October 11, 2024, 10:14:06 AM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Chromium from old audio tape  (Read 6749 times)

0 Members and 1 Guest are viewing this topic.

Offline science2000

  • Regular Member
  • ***
  • Posts: 82
  • Mole Snacks: +5/-5
  • Gender: Male
  • Bio/Chem Student
Chromium from old audio tape
« on: December 25, 2005, 12:02:13 AM »
Does anyone know of a way I can dissolve the Chromium from it? Vinegar and peroxide aren't promising.
Logged

Offline Alberto_Kravina

  • Assault Chemist
  • Retired Staff
  • Full Member
  • *
  • Posts: 608
  • Mole Snacks: +70/-15
Re:Chromium from old audio tape
« Reply #1 on: December 25, 2005, 01:42:02 PM »
concentrated HNO3 will dissolve the chromium, but I think that it also dissolves the tape...
Logged

Offline P-man

  • Full Member
  • ****
  • Posts: 289
  • Mole Snacks: +13/-17
  • Gender: Male
  • Join Smart People for a better future...
    • My Website
Re:Chromium from old audio tape
« Reply #2 on: December 29, 2005, 07:36:08 PM »
Yeah but if he's trying to get the chromium he won't really care about the tape, will he?
Logged
Pierre.

Fight for the protection of our envrionmenta and habitat: http://www.wearesmartpeople.com

Offline Alberto_Kravina

  • Assault Chemist
  • Retired Staff
  • Full Member
  • *
  • Posts: 608
  • Mole Snacks: +70/-15
Re:Chromium from old audio tape
« Reply #3 on: December 30, 2005, 02:52:17 PM »
I tried it by myself with 65% nitric acid and it worked, it also worked with 7 M HNO3.
Logged

Offline science2000

  • Regular Member
  • ***
  • Posts: 82
  • Mole Snacks: +5/-5
  • Gender: Male
  • Bio/Chem Student
Re:Chromium from old audio tape
« Reply #4 on: December 30, 2005, 09:59:29 PM »
Unfortunately I don't have any nitric acid. concebtrated Hydrochloric acid doesn't seem to work. What's up with that! It's strange that this CrO2 is so inert.
« Last Edit: December 30, 2005, 10:05:05 PM by science2000 »
Logged

Offline constant thinker

  • mad scientist
  • Sr. Member
  • *****
  • Posts: 1275
  • Mole Snacks: +85/-45
  • Gender: Male
Re:Chromium from old audio tape
« Reply #5 on: December 30, 2005, 10:56:28 PM »
Try out concentrated sulfuric acid. It's much for readily available than nitric acid. It may work or it may not. If it doesn't work then you'll have some sulfuric acid to play around with.
« Last Edit: December 30, 2005, 10:57:03 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
Pages: [1]   Go Up
« previous next »
Sponsored Links