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Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing since 1989
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Copper sulphate, equation for decomposition
What is the chemical equation for the decomposition of copper sulphate ⇦ this on eBay or Amazon [affil links] pentahydrate?
Sarah Mendlovitz- Greensboro, North Carolina
The pentahydrate is 100% isolable only in temperatures lower than 30 °C. The light blue trihydrate non-isolable form can be obtained around 30°C. White monohydrate form is available at 110°C, while the anhydrous form can be isolated near 250°C. The decomposition slightly starts at 250 degrees, while complete decomposition occurs around 600 degrees...
The reaction is as follows: CuSO4 (aq) ==> SO2(g) + CuO(s)
Meriçcan UstaTed Ankara College - Ted Ankara College, Turkey
2006
Hi, I'm a student at Townsville grammar school in QLD and we're doing a practical on changing copper carbonate
⇦ this on
eBay
or
Amazon [affil links]
to copper (II) sulphate and I was wondering where you got your information about copper (II) sulphate and the degrees it decomposes at;
"At 30°C the light blue tri-hydrate is formed, at 110°C the monohydrate is formed and at 250°C the anhydrous is formed. At 250°C the copper sulphate slightly decomposes however it does not fully decompose till 600°C."
thanks a lot
student - Townsville, Queensland, Australia
When copper sulphate is analysed through TGA (Thermogravimetric analysis) it goes as per the literature by losing the water of hydration step by step.
Then, if we continue further, say at around 450 °C there is sudden decrease in weight% of about 13%. So I am doubting whether it is due to decomposition of anhydrous copper sulphate or noise in TGA.
- Chennai, Tamilnadu, India
December 6, 2008
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