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잔글 (GR) File renamed: File:2000sulphuric acid.PNG → File:Sulfuric acid 2000.png Criterion 3 (obvious error) · Current spellings are sulfur, sulfuric, sulfide, sulfate, etc. IUPAC, US, and (increasingly) UK. |
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===Sulfuric acid===
Elemental sulfur is used mainly as a precursor to other chemicals. Approximately 85% (1989) is converted to [[sulfuric acid]] ([[hydrogen|H]]<sub>2</sub>SO<sub>4</sub>):
:2 S + 3 O<sub>2</sub> + 2 H<sub>2</sub>O → 2 H<sub>2</sub>SO<sub>4</sub>[[파일:
Because of its importance, sulfuric acid was considered an excellent indicator of a country's industrial well-being.<ref>[http://www.pafko.com/history/h_s_acid.html Sulfuric Acid Growth]. Pafko.com. Retrieved on 16 August 2012.</ref> For example, with 32.5 million tonnes in 2010, the United States produces more sulfuric acid every year than any other inorganic industrial chemical.<ref name=USGS>{{웹 인용|title = Mineral Yearbook 2010: Sulfur|author=Apodaca, Lori E. |publisher = United States Geological Survey|url = http://minerals.usgs.gov/minerals/pubs/commodity/sulfur/myb1-2010-sulfu.pdf}}</ref> The principal use for the acid is the extraction of phosphate ores for the production of fertilizer manufacturing. Other applications of sulfuric acid include oil refining, wastewater processing, and mineral extraction.<ref name=Nehb/>
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