December 25, 2024, 12:15:45 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Can you get NaOH by this  (Read 5684 times)

0 Members and 1 Guest are viewing this topic.

Offline acid_man

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Can you get NaOH by this
« on: December 27, 2009, 09:48:32 AM »
CaO + H2O = Ca(OH)2
Ca(OH)2 + Na2CO3 = NaOH + CaCO3
Logged

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Can you get NaOH by this
« Reply #1 on: December 28, 2009, 02:01:09 AM »
THis is a method uses in Solvay plants
see: http://fr.wikipedia.org/wiki/Hydroxyde_de_sodium
under: À partir de carbonate de sodium
Unfortunately the english Wikipedia omitted this process
« Last Edit: December 30, 2009, 01:37:54 AM by AWK »
Logged
AWK

Offline Fleaker

  • Full Member
  • ****
  • Posts: 110
  • Mole Snacks: +11/-0
  • Gender: Male
  • Synthetic Chemist
Re: Can you get NaOH by this
« Reply #2 on: December 29, 2009, 03:38:26 PM »
Yes, that is a well-known process.

I think it's second most used after chlor-alkali.
Logged
Neither flask nor beaker.

Offline aieeee

  • Regular Member
  • ***
  • Posts: 18
  • Mole Snacks: +1/-4
Re: Can you get NaOH by this
« Reply #3 on: January 13, 2010, 01:36:45 AM »
won't there be a problem separating the products as Na2CO3 is also soluble in aqueous medium ?
Logged

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7976
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Can you get NaOH by this
« Reply #4 on: January 13, 2010, 03:51:30 AM »
Quote from: aieeee on January 13, 2010, 01:36:45 AM
won't there be a problem separating the products as Na2CO3 is also soluble in aqueous medium ?
You should add just a stoichiometric amount of sodium carbonate and you question is irrelevant.
Logged
AWK
Pages: [1]   Go Up
« previous next »
Sponsored Links