sulfur dioxide

(redirected from R-764)
Also found in: Thesaurus, Medical, Encyclopedia.

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 ?
Additional Nondimensional Cycle Simulation Results for the Fifteen Most Promising Pure Fluids as Potential R-114 Replacements Refrigerant [P.sub.evap] [P.sub.cond] [P.sub.comp,ratio] Ratio Ratio Ratio R-245eb 0.502 0.582 1.158 R-245ca 0.475 0.623 1.311 R-245fa 0.697 0.859 1.233 [SF.sub.5][CF.sub.2]H 0.938 0.960 1.024 R-E236fa 0.953 1.030 1.081 R-E245cb1 0.953 1.036 1.087 R-236ca 0.981 1.075 1.010 R-236ea 0.964 1.085 1.124 R-143 0.957 1.025 1.071 R-236cb 1.198 1.229 1.026 R-254cb 1.148 1.148 1.000 R-13I1 2.254 1.914 0.849 R-764 1.834 1.940 1.058 R-152a 2.770 2.502 0.903 R-717 4.669 4.438 0.950 R-114: SI Units 226.1 kPa 1038.8 kPa 4.59 English Units 32.8 psia 150.7 psia 4.59 CONCLUSIONS