Sulfuric Acid

Sulfuric acid is a highly corrosive strong mineral acid . It is a pungent-ethereal, colorless to slightly yellow viscous liquid which is soluble in water at all concentrations.It is used in fertilizers, chemicals, dyes, petroleum refining, etching and in making iron, steel and industrial explosives.

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Detailed Description for Sulfuric Acid

Sulfuric acid , also spelled Sulphuric acid, sometimes called Oil Of Vitriol, or Hydrogen Sulfate battery acid, is a dense, colourless, oily, corrosive liquid; more sulfuric acid is produced than any other chemical. It has widely varied uses and plays some part in the production of nearly all manufactured goods.

Dilute solutions of sulfuric acid show all the behavior characteristics of acids. It turns blue litmus red. It conducts electricity, neutralizes alkalies, corrodes active many metals, releasing hydrogen gas, and forming the sulfates. It reacts with most hydroxides and oxides, with some carbonates and sulfides, and with some salts.

Concentrated sulfuric acid, formerly called oil of vitriol, is a weak acid and a poor electrolyte because relatively little of it is dissociated into ions. When concentrated sulfuric acid is heated, it behaves also as an oxidizing agent dissolving relatively unreactive metals as copper, mercury, and lead to produce metal sulfate, sulfur dioxide, and water. 

Applications:

It is used in fertilizers, chemicals, dyes, petroleum refining, etching and in making iron, steel and industrial explosives.

The major use for sulfuric acid is in the "wet method" for the production of phosphoric acid, used for manufacture of phosphate fertilizers.

Sulfuric acid is used in large quantities by the iron and steelmaking industry to remove oxidation, rust and scaling from rolled sheet and billets prior to sale to the automobile and major appliances industry.

Sulfuric acid is used for a variety of other purposes in the chemical industry. For example, it is the usual acid catalyst for the conversion of cyclohexanone oxime to caprolactam, used for making nylon. It is used for making hydrochloric acid from salt via the Mannheim process. Much H2SO4 is used in petroleum refining, for example as a catalyst for the reaction of isobutane with isobutylene to give isooctane, a compound that raises the octane rating of gasoline (petrol).

 


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