An early method of producing this compound relied on a nitrogen dioxide catalyst.
This compound is reacted with hydrogen iodide to release hydrogen gas in the final step of a certain process, and three equivalents of this compound are used to treat tricalcium phosphate in the wet-method to produce phosphoric acid for fertilizers. An early method of producing this compound relied on a nitrogen dioxide catalyst. This compound is now produced in a process that uses a vanadium oxide catalyst, and when at high concentrations, this compound can be used to dehydrate other compounds. In a common demonstration, this compound is added to sugar, which results in the formation of a dark tower, and it is generally made by the contact process. For 10 points, name this diprotic acid with formula H2SO4.
This compound is reacted with hydrogen iodide to release hydrogen gas in the final step of a certain process, and three equivalents of this compound are used to treat tricalcium phosphate in the wet-method to produce phosphoric acid for fertilizers.
sulfuric acid [accept H2SO4 before mentioned; do not accept sulfurous acid]