Sulfuric acid (H 2SO 4) is a basic raw material used in a wide range of industrial processes and manufacturing operations. Sulfuric acid is manufactured in large quantities on a world scale with the production of the chemical often being linked to the stage of development of a country, owing to the large number of transformation processes in which it is used. Sometimes, the acid may be sold as a dark brown liquid (dye added during production) to alert purchases the hazards of handling this acid. Sulfuric acid (H 2SO 4) (the historical name oil of vitriol) is an inorganic chemical that is a highly corrosive strong mineral acid that is a pungent-ethereal, colorless to slightly yellow viscous liquid that is soluble in water at all concentrations. Speight, in Environmental Inorganic Chemistry for Engineers, 2017 3.3.15 Sulfuric Acid Prolonged or repeated ingestion is not common because the first ingestion is usually the last.ĭR.James G. It can also cause severe permanent damage to the digestive and GI tracts. Ingestion may cause systematic toxicity with acidosis, which can be fatal. The effects of ingesting sulfuric acid orally are just as bad as inhalation. Chronic inhalation is known to have caused kidney and lung damage in addition to nosebleeds, erosion of the teeth, chest pain, and bronchitis. Inhalation can also be fatal as a result of spasm, inflammation, edema of the larynx and bronchi, chemical pneumonitis, and pulmonary edema. Inhalation of H 2SO 4 may cause irritation and/or chemical burns to the respiratory tract, nose, and throat.
Exposure can occur from inhalation, ingestion, and through skin contact. Sulfuric acid is a very dangerous chemical. It is also good for removing oxidation from iron and steel, so it is used in large quantities by metal manufacturers.
In modern industry, sulfuric acid is an important commodity chemical, and is used primarily for the production of phosphoric acid. It is also one of the top 10 chemicals released (by weight) by the paper industry ( US EPA, 2009). Sulfuric acid (CASRN ), also known as hydrogen sulfate, is a highly corrosive, clear, colorless, odorless, strong mineral acid with the formula H 2SO 4. Rosenfeld, in Handbook of Pollution Prevention and Cleaner Production, 2010 Sulfuric acid The fluidized roasting furnace is used for sulfuric acid roasting in industry. Sulfuric acid roasting is applied to the treatment of copper concentrate, copper-cobalt concentrate, cobalt-sulfur concentrate and low-grade metal material. When the air volume can be the maximum value of the SO 3 in the gaseous phase, it is the most suitable volume for sulfuric acid roasting. The selective sulfuric acid roasting is carried out by controlling the temperature by the difference of sulfate stability. At the same temperature, the decomposition pressure and stability of various sulfates are different the higher the temperature, the more unstable the sulfate is, and the easier it is to decompose into oxides. The main control conditions of sulfuric acid roasting are temperature and air volume. The aim is to convert as many metallic sulfides or oxides in the material into soluble salts dissolved in water, or dilute acids, under controlled conditions. Sulfuric acid roasting and chlorination roasting are typical examples of salt roasting. En Ma, in Electronic Waste Management and Treatment Technology, 2019 3.1.6.2 Salt Roasting