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How is cuprous iodide prepared?

Updated: 9/19/2023
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12y ago

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React a solution of Copper(II) sulfate with Sodium Iodide. It will produce Copper(II) Iodide and Sodium sulfate. This Copper(II) iodide, due to instability, spontaneously decomposes, producing Iodine and Copper(I) Iodide.

The Copper(I) iodide comes out as a yellowish brown precipitate. So the overall reaction seems to be:

2 CuSO4 + 4 NaI ----> 2 CuI + 2 Na2SO4 + I2

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Q: How is cuprous iodide prepared?
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Related questions

What is the formula of cuprous iodide?

CuI


Color of cuprous iodide?

Brownish white


What is a formula for cuprous iodide?

Formula: CuI


How is cuprous iodide formed from potassium iodide?

I think it could be obtained by the single displacement rxn : K3I + Cu ---> K + Cu3I2


What is the equation for sodium iodide and copper nitrate?

in aqueous medium ppts. of copper iodide are formed which are converted into cuprous iodide and free iodine in a short time. 2NaI + Cu(NO3)2 = CuI2 + 2NaNO3 2CuI2 = Cu2I2 + I2


Why francium iodide don't exist?

Francium iodide was not prepared but this compound should be real.Francium is very difficult to be prepared, unstable and because of the heat of decay is easy autovaporized - any experiment is possible.


What is the colour of cuprous sulphide?

The cuprous sulfide - Cu2S - is black.


What metals are cuprous?

The correct spelling is 'cuprous', and means copper-conatining. Some cuprous metals are, copper (obviously), brass, and bronze


Cuprous oxide formula?

Cuprous oxide or copper I oxide is Cu2O


How many electrons does cuprous ion have?

a cuprous ion has 28 electrons.


What is valency of cuprous?

"Cuprous" is an archaic term for what today is called copper (I), Cu+1.


What happens when potassium iodide is mixed with copper sulphate?

In the laboratory, copper(I) Iodide is prepared by simply mixing an aqueous solutions of potassium iodide and a soluble copper(II) salt such copper sulphate. : :: Cu2+ + 2I− → CuI2 The CuI2 immediately decomposes to iodine and insoluble copper(I) iodide, releasing I2. : :: 2 CuI2 → 2 CuI + I2