About

Sulphuric acid (HSO) is one of the most important and widely used industrial chemicals.

 Basic Properties

• Chemical formula: HSO

• Appearance: Colorless, oily (viscous) liquid

• Nature: Strong acid (highly corrosive)

• Density: Heavier than water

• Boiling point: ~337C

Key Characteristics

• Strong acid: Completely ionizes in water

• Dehydrating agent: Removes water from substances (e.g., turns sugar black by removing water)

• Oxidizing agent: Especially when concentrated and hot

• Highly exothermic with water: Mixing releases a lot of heat

 Important rule:
Always add acid to water, never water to acid (to prevent splashing and burns).

 Uses

• Manufacture of fertilizers (e.g., superphosphate, ammonium sulfate)

• Production of detergents, dyes, and explosives

• Petroleum refining

• Lead-acid batteries (car batteries)

• Metal processing (cleaning and pickling)

Safety

• Causes severe burns on contact

• Harmful if inhaled or ingested

• Requires protective equipment (gloves, goggles)