Oxides and hydroxides

Chemistry and homework help forum.

Organic Chemistry, Analytical Chemistry, Biochemistry, Physical Chemistry, Computational Chemistry, Theoretical Chemistry, High School Chemistry, Colledge Chemistry and University Chemistry Forum.

Share your chemistry ideas, discuss chemical problems, ask for help with scientific chemistry questions, inspire others by your chemistry vision!

Please feel free to start a scientific chemistry discussion here!

Discuss chemistry homework problems with experts!

Ask for help with chemical questions and help others with your chemistry knowledge!

Moderators: Xen, expert, ChenBeier

Post Reply
blorgho
Newbie
Newbie
Posts: 1
Joined: Mon Jan 14, 2008 7:37 am

Oxides and hydroxides

Post by blorgho »

How can I quantify CaO and Ca(OH)2 in a paste at the same time, without the result giving me the total of both together? I have tried using XRD, but the matrix in my paste is too complex and the results overlap. Maybe I could try DTA but I think it would only be qualitative. TGA could give me the amount of all other hydroxides, but not Ca(OH)2 alone.

I just want to know how much CaO and how much Ca(OH)2 I have in this complex matrix, or just a method to identify and quantify hydroxides. :shock:
Top
chempass
Sr. Member
Sr. Member
Posts: 41
Joined: Thu Aug 24, 2006 9:29 pm

Post by chempass »

What else do you have in the matrix?
Can you heat it up and measure the amount of water which evaporates:

Code: Select all

Ca(OH)2 = CaO + H2O
Top
Post Reply

Return to “Chemistry forum”