Potassium thiosulfate

CONOSOX A complex flue-gas desulfurization process using potassium carbonate solution as the wet scrubbing medium. The product potassium bisulfite is converted to potassium thiosulfate and then reduced with carbon monoxide to potassium carbonate for re-use. The sulfur is recovered as hydrogen sulfide, which is converted to elemental sulfur by the Claus process. Developed by the Conoco Coal Development Company and piloted in 1986. 

Miscellaneous sulfur-containing reagents. Culvenor ami cn workers8 1 were the first to examine briefly the action of alkaline potassium thiosulfate on ethylene oxide. The products isolated by Uh-jm were potassium isethionato (potassium 0-hydroxyethanesulfonnte enrl -hydroxyethane sulfuuc add. The course postulated fear this process was as shown in Eq. (696). 

Although a Hulfinjc acid could not be isolated from the condensation of potassium thiosulfate with cydohexene oxide, the authors did obtain potassium 2-hydroxycyclohexanc sulfonate, pnsnutiiblj possessing the trane configuration (Eq. 696). 

The potassium salt may be prepared 4 in the same way if potassium thiosulfate is available. Otherwise, potassium tetrathionate (anhydrous) is formed by dissolving the sodium salt in its own weight of water at 40 0, adding 200% of the calculated amount of potassium acetate, and 1-2 volumes of alcohol. 

Manchot (44) and by Brauer (45). Reaction of an iron(II) salt with potassium thiosulfate and nitric oxide yields the required anion [Eq. (12)]. 

Other chemicals that can be used to make stop baths are boric acid, citric acid, and sodium bisulfite. Chemicals that should not be used are chrome alum and potassium salts, such as potassium metabisulfite or potassium sulfite, either of which can cause green stains on some enlarging papers. In addition, the introduction of potassium salts into a fixing bath can convert the bath to potassium thiosulfate, which is nearly inactive as a fixing agent.1... 

K2S203 potassium thiosulfate 10294-66-3 25.00 2.2300 1 2394 MgCI2H12014 magnesium perchlorate hexahydrate 13446-19-0 25.00 1.9800 1... 

The iodometric method for the determination of ozone concentration in oxygen consists of absorbing the sample containing ozone in a 2% solution of potassium iodide. The iodine produced is titrated with standard potassium thiosulfate solution, using starch as an indicator. 

A mixture composed chiefly of potassium polysulfides and potassium thiosulfate, containing not less than 12.8% sulfur in combination as sulfide. 

Potassium thiosulfate hydrate [13446-67-8, 10294-66-3 (75% aqueous solution)] M 190.3, pK pK 1.74 (for H2S2O3) Crystallise it from warm water (0.5mL/g) by cooling in an ice-salt mixture. 

Potash Sulfurated. Liver of sulfur sulfurated po-tassa hepar sulfuris. Mixture of potassium polysulfides, chiefly trisulfide, and potassium thiosulfate, containing not less than 12.8% sulfur as sulfide. U.S.D. (5th ed., 1955) p 1092. Has been incorrectly called "potassium sulfide . 

Definition Copper + potassium polysulfide + potassium thiosulfate... 

Ammonium polysulfide, 20-0-0-40S solution with aqua or anhydrous ammonia Potassium polysulfide, 0-0-22-22S solution Potassium thiosulfate, 0-0-25-178 ... 

Surface amendment of thiosulfate products was also tested for reducing 1,3-D emission after soil treatment using packed soil columns or field plots (27). In packed soil columns, it was found t the reduction in 1,3-D emission was proportional to the amount of ammonium thiosulfate used when the amount of water (as carrier for ammonium thiosulfate) was fixed, and to the amount of water sprayed when the amount of ammoniiun thiosulfate was fixed (Table 5). When ammonium thiosulfate wi used at 64 g m the emission of 1,3-D decreased from 33% to 12% when the amount of water was increased firem 1 mm to 9 mm (Table 5). When the water application rate was kept at 9 mm, 1,3-D emission loss decreased from 15% to only 3% when die rate of ammonium thiosulfate was increased from 64 g m to 193 g m. Under similar conditions, the total emission loss of 1,3-D from untreated columns was 43-47%. In field plots, the emission loss of 1,3-D was observed to decrease from 25% in unamended plots to about 5% in ammonium thiosulfate-amended plots. In addition, application of either ammonium or potassium thiosulfate to field plots did not significantly inhibit the effectiveness for nematode control. 

Simple silver acetylide does not form in aqueous potassium cyanide or potassium thiosulfate solutions [1]. Introduction of acetylene into a neutral or acidic solution of silver nitrate does not lead to the simple silver acetylide salt Ag2C2, but a complex acetylide Ag2C2-AgN03. Keiser, however, reports that it is possible to prepare Ag2C2 in diluted neutral solutions of silver nitrate, while in more concentrated ones the double salt Ag2C2-AgN03 is formed [7]. 

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