Industrial use:

Used in metallurgical industry and metal processing in the metallurgical industry sector, especially the production of non-ferrous metals need to use sulfuric acid. Used in the petroleum industry petrol, lubricating oil and other petroleum products in the production process, all need concentrated sulfuric acid refining, in order to remove the sulfur-containing compounds and unsaturated hydrocarbons.

In the concentration of nitric acid, concentrated sulfuric acid as a dehydrating agent; chlor-alkali industry, concentrated sulfuric acid to dry chlorine gas, hydrogen chloride gas, etc.; inorganic salt industry, such as cryolite, borax, trisodium phosphate, disodium hydrogen phosphate, lead sulphate (, zinc sulphate, copper sulphate, ferrous sulphate, as well as other sulphate preparations are required to use sulfuric acid. Many inorganic acids such as phosphoric acid, boric acid, chromic acid (sometimes also referred to as CrO3), hydrofluoric acid, chlorosulfonic acid; organic acids such as oxalic acid, acetic acid and other preparations, also often need sulfuric acid as raw materials. In addition, the coking chemical industry (with sulfuric acid to work with ammonia in the coke oven gas by-production of ammonium sulfate), electroplating industry, tanning industry, pigment industry, rubber industry, paper industry, paint industry (preparation of organic solvents), industrial explosives and lead battery manufacturing, etc., are consuming a considerable amount of sulfuric acid.

It can be used as a softener for hard water, ion exchange regenerator, pH adjuster, oxidising agent and detergent. It can also be used in the manufacture of fertilisers, pesticides, dyes, pigments, plastics, chemical fibres, explosives and various sulphates. It is widely used in the refining of petroleum, smelting of non-ferrous metals, pickling treatment of iron and steel, tanning process, as well as coking industry, light textile industry, and defence and military industry. Strong acidic cleaning corrosive agent. Mainly used for silicon wafer cleaning in integrated circuit manufacturing process.

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