×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

making sulphate ion visible

making sulphate ion visible

making sulphate ion visible

(OP)
Does anybody know if there exist a compound that would, when applied over a surface, proved the presence of sulphate ion as colored spots?
m777182

RE: making sulphate ion visible

What is the surface?
A little more details please.

RE: making sulphate ion visible

(OP)
Inert smooth ceramics covered with droplets of NaSO4 that were evaporated and left tinny crystals of said Na2SO4.
M777182

RE: making sulphate ion visible

Here are specific ion test strips for sulphate.  They are available through most large chemical supply houses.
I don't have any of my quantitative chemistry books around and I don't know if there is any spot test for sulphate. The old quick and dirty method was to add a little barium chloride to a solution and look for a white precipitate.

https://www1.fishersci.com/Coupon?gid=209248&cid=1328

http://www.vgdllc.com/ion_test_strips.htm

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources