November 22, 2024, 11:25:45 PM
Forum Rules: Read This Before Posting


« previous next »
Pages: [1]   Go Down

Topic: Prevention of rusting  (Read 3513 times)

0 Members and 1 Guest are viewing this topic.

dpsguy

  • Guest
Prevention of rusting
« on: September 07, 2005, 06:37:38 AM »
 :-\I know that MgCl2 is delinquescent,i.e. it absorbs water from the air .So why can't we use a coating of MgCl2 on iron objects to prevent rusting,as water is essential for it?Is there something wrong here? Or is this method already in use?
Logged

Offline xiankai

  • Chemist
  • Full Member
  • *
  • Posts: 785
  • Mole Snacks: +77/-37
  • Gender: Male
Re:Prevention of rusting
« Reply #1 on: September 07, 2005, 06:57:42 AM »
i dont see how u could coat MgCl2 on the iron.
Logged
one learns best by teaching

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27855
  • Mole Snacks: +1813/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re:Prevention of rusting
« Reply #2 on: September 07, 2005, 08:07:19 AM »
It will not work.

MgCl2 is highly hygroscopic which means that it will soon get wet - and dissociated. That will speed up the corrosion instead of slowing it.
Logged
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info
Pages: [1]   Go Up
« previous next »
Sponsored Links