Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Need help in this equation.

  1. Sep 19, 2012 #1
    Please what are the products of this reaction; SnCL4 + CH3OH + N2 + H2O .
  2. jcsd
  3. Sep 19, 2012 #2
    I have some ideas about the answer, but can you provide a context for how the question arises? I cannot see how nitrogen can possibly be involved in any reaction, but can see why you might be bubbling nitrogen through the reaction mixture. Similarly water is unlikely to have direct involvement.
  4. Sep 19, 2012 #3
    This is for thin film technology.
  5. Sep 19, 2012 #4
    OK then. I think the reaction you are wanting is carried out in aqueous solution with nitrogen bubbling through. The SnCl4 is a mild oxidant, designed to oxidize the methanol CH3OH to formaldehyde HCHO. Nitrogen is bubbled through the solution to remove dissolved oxygen, and prevent the oxidation reaction going further to formic acid HCOOH.

    The reaction is SnCl4 + CH3OH → HCHO + SnCl2 + 2 H+ + 2 Cl.

    Formaldehyde forms network polymers when reacted with phenol or melamine or similar materials. It might also be used as a cross-linking agent to harden some of the films you are working with.

    (Reason for asking my previous question was that I wanted to try to check that this was not homework before "spilling the beans".:smile:)
    Last edited: Sep 20, 2012
  6. Sep 20, 2012 #5


    User Avatar

    Staff: Mentor

    You will be surprised when you learn what lies people tell to pretend the problem is not their homework.

    - Mrs. Teacher? John is sick and he will not come to school today.
    - Who is speaking?
    - What do you mean "who is speaking"? My father!
  7. Sep 20, 2012 #6
    Yeah, I did say "trying to check"!
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook