December 26, 2024, 09:05:27 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Iron II Sulphate and Iron III Sulphate  (Read 3151 times)

0 Members and 1 Guest are viewing this topic.

Offline Ballistic

  • Regular Member
  • ***
  • Posts: 85
  • Mole Snacks: +3/-2
Iron II Sulphate and Iron III Sulphate
« on: October 07, 2013, 10:18:14 AM »
Can anyone recommend a simple experiment to determine the presence of Iron II Sulphate or Iron III Sulphate?
e.g. you are given a sample and you want to know which it is. There is no need for ultra sensitive data, just a general determination of what it is? Any help appreciated as always.
Logged

Offline Hunter2

  • Sr. Member
  • *****
  • Posts: 2316
  • Mole Snacks: +191/-50
  • Gender: Male
  • Vena Lausa moris pax drux bis totis
Re: Iron II Sulphate and Iron III Sulphate
« Reply #1 on: October 07, 2013, 10:37:43 AM »
Do you know prussian Blue?

Iron-II  reacts with red ferricyanide to a dark blue color.
Iron-II do the same with yellow Ferrocyanide.

Other option is to add thiocyanate, what gives blood red color, if iron-III is present.
Logged

Offline Ballistic

  • Regular Member
  • ***
  • Posts: 85
  • Mole Snacks: +3/-2
Re: Iron II Sulphate and Iron III Sulphate
« Reply #2 on: October 08, 2013, 10:46:57 AM »
You're a star. Do you have any idea what the result would be if it was a mixture of the two?
Logged

Offline Hunter2

  • Sr. Member
  • *****
  • Posts: 2316
  • Mole Snacks: +191/-50
  • Gender: Male
  • Vena Lausa moris pax drux bis totis
Re: Iron II Sulphate and Iron III Sulphate
« Reply #3 on: October 08, 2013, 11:02:55 AM »
The mixture would show the same.

To determine both you can use Rheinhardt-Zimmermann Titration without SnCl2

or this receipe: http://www.123helpme.com/view.asp?id=122032
Logged
Pages: [1]   Go Up
« previous next »
Sponsored Links