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Sulfuric acid and the Contact process

Inorganic chemistry and industrial processes · Lesson 5 of 5

Lesson 5 of 5

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Lesson 5 of 5 · Inorganic chemistry and industrial processes

Sulfuric acid and the Contact process

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By the end you’ll be able to

describe sulfuric acid as a major industrial chemical and state important uses such as manufacture of fertilisers, detergents, paints, dyes and chemicals where specified
describe the Contact process as the manufacture of sulfuric acid from sulfur or sulfide ores via sulfur dioxide and sulfur trioxide

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write balanced symbol equations for the main stages of the Contact process, including the formation of sulfur dioxide, the reversible oxidation of sulfur dioxide to sulfur trioxide, and the conversion to sulfuric acid

explain the role of the catalyst and the effect of temperature and pressure on the reversible stage $$\mathrm{2SO_2 + O_2 \rightleftharpoons 2SO_3}$$ and justify the compromise conditions used in industry

sequence the industrial steps accurately, including absorption of sulfur trioxide before formation of concentrated sulfuric acid where this is required by the specification

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