Wijs solution is iodine monochloride (ICl) dissolved in acetic acid.
For a detailed recipe see this link.
ICl
Iodine Monochloride is the name for ICl.
Because iodine has a number of chlorides so the name would be ambiguous.
We need 1,27 g iodine.
ICL3 Is an interhalogenic molekule which is the only one that is not a Fluoride (all other interhalogenic bonds are fluorids). According to VSEPR it has a T-shape that is derived from a Tetraeder. The Chlor Atoms are on "the end" of the T and the Iodine is in the middle. You have a look here http://de.wikipedia.org/wiki/VSEPR-Modell CLF3 is isoelectronic to ICL3 As for the usage I only anything, but ICl is used as a fluorine agent.
Iodine monochloride is soluble in alcohol, ether, acetic acid. ICl is prepared from iodine and chlorine.
Preparation of iodine monochloride entails simply combining the halogens in a 1:1 molar ratio, according to the equation :- I2 + Cl2 → 2 ICl (iodine) + (chlorine) → (iodine monochloride)
2.538g in 1000ml. If you are making this for a titration, like for SO2 or thiosulfate, you need also to add iodide: 1. dissolve 8 g potassium iodide in about 250 mL water. 2. add 2.538 g iodine to the water solution. Stir until dissolved. 3. transfer to a 1000 mL volumetric flask and Q.S. to 1000 mL You should standardize vs. thiosulfate or arsenious oxide.
ICl
Iodine Monochloride is the name for ICl.
dissolve iodine crystals in a saturated KI(potassium iodide) solution
When chlorine gas is bubbled into an aqueous solution of potassium iodide, some of the iodide ions are oxidized to iodine. The iodine molecules combine with iodide ions to form brown triiodide ion, I3-. In this demonstration, the aqueous solution is above a layer of carbon tetrachloride, in which iodine is quite soluble. The beautiful violet color of iodine can be seen as the iodine dissolves in the carbon tetrachloride layer. With excess chlorine, iodine reacts to form iodine monochloride, ICl, which is ruby red. The iodine monochloride reacts further to form iodine trichloride, ICl3, which is much lighter in color, causing the solution to be decolorized.
Dissolve 16.235 g of ICl into 1000 ml solution with glacial acetic acid. The solution will be 0.1N Wij's Solution. However weighing is a very difficult task you need to have the required skill and sound analytical knowledge and detailed MSDS of ICl. Man Katuwal
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Because iodine has a number of chlorides so the name would be ambiguous.
Iodine Monochloride (ICl) oxidation states : => Iodine = +1 => Chlorine = -1
2grm iodine and 4grm KI add to 1000ml of water