Sulphuric acid; oleum

HS code 280700 covers the production and trade of sulphuric acid and oleum, which are essential chemicals in a wide range of industries. Sulphuric acid is one of the most widely produced industrial chemicals globally, with applications spanning from fertilizer production to metal processing. As a key component in many manufacturing processes, the sulphuric acid industry plays a vital role in supporting economic growth and development across various sectors.

The primary production method for sulphuric acid is the contact process, which involves the oxidation of elemental sulfur or sulfur-containing compounds, such as hydrogen sulfide, to produce sulfur dioxide. The sulfur dioxide is then further oxidized to sulfur trioxide, which is subsequently dissolved in water to form sulphuric acid. This process is highly efficient and allows for the continuous production of large quantities of sulphuric acid to meet global demand.

The main inputs required for the production of sulphuric acid include elemental sulfur, sulfur-containing compounds, air, and water. Additionally, the process requires specialized equipment such as reaction vessels, heat exchangers, and catalysts to facilitate the chemical reactions. The availability and cost of these raw materials and production resources can significantly impact the overall competitiveness of the sulphuric acid industry.

The primary output of HS code 280700 is sulphuric acid, which is widely used as a chemical reagent and an intermediate in the production of various other chemicals and materials. Some of the key industries that consume sulphuric acid include 310000 Fertilizers, 280000 Inorganic chemicals, and 240000 Tobacco and manufactured tobacco substitutes. Additionally, oleum, a concentrated form of sulphuric acid, is also produced and traded under this code.