Fe(III) in solution- violet or yellow?

Chemistry discussion, revision, exam and homework help.

This thread is sponsored by:
Announcements Posted on
Important: please read these guidelines before posting about exams on The Student Room 28-04-2013
Search Thread
Advanced Search
Sign in to Reply
  1. shanban's Avatar
    1 13-06-2012  14:18
    • Junior Member
    • Posts: 59
    Fe(III) in solution- violet or yellow?
    I'm a little confused as to what the colour of [Fe(H20)6]3+ is...my textbook says it's pale violet but then the CGP revision guide says it's yellow?
  2. lamalas600's Avatar
    2 13-06-2012  14:52
    • Respected Member
    • Posts: 204
    Re: Fe(III) in solution- violet or yellow?
    Purple/Yellow/Brown mines says, however it gives off brown ppt soo...
    Post rating:
    1
  3. charco's Avatar
    3 13-06-2012  14:56
    • Community Assistant
    • TSR Idol
    • Location: here and there
    • Posts: 9,757
    Re: Fe(III) in solution- violet or yellow?
    (Original post by shanban)
    I'm a little confused as to what the colour of [Fe(H20)6]3+ is...my textbook says it's pale violet but then the CGP revision guide says it's yellow?
    I believe it's purple when pure, but the Fe(III) hexaaqua ion hydrolyses rapidly to produce a quantity of Fe(OH)3, which is brown, so a yellowish colouration is usually seen in aqueous solution.
    Post rating:
    1
Sign in to Reply
Search Thread
Advanced Search
Share this discussion:  
Useful resources

Articles:

Study Help rules and posting guidelinesStudy Help Member of the Month nominationsGuide to ChemistryChemistry resourcesChemistry revision notes in the TSR wiki

Quick Link:

Unanswered Chemistry Threads

Groups associated with this forum:

View associated groups
Article updates
Moderators

We have a brilliant team of more than 60 volunteers looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is moderated by:

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22

Registered Office: International House, Queens Road, Brighton, BN1 3XE

Shortcuts

Get Started

TSR Group

Using TSR

Info

Connect with TSR

Reputation gems:
The Reputation gems seen here indicate how well reputed the user is, red gem indicate negative reputation and green indicates a good rep.
Post rating score:
These scores show if a post has been positively or negatively rated by our members.