Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site
pub Where the world gathers for
plating, anodizing, & finishing Q&As since 1989





-----

Copper Sulfate, equation for decomposition



 

What is the chemical equation for the decomposition of copper sulfate 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 Usta
Ted 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 to copper (II) sulfate and I was wondering where you got your information about copper (II) sulfate 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 sulfate slightly decomposes however it does not fully decompose till 600°C."

thanks a lot

Courtney J.
student - Townsville, Queensland, Australia



December 6, 2008

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.

Arunagiri Sachin
- Chennai, Tamilnadu, India


none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages



(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2023 finishing.com, Pine Beach, New Jersey, USA