To buy sulphuric acid, Concentrated sulphuric acid, sulphuric acid

H2SO4 sulphuric acid — the strong dibasic acid answering to the highest oxidation level of sulfur (+6). At usual conditions concentrated sulphuric acid — heavy oily liquid without color and smell, with acid "copper" taste. In equipment sulphuric acid call its mixes both with water, and with SO3 sulphuric anhydride

Sulphuric acid is applied:

• in production of mineral fertilizers;
• as electrolyte in lead accumulators;
• for receiving different mineral acids and salts;
• in production of chemical fibers, dyes, smoke-generating and explosive substances;
• in oil, metalworking, textile, tanning, etc. industries;
• in the food industry — it is registered as food dobavkiye513 (emulsifier);
• in industrial organic synthesis in reactions:
  • dehydrations (receiving diethyl ether, esters);
  • hydrations (ethanol from ethylene);
  • sulphonations (synthetic detergents and intermediate products in production of dyes);
  • alkylations (receiving isooctane, polyethyleneglycol, caprolactam), etc.
  • For recovery of pitches in filters on production of distilled water.

World production of sulphuric acid apprx. 160 million tons per year. The largest consumer of sulphuric acid — production of mineral fertilizers. On 1 t of P₂O ₅ phosphoric fertilizers 2,2-3,4 t of sulphuric acid, and are spent for 1 t (NH ₄) ₂ by SO ₄ — 0,75 t of sulphuric acid. Therefore vitriol plants aim to build in complex with plants on production of mineral fertilizers.

The industry applies two methods of oxidation of SO2 in production of sulphuric acid: contact — with use of firm catalysts (contacts), and nitrose (tower) — with nitrogen oxides. The contact way forces out nitrose.