Sulfur dioxide

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Sulfur Dioxide

Sulfur dioxide (pronounced: /ˈsʌlfər daɪˈɒksaɪd/) is a chemical compound with the formula SO2. It is a toxic gas with a pungent, irritating smell, released by volcanoes and in various industrial processes.

Etymology

The term "sulfur dioxide" is derived from the Latin word 'sulphur', meaning 'brimstone', and the Greek word 'dioxide', meaning 'two oxygen'.

Chemical Properties

Sulfur dioxide is a bent molecule with polar covalent bonds between one sulfur atom and two oxygen atoms. It is a colorless gas under normal conditions but can condense into a bright yellow solid at cold temperatures.

Uses

Sulfur dioxide is used in a variety of industrial applications, including the production of sulfuric acid, a key component in the manufacture of fertilizers. It is also used as a preservative in dried fruits and as a reducing agent in winemaking.

Health Effects

Exposure to sulfur dioxide can cause a range of health effects, including respiratory problems and allergic reactions. It is considered a major air pollutant and is regulated by environmental protection agencies worldwide.

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