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sulfur dioxide

noun, Chemistry
a colorless, nonflammable, water-soluble, suffocating gas, SO 2 , formed when sulfur burns: used chiefly in the manufacture of chemicals such as sulfuric acid, in preserving fruits and vegetables, and in bleaching, disinfecting, and fumigating.
Origin of sulfur dioxide
1865-70 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for sulfur dioxide
  • sulfur dioxide and closely related chemicals are known primarily as a cause of acid rain.
  • Likewise, acid rain from sulfur dioxide pollution has destroyed much of the vegetation in the area.
  • sulfur dioxide combines with water vapor to form sulfuric acid particles that scatter, reflect, and absorb sunlight.
  • Renewable diesel also creates far fewer sulfur dioxide, particulate, and nitrogen oxide emissions.
  • Ash and sulfur dioxide spread through the atmosphere.
  • sulfur dioxide plumes were no longer detected in satellite imagery.
  • sulfur dioxide turns into sulfuric acid which is hazardous to health.
  • It spurred a revolution in sulfur dioxide scrubbing technologies.
  • sulfur dioxide poisoning and excess heat caused scores of thousands of deaths.
  • sulfur dioxide is a pollutant that helps produce acid rain.
sulfur dioxide in Science
sulfur dioxide  
A colorless, poisonous gas or liquid with a strong odor. It is formed naturally by volcanic activity, and is a waste gas produced by burning coal and oil and by many industrial processes, such as smelting. It is also a hazardous air pollutant and a major contributor to acid rain. Chemical formula: SO2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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