how does Calcium hypochlorite decompose in the presence of catalysts?

Subject: how does Calcium hypochlorite decompose in the presence of catalysts?

Date: Sat Jan 22 04:32:02 2000
Posted by jennifer
Grade level: 10-12 School: No school entered.
City: No city entered. State/Province: No state entered. Country: No country entered.
Area of science: Chemistry
ID: 948537122.Ch

Message:


It is understood that the rate of decomposition of calcium hypochlorite is faster 
in the  presence of 2 catalysts (Iron (II) sulphate and Copper Sulphate) than in 
the presence of only one of them. The rate of reaction can be measured by 
the evolution of Oxygen. I have found out that there is also evolution of 
chlorine. The decomposition in the presence of CuSO4 (forms black 
precipiate) is a lot faster than that with FeSO4 (forms orange 
precipitate).  PLease help. I do not know what the precipitates are and 
will be grateful if you can tell me more about the reactions. 
Theoretically, the Fe2+ should not turn to Fe3+ (orange) as it should be a 
catalyst. 

Your help would be very much appreciated.
thank you!

Re: how does Calcium hypochlorite decompose in the presence of catalysts?

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