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[3] He was exiled upon his release to the coastal town of Bạc Liêu in the far south. His key supporters were sent to a concentration camp in Nui Bara . The French restrictions and coercions strengthened his nationalist appeal, and Bạc Liêu soon became a place of Hòa Hảo pilgrimage, although it was far from the movement's strongholds.
H 2 S 2 O 5 +5 (of the sulfur atom bonded to 3 oxygen atoms), +3 (of other sulfur atom) Disulfite commonly known as metabisulfite, S 2 O 2− 5: Not known. Sulfurous acid: H 2 SO 3 +4 Bisulfite, HSO − 3 and sulfite, SO 2− 3: Not known. Dithionous acid: H 2 S 2 O 4 +3 Dithionite, O 2 SSO 2− 2: Not known. Sulfoxylic acid: H 2 SO 2 +2 ...
The compound is prepared by treating V 2 O 5 in sulfuric acid with elemental sulfur: [2] V 2 O 5 + S + 3 H 2 SO 4 → V 2 (SO 4) 3 + SO 2 + 3 H 2 O. This transformation is a rare example of a reduction by elemental sulfur. When heated in vacuum at or slightly below 410 °C, it decomposes into vanadyl sulfate (VOSO 4) and SO 2. Vanadium(III ...
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]
Basic gallium sulfate is known with the formula (H 3 O)Ga 3 (SO 4) 2 (OH) 6. [6] Double gallium sulfates are known with composition NaGa 3 (SO 4) 2 (OH) 6, KGa 3 (SO 4) 2 (OH) 6, RbGa 3 (SO 4) 2 (OH) 6, NH 4 Ga 3 (SO 4) 2 (OH) 6. These compounds are isostructural with jarosite and alunite. Jarosite and alunite can contain a small amount of ...
2 NH 3 + SO 2 + H 2 O → (NH 4) 2 SO 3. Ammonium sulfite is produced in gas scrubbers, now obsolete, consisting of ammonium hydroxide to remove sulfur dioxide from emissions from power plants. The conversion is the basis of the Walther Process. The resulting ammonium sulfite can be air oxidized to give ammonium sulfate. [4]
Sodium oxalate starts to decompose above 290 °C into sodium carbonate and carbon monoxide: [2] Na 2 C 2 O 4 → Na 2 CO 3 + CO. When heated at between 200 and 525°C with vanadium pentoxide in a 1:2 molar ratio, the above reaction is suppressed, yielding instead a sodium vanadium oxibronze with release of carbon dioxide [6] x Na 2 C 2 O 4 + 2 ...
2 CaSO 4 + 2 SiO 2 + C → 2 CaSiO 3 + 2 SO 2 + CO 2 Until the 1970s commercial quantities of sulfuric acid and cement were produced by this process in Whitehaven , England. Upon being mixed with shale or marl , and roasted, the sulfate liberated sulfur dioxide gas, used in sulfuric acid production, the reaction also produced calcium silicate ...