April 20, 2024, 12:51:41 AM
Forum Rules: Read This Before Posting


Topic: Stearic Acid reaction  (Read 9910 times)

0 Members and 1 Guest are viewing this topic.

Offline Dex

  • Regular Member
  • ***
  • Posts: 37
  • Mole Snacks: +6/-1
Stearic Acid reaction
« on: March 01, 2013, 06:19:00 AM »
What is the reaction between Stearic Acid and sodium bicarbonate??

C18H36O2 + NaHCO3????

Tnx in advance

Offline Hunter2

  • Sr. Member
  • *****
  • Posts: 2178
  • Mole Snacks: +166/-48
  • Gender: Male
  • Vena Lausa moris pax drux bis totis
Re: Stearic Acid reaction
« Reply #1 on: March 01, 2013, 06:31:07 AM »
What do generally acids with basic solutions. Also one hint how does  bubble candy work. Check what is soap. Combine everything.

Offline Arkcon

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7367
  • Mole Snacks: +533/-147
Re: Stearic Acid reaction
« Reply #2 on: March 01, 2013, 06:41:47 AM »
When you're working with a simple acid-base reaction like this, and you have an organic acid, its helpful to think of the formula of acid, by functional group.  Like I've explained before: http://www.chemicalforums.com/index.php?topic=29784.0
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Dex

  • Regular Member
  • ***
  • Posts: 37
  • Mole Snacks: +6/-1
Re: Stearic Acid reaction
« Reply #3 on: March 01, 2013, 06:47:39 AM »
Sorry Chemists
But My major is not chemical, and I found this reaction on internet. IS that right??
C18H36O2 + NaHCO3 = H2O + CO2 + NaC18H35O2

But there is a problem though
Stearic Acid is solid at room temperature and so is bicarbonate, So to make the reaction happen, It seems I have to heat Stearic Acid to turn to liquid and then add bicarbonate. Am I right???

Offline Hunter2

  • Sr. Member
  • *****
  • Posts: 2178
  • Mole Snacks: +166/-48
  • Gender: Male
  • Vena Lausa moris pax drux bis totis
Re: Stearic Acid reaction
« Reply #4 on: March 01, 2013, 06:58:53 AM »
Yes the reaction is right. I told you to check google or others to make soap. At least you melt the acid and add the bicarbonate.

Offline Arkcon

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7367
  • Mole Snacks: +533/-147
Re: Stearic Acid reaction
« Reply #5 on: March 01, 2013, 07:03:26 AM »
Basically, no.  Acid-base reactions occur in aqueous solution, not in the melt, generally.  Bicarbonate is likely not stable at stearic acid melting point and will decompose.  If you bungle blindly, you're very likely to get a mess.  What you could do is is react with NaOH, to form soap.  At first, very little will react, you may use alcohol to dissolve some of the steaic acid, so it can mix with the water and NaOH and react.  Then, as soap forms, it will dissolve more and more of the stearic acid.  I don't know if sodium stearate has the properties you need, however.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Dex

  • Regular Member
  • ***
  • Posts: 37
  • Mole Snacks: +6/-1
Re: Stearic Acid reaction
« Reply #6 on: March 01, 2013, 07:32:22 AM »
tnx guys
Cuz I didnt have access to any alcohol, I'll try melting method but cautiously

Sponsored Links