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Iron (III) combines with the thiocyanate ion (SCN-) to make Iron Thiocyanate, which is a blood red compound. The two solutions most commonly used to make Iron Thiocyanate are Iron (III) Chloride (clearish yellowish brownish solution) and Potassium Thiocyanate (clear solution).
salts of iodine is used to liberate iodine.i.e iodine is liberated indirectly
For the best results reaction should take place in the slightly acidic solution (pH around 4-5), correct pH is obtained by addition of acetic acid.
Iodometry & iodimetry Iodometry An application of iodine chemistry to oxidation-reduction titrations for the quantitative analysis in certain chemical compounds, in which iodine is used as a reductant and the iodine freed in the associated reaction is titrated
The iodine value is the measure of the unsaturation of fats and oils. It is expressed as the number of grams of iodine absorbed by 100 g of the fat under the test conditions used.
On addition of the KI to your copper (II) solution, you formed Copper (I) iodine solid and produced the tri-iodide ion. It is the tri-iodide ion that you are titrating with the sodium thiosulfate. The tri-iodine ion is what itercalates into the starch molecules to form the dark blue color you are using as an end point in the titration. Some the the tri-iodide ion formed will adsorb to the surface of the solid copper (I) iodine formed. This must be desorbed for a complete titration. The addition of the potassium thiocyanate, displaces the adsorbed tri-iodine ion, and liberates it for titration.
Iron (III) combines with the thiocyanate ion (SCN-) to make Iron Thiocyanate, which is a blood red compound. The two solutions most commonly used to make Iron Thiocyanate are Iron (III) Chloride (clearish yellowish brownish solution) and Potassium Thiocyanate (clear solution).
salts of iodine is used to liberate iodine.i.e iodine is liberated indirectly
For the best results reaction should take place in the slightly acidic solution (pH around 4-5), correct pH is obtained by addition of acetic acid.
In iodometry sodium thiosulphate is used because it is standardized by potassium dichromate and it is the best and relaible way to standardized sodium thiosulphate using iodometric titration. Infact sodium thiosulphate is also standardized by iodimetry. The difference between both of them is only of iodine. In iodometry iodine gas is liberated that will further react with sodium thiosulphate but in iodimetry standard solution of iodine is used.
Ammonium Hydroxide is used in commercial cleaning products.
Iodometry & iodimetry Iodometry An application of iodine chemistry to oxidation-reduction titrations for the quantitative analysis in certain chemical compounds, in which iodine is used as a reductant and the iodine freed in the associated reaction is titrated
Ammonium chloride can be used as fermentation activator for the wines preparation.
The iodine value is the measure of the unsaturation of fats and oils. It is expressed as the number of grams of iodine absorbed by 100 g of the fat under the test conditions used.
If you mean iodometry, it is the use of the chemical iodine in a process called titration. Titration is often used to determine the concentration of a chemical in a solution. A common use of iodometry was determination of salt concentration in salt water. It is not the most accurate or quickest way these days.
An ammonium carbamate is the ammonium salt of carbamic acid - used as a nitrogen fertilizer and in the manufacturer of urea.
- ammonium nitrate is a very known fertilizer- explosives (bombs)- cold packs