Potassium iodide can be conveniently prepared as a saturated solution, abbreviated SSKI . This method of delivering potassium iodide does not require a method to weigh out the potassium iodide so it can be used in an emergency situation.
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PbCl 2 is used in synthesis of lead ( IV ) chloride ( PbCl 4 ) : Cl 2 is bubbled through a saturated solution of PbCl 2 in aqueous NH 4 Cl forming [ NH 4 ] 2 [ PbCl 6 ].
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When the humidity of the atmosphere is equal to ( or is greater than ) the critical relative humidity of a sample of salt, the sample will take up water until all of the salt is dissolved to yield a saturated solution.
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It means using a sheer volume of solvent, usually about 5 to 10 times greater than the volume present in the saturated solution of the targeted chemical ( often the API, and sometimes the excipients ) contained in the dosage form being tested.
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Of particular note are the extreme halophiles or haloarchaea ( often known as halobacteria ), a group of archaea, which require at least a 2 M salt concentration and are usually found in saturated solutions ( about 36 % lyse from the change in osmotic conditions.
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The most common method of eliminating the liquid junction potential is to place a salt bridge consisting of a saturated solution of potassium chloride ( KCl ) and ammonium nitrate ( NH 4 NO 3 ) with lithium acetate ( CH 3 COOLi ) between the two solutions constituting the junction.
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An extreme example is saturated solution of potassium iodide ( SSKI ) which attains 100 " % " m / v potassium iodide mass concentration ( 1 gram KI per 1 mL solution ) only because the solubility of the dense salt KI is extremely high in water, and the resulting solution is very dense ( 1.72 times as dense as water ).
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I get even more lost when I deal with saturated solutions and there's apparently an equilibrium constant between the pure solid phase and a dissolved phase as a solute, because if I add more excess solute to a saturated solution, clearly the ratios cannot adjust themselves to the equilibrium constant since the solution is already saturated . talk ) 01 : 34, 18 February 2010 ( UTC)
39.
I get even more lost when I deal with saturated solutions and there's apparently an equilibrium constant between the pure solid phase and a dissolved phase as a solute, because if I add more excess solute to a saturated solution, clearly the ratios cannot adjust themselves to the equilibrium constant since the solution is already saturated . talk ) 01 : 34, 18 February 2010 ( UTC)
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A saturated solution of KI ( SSKI ) is typically given orally in adult doses several times a day ( 5 drops of SSKI assumed to be S ! ml ) for thyroid blockade ( to prevent the thyroid from excreting thyroid hormone ) and occasionally this dose is also used, when iodide is used as an expectorant ( the total dose is about one gram KI per day for an adult ).
