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Sulfuric(IV) acid (United Kingdom spelling: sulphuric(IV) acid), also known as sulfurous (UK: sulphurous) acid and thionic acid, [citation needed] is the chemical compound with the formula H 2 SO 3. Raman spectra of solutions of sulfur dioxide in water show only signals due to the SO 2 molecule and the bisulfite ion, HSO − 3 . [ 2 ]
However, SO 3 added to concentrated sulfuric acid readily dissolves, forming oleum which can then be diluted with water to produce additional concentrated sulfuric acid. [4] Typically, above concentrations of 98.3%, sulfuric acid will undergo a spontaneous decomposition into sulfur trioxide and water H 2 SO 4 ⇌ SO 3 + H 2 O
Sulfuric acid is a very important commodity chemical; a country's sulfuric acid production is a good indicator of its industrial strength. [9] Many methods for its production are known, including the contact process, the wet sulfuric acid process, and the lead chamber process. [10] Sulfuric acid is also a key substance in the chemical industry.
This is an accepted version of this page This is the latest accepted revision, reviewed on 19 December 2024. This article is about the chemical element. For other uses, see Sulfur (disambiguation). Chemical element with atomic number 16 (S) Sulfur, 16 S Sulfur Alternative name Sulphur (British spelling) Allotropes see Allotropes of sulfur Appearance Lemon yellow sintered microcrystals Standard ...
In 2002, 95% pure sulphuric acid cost £55 and 90% acid cost £40 per tonne. [119] Due to floods in Poland and increased demand in China, the acid's price soared to $329/tonne in May 2008, from just $90/tonne in October 2007. It has become steadily cheaper since the start of 2010.
It was also shortly after its competitor Costco , then known as Price Club, made its debut in the 1970s in San Diego. As of November, there are 600 Sam's Club locations in the US. Costco and BJ's ...
The decomposition products can include sulfur, sulfur dioxide, hydrogen sulfide, polysulfanes, sulfuric acid and polythionates, depending on the reaction conditions. [6] Anhydrous methods of producing the acid were developed by Max Schmidt: [6] [7] H 2 S + SO 3 → H 2 S 2 O 3 Na 2 S 2 O 3 + 2 HCl → 2 NaCl + H 2 S 2 O 3 HSO 3 Cl + H 2 S → ...
The company's shares trade at a 12-month forward price-to-earnings ratio of 19.58, compared with Microsoft's 32.03 and Amazon's 36.79, according to data compiled by LSEG.
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