sulfuric acid presentation for Graduate Students

Sulfuric Acid

1. Industrial chemistry Presentation topic : sulphuric acid Presented by : G hulam ali

2. Sulfuric acid (H 2 SO 4 ) is a strong acid with hygroscopic and oxidizing properties. Sulfuric Acid is a mineral acid with the chemical formula H 2 SO 4 .  It is water-soluble and releases heat when dissolved in water. It is widely used in the manufacturing of fertilizers. It is also used in chemical synthesis and wastewater processes. What is Sulfuric Acid?

3. H 2 SO 4 Sulfuric Acid Molecular Weight/ Molar Mass 98.079 g/mol Density 1.84 g/cm³ Boiling Point 337 °C Melting Point 10 °C Properties of Sulfuric Acid – H 2 SO 4

4. Sulfuric Acid Structure – H 2 SO 4

5. There are three methods for the preparation of sulphuric acid Contact process Lead chamber process What is the process of manufacture of sulphuric acid?

6. The steps involved in the manufacture of sulphuric acid by contact process are as shown: (1) Sulphur (or iron pyrites) are burnt in air to form sulphur dioxide.   S+O2​→ SO2 (2) Catalytic oxidation of sulphur dioxide to sulphur trioxide.   2SO2​+O2​V2​O5​​ 2 =SO3 ​ Δ r​Ho=−196.6kJ The reaction is reversible and exothermic. (3) Sulphur trioxide is dissolved in 98% sulphuric acid to form oleum (fuming sulphuric acid).  Contact Process for Manufacturing of Sulphuric Acid

7. SO3​+H2​SO4​→H2​S2​O7​ (4) Oleum is diluted with water to form sulphuric acid of desired concentration.     H2​S2​O7​+H2​O→2H2​SO4​             and Manufacture of H2​SO4​ by contact process involves three steps: 1. Burning of sulphur in air to generate SO2​. 2. Conversion of SO2​ to SO3​ by oxidation with air in the presence of V2​O5​ as catalyst. 3. Absorption of SO3​ in H2​SO4​ to obtain oleum  H2​S2​O7​. A flow diagram for the manufacture of H2​SO4​ is given below:  2

8. Uses of sulphuric acid

9. It is used in making fertilizers It is used in the production of steel and iron It is used in chemical manufacturing industries It is used in petroleum refining It is used to produce phosphoric acid It used as a cleaning agent in industries to remove the rust from steel and iron It is used as a catalyst to convert cyclohexanone oxime to caprolactam used to make nylon It is used in lead-acid batteries as an electrolyte It is used in making ammonium sulfate It is used in storage batteries H 2 SO 4  Uses (Sulfuric Acid)