Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Iodine test for stearic acid

  1. Oct 30, 2011 #1
    In my lab at college we were analysing various pharmaceutical excipients, stearic acid being one of them. We did an iodine value test on it. From what I've read, the iodine-value test is to determine the degree of unsaturation of a compound. Stearic acid is a saturated fatty acid so I don't understand how this test can be performed on it. It was a raw material sample we were analysing like you would do if you were a quality assurance analyst for a pharmaceutical company. What purpose could performing an iodine value test on a stearic acid raw material sample serve?
  2. jcsd
  3. Oct 30, 2011 #2


    User Avatar

    Staff: Mentor

    Just guessing - if the result is anything but zero, you know you have unsaturated impurities.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Similar Threads for Iodine test stearic
How can I test the ph of foods