March 29, 2024, 09:51:55 AM
Forum Rules: Read This Before Posting


Topic: Removing calcium chloride impuroty  (Read 1520 times)

0 Members and 1 Guest are viewing this topic.

Offline Sonamjain

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Removing calcium chloride impuroty
« on: January 28, 2019, 09:05:40 AM »
I am making magnesium chloride hexahydrate. I need to remove calcium chloride from it. It is present upto 1000 ppm. I need it below 100 ppm. How do I do it. Will sodium icalate or sodium bicarbonate help?

Offline chenbeier

  • Sr. Member
  • *****
  • Posts: 1348
  • Mole Snacks: +102/-22
  • Gender: Male
Re: Removing calcium chloride impuroty
« Reply #1 on: January 29, 2019, 04:37:51 PM »
By Adding of other salts zoe van precipitate the Calcium, but you exchange the Calcium by sodium and carbonate.

Normaly crystallisation processes are used.

Offline AWK

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7979
  • Mole Snacks: +555/-93
  • Gender: Male
Re: Removing calcium chloride impuroty
« Reply #2 on: January 29, 2019, 07:12:44 PM »
Calcium and magnesium chlorides hexahydrates are probably isomorphous. Check at which temperature they form different hydrates. Crystallization at controlled temperature range may solve your problem.
AWK

Sponsored Links