sulfur dioxide


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sulfur dioxide

n.
A colorless, extremely irritating gas or liquid, SO2, used in many industrial processes, especially in the manufacture of sulfuric acid, and as a preservative, disinfectant, and bleach. It is also a hazardous pollutant resulting from burning fossil fuels and refining sulfide-containing ores.

sul′fur diox′ide



n.
a colorless, nonflammable, water-soluble, suffocating gas, SO2, 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.
[1865–70]

sulfur dioxide

A colorless, poisonous gas or liquid, SO2, that has 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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sulfur dioxide - 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
dioxide - an oxide containing two atoms of oxygen in the molecule
pollutant - waste matter that contaminates the water or air or soil
gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Translations
dióxido de azufre
rikkidioksidi
diossido di zolfo
二酸化硫黄
zwaveldioxide
svaveldioxid
References in periodicals archive ?
This action on sulfur dioxide is the third of four rounds of final designations.
In 2015 there was 900ppm of sulfur dioxide in aviation fuel at Songshan Airport and this year levels fell to 520ppm, a decrease of 42 percent.
com/articles/s41598-017-14639-8) Scientific Reports last week and details the satellite data that show emissions of sulfur dioxide in China are down 75 percent from levels in 2007, while emissions in India are up 50%.
Sulfur dioxide emissions are among the most common pollutants into the air globally, with power plants emitting the most sulfur dioxide.
Just as it is with any of the other tools and techniques a vintner may use, the addition of sulfur dioxide works best when enough is added at the proper time to accomplish the desired result without adding too much and adversely affecting wine quality.
in this particular case, sulfur dioxide during an active division of Thiobacillus microorganisms).
A researchers' team from King Abdulaziz City for Science and Technology (KASCT) has devised an innovative technology to reduce emissions of harmful sulfur dioxide and nitrogen oxides resulting from oil refineries to rates of up to 98 per cent and 82 per cent.
An investigation by the department found that the concentration of hydrogen in the landfill gas exceeded approved limits and that the BFI-Fall River Landfill had exceeded approved sulfur dioxide emission limits in their permit.
The current scope of major pollutants includes sulfur dioxide and chemical oxygen demand (COD), a gauge of water pollution.
The sulfuric acid in volcanic aerosols is the result of not one reaction but a series of reactions involving sulfur dioxide (from the volcano), oxygen (from the atmosphere) and water (from both sources).
In addition to reducing sulfur dioxide emissions, scrubbing all of the Pleasants' flue gases will mitigate the periodic discharge of fly ash from the existing stacks and reduce mercury emissions.
PNNL noted that cryptomelane has a "very high" capacity for absorbing sulfur dioxide -- more than 10 times as high as those of standard metal oxide-based absorbents.