December 26, 2024, 09:56:11 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1] 2   Go Down

Topic: Acetone Synthesis  (Read 32505 times)

0 Members and 2 Guests are viewing this topic.

Offline constant thinker

  • mad scientist
  • Sr. Member
  • *****
  • Posts: 1275
  • Mole Snacks: +85/-45
  • Gender: Male
Acetone Synthesis
« on: December 01, 2005, 08:47:12 PM »
This stems off of
http://www.chemicalforums.com/index.php?board=9;action=display;threadid=5979

So you can make acetone from isopropyl alcohol. This would liberate water. I'm going to try this.

Basically from this post it's:
C3H8O1 + H2O2 -> 2 H2O + C3H6O1

Correct anything if it's wrong please. :)
I'm going to try this as soon as I get a chance to go to the store. How will I able to detect acetone. Isopropanol is flammable also. Smelling isn't a prefered option.


Would this be considered a Dehydration Reaction?
« Last Edit: December 01, 2005, 08:49:05 PM by constant thinker »
Logged
"The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.' " -Ronald Reagan

"I'm for anything that gets you through the night, be it prayer, tranquilizers, or a bottle of Jack Daniels." -Frank Sinatra

Offline limpet chicken

  • mad scientist
  • Full Member
  • ****
  • Posts: 750
  • Mole Snacks: +49/-27
  • Gender: Male
  • Vote Limpet for supreme emperor of the new order
Re:Acetone Synthesis
« Reply #1 on: December 01, 2005, 09:52:49 PM »
I would use much stronger peroxide, although STRICTLY avoid adding any peroxide with acid in it (OTC stuff has phosphoric acid mixed in with it over here)

Acid would catalyse formation of dimeric or trimeric acetone peroxide, which is unstable in the extreme and likely to explode with great violence.

You can detect acetone by its smell, which is quite different to that of propanol or isopropanol.
Logged
The light blinds
So behold darkness as our new light
In our darkness we can see
So with others blindness
We take flight.

Offline Mitch

  • General Chemist
  • Administrator
  • Sr. Member
  • *
  • Posts: 5298
  • Mole Snacks: +376/-3
  • Gender: Male
  • "I bring you peace." -Mr. Burns
    • Chemistry Blog
Re:Acetone Synthesis
« Reply #2 on: December 02, 2005, 12:40:19 AM »
You can buy acetone. Why synthesize it?
Logged
Most Common Suggestions I Make on the Forums.
1. Start by writing a balanced chemical equation.
2. Don't confuse thermodynamic stability with chemical reactivity.
3. Forum Supports LaTex

Offline constant thinker

  • mad scientist
  • Sr. Member
  • *****
  • Posts: 1275
  • Mole Snacks: +85/-45
  • Gender: Male
Re:Acetone Synthesis
« Reply #3 on: December 02, 2005, 05:11:48 PM »
It's more fun to synthesise. I already have acetone in my house. It goes by the name of Nail Polish remover. Not pure I know.
Logged
"The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.' " -Ronald Reagan

"I'm for anything that gets you through the night, be it prayer, tranquilizers, or a bottle of Jack Daniels." -Frank Sinatra

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27887
  • Mole Snacks: +1816/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re:Acetone Synthesis
« Reply #4 on: December 02, 2005, 06:10:38 PM »
Quote from: constant thinker on December 02, 2005, 05:11:48 PM
I already have acetone in my house. It goes by the name of Nail Polish remover.
It could be acetone, it could be not - depends. There are polish nail removers acetone free.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline constant thinker

  • mad scientist
  • Sr. Member
  • *****
  • Posts: 1275
  • Mole Snacks: +85/-45
  • Gender: Male
Re:Acetone Synthesis
« Reply #5 on: December 02, 2005, 10:01:46 PM »
Yes I know. I already checked the bottle on multiple occasions.
Logged
"The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.' " -Ronald Reagan

"I'm for anything that gets you through the night, be it prayer, tranquilizers, or a bottle of Jack Daniels." -Frank Sinatra

Jessica

  • Guest
Re:Acetone Synthesis
« Reply #6 on: December 03, 2005, 04:52:49 AM »
I Could be wrong here, but I see to remember reading somewhere that electrolysis of citric acid soln will create acetone also, although how you extract it afterwards wasn`t mentioned.
Logged

Offline limpet chicken

  • mad scientist
  • Full Member
  • ****
  • Posts: 750
  • Mole Snacks: +49/-27
  • Gender: Male
  • Vote Limpet for supreme emperor of the new order
Re:Acetone Synthesis
« Reply #7 on: December 03, 2005, 07:47:45 PM »
Never trust OTC solvents, ALWAYS make sure to do an evaporation test before use, and distill over a drying agent into a storage container.

OTC solvents are so often full of s#*$, I was recently sold a bottle of "pure acetone" OTC from the  local pharmacy, and it, on sitting with anhydrous MgSO4, lost around 10% of its weight, which was f&#^$*@ water >:(
Logged
The light blinds
So behold darkness as our new light
In our darkness we can see
So with others blindness
We take flight.

Offline Alberto_Kravina

  • Assault Chemist
  • Retired Staff
  • Full Member
  • *
  • Posts: 608
  • Mole Snacks: +70/-15
Re:Acetone Synthesis
« Reply #8 on: December 04, 2005, 04:05:13 AM »
You are completely right limpet chicken!
Some months ago I bought "pure" ethanol to make the reaction of metallic sodium with ethanol, and it lost about 4% of it's weight with anhydrous Sodium sulfate (commercial concentrated ethanol has a concentration of about 96%, but the label on the bottle said 100%!), mabye the guys in the pharmacy confused it .  >:( >:(Fortunately I made this water test BEFORE I made the reaction with sodium.
Logged

Offline billnotgatez

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 4431
  • Mole Snacks: +225/-62
  • Gender: Male
Re:Acetone Synthesis
« Reply #9 on: December 04, 2005, 05:21:43 AM »
Alberto_Kravina –
How did you remove the water so as to continue with your experiments?
Regards,
Bill
Logged

Offline limpet chicken

  • mad scientist
  • Full Member
  • ****
  • Posts: 750
  • Mole Snacks: +49/-27
  • Gender: Male
  • Vote Limpet for supreme emperor of the new order
Re:Acetone Synthesis
« Reply #10 on: December 04, 2005, 02:00:27 PM »
Alberto, that could have been really nasty, (and really expensive to boot!), if you were trying to make alkoxides via Na metal and EtOH, but jesus christ, throwing a lump of sodium into hydrous alcohol, thats a recipe for a crispy fried face :o


I have read, however, that is is perfectly practical to prepare group I alkoxides through adding the anhydrous hydroxide of the metal to the relevant anhydrous alcohol, the alkoxide layer being able to be siphoned off, it works, I use that method to prepare NaOMe, which I use to clean out my glass hash pipe, it burns the resin right off, no matter how baked on, from months of use that it may be ;D

Logged
The light blinds
So behold darkness as our new light
In our darkness we can see
So with others blindness
We take flight.

Offline Alberto_Kravina

  • Assault Chemist
  • Retired Staff
  • Full Member
  • *
  • Posts: 608
  • Mole Snacks: +70/-15
Re:Acetone Synthesis
« Reply #11 on: December 04, 2005, 02:05:02 PM »
I didn't make the reaction with sodium with the ethanol with the 96% EtOH, I bought a new bottle of "pure" ethanol
Logged

Beatles

  • Guest
Re:Acetone Synthesis
« Reply #12 on: December 04, 2005, 02:06:36 PM »
Is it possible to create acetone in oxidizing 2-propanol with KMnO4?
Logged

Offline Alberto_Kravina

  • Assault Chemist
  • Retired Staff
  • Full Member
  • *
  • Posts: 608
  • Mole Snacks: +70/-15
Re:Acetone Synthesis
« Reply #13 on: December 04, 2005, 02:07:57 PM »
Yes I think this is possible because potassium permanganate is a strong oxidizing agent.  :)
Logged

Offline billnotgatez

  • Global Moderator
  • Sr. Member
  • ***
  • Posts: 4431
  • Mole Snacks: +225/-62
  • Gender: Male
Re:Acetone Synthesis
« Reply #14 on: December 04, 2005, 02:28:05 PM »
 Alberto_Kravina –
How did you pure ethanol or was it denatured?
Regards,
Bill
Logged
Pages: [1] 2   Go Up
« previous next »
Sponsored Links