made of stainless steel so that it does not react with acid and is not corroded by acid. Tanks where Sulfuric Acid is stored must be labeled as corrosive as well as the risk of acid and hazardous substance leakage. Due to the dangerous vapors of this chemical, the place where Sulfuric Acid is stored must be well ventilated.


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