sulphur dioxide
Definition
Noun: - A colorless, toxic gas with the chemical formula SO₂. It occurs naturally in volcanic emissions and is produced industrially from burning fossil fuels containing sulfur. It is a major air pollutant that contributes to acid rain formation.
Usage
- Used as a noun to refer to the specific chemical compound.
- Commonly discussed in contexts of environmental science, industrial processes, and pollution.
Examples
- Noun:
- The volcano released large quantities of sulphur dioxide into the atmosphere.
- Regulations aim to reduce sulphur dioxide emissions from power plants.
- Acid rain is caused by pollutants like sulphur dioxide and nitrogen oxides.
Advanced Usage
- "Sulphur dioxide scrubbing": Refers to the industrial process of removing sulphur dioxide from exhaust flue gases.
- The factory installed new scrubbers for sulphur dioxide removal.
- "Sulphur dioxide levels": Used when measuring or discussing atmospheric concentration.
- Scientists are monitoring sulphur dioxide levels near the industrial zone.
Variants and Related Words
- Sulfur dioxide: The American English spelling variant.
- SO₂: The standard chemical formula abbreviation.
- Sulfite: (Noun) A salt or ester of sulfurous acid, often related in chemical contexts involving sulphur dioxide.
Synonyms
- SO₂ gas: A direct synonym using its chemical formula.
- Sulfurous anhydride: A less common technical name.
Notes on Different Meanings
This term has a single, specific scientific/environmental meaning as defined. It is not typically used in idiomatic expressions or as a phrasal verb.
Noun
-
a colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions; causes acid rain
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