• DRBOB@VERDIENT.BIZ

    Member
    October 26, 2017 at 7:03 pm

    PH has to be maintained at 3.5 to 5.0 in solution.

  • belassi

    Member
    October 26, 2017 at 8:09 pm

    Good, thanks. But how to make it?

  • DRBOB@VERDIENT.BIZ

    Member
    October 26, 2017 at 8:39 pm

    Have not made it but here is a patent which may help, https://www.google.com/patents/US2199936

  • Bill_Toge

    Member
    October 26, 2017 at 8:53 pm

    can’t speak from personal experience, but the most foolproof way appears to be electrodialysis, as outlined in US patent 3616385

  • belassi

    Member
    October 26, 2017 at 10:18 pm

    Thanks for those. I read both patents. Now I understand the difficulty; it’s a question of purification, getting one product out of a mixture of five. I’ll give this a miss, it’s maybe of interest to larger companies. In terms of skin health I think it may be related to the bleach baths used by eczema sufferers.

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