1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How to convert boric acid to boric oxide

  1. Jun 22, 2006 #1
    How to convert boric acid to boric oxide?
    To a few crystals of boric acid in a test-tube add a little methanol and some concentrated sulphuric acid. Heat and ignite the vapour evolved. Why should barium and copper interfere in this test?
     
  2. jcsd
  3. Jun 23, 2006 #2

    siddharth

    User Avatar
    Homework Helper
    Gold Member

    Well, what do you think? You need to show your thoughts/ideas on this question, before you get help.
     
  4. Feb 14, 2007 #3
    i really want to know how..
     
  5. Feb 14, 2007 #4

    chemisttree

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Wow, there are a lot of views on this and only one response!

    Why do you think that methanol and sulfuric acid were added? The product is volatile (it evaporates). This volatility is key to the method.

    Is this any help?
     
  6. Feb 14, 2007 #5

    Borek

    User Avatar

    Staff: Mentor

    What is this question about? IIRC to convert boric acid to boric oxide you should roast it. Procedure listed is a test for boric acid presence.
     
  7. Feb 15, 2007 #6

    chemisttree

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Yes, but the method he is following involves reacting it with methanol and sulfuric acid followed by ignition. His method won't work is metals like copper or barium are present and he needs to figure out why...
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?