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  1. #1

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    anti-fungal/preservative for gum arabic solution

    Are there any easy to find alternatives to Mercuric Chloride or Thymol for preserving the gum arabic solution. I think I saw a bucket of Glycerine at the local art supply store... Of maybe something from the drugstore? Chlorhexidine?

    I know... I'm clutching at straws here...

    Any ideas?
    Be careful his bow tie is really a camera
    timeUnit

  2. #2

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    Maybe Descutan: Klorhexidinglukonat 4 g Polyoxyetylen-polyoxypropylen-kondensat Fettsyre-amidoalkyl-dimetylaminoxid Isopropanol D-glykono-lakton Renat vatten till 100 ml 1 påse resp. 1 svamp innehåller 25 ml lösning.
    Be careful his bow tie is really a camera
    timeUnit

  3. #3

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    Chlorhexidin alcohol contains: Klorhexidinglukonat 5 mg, etanol 56 % w/v, sterilt vatten.
    Be careful his bow tie is really a camera
    timeUnit

  4. #4

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    I was advised to use formaldehyde which appears to work - approx 7mls per 500mls of gum!

  5. #5

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    Well... formaldehyde isn't really easy to obtain in Sweden.

    I just found out that camphor is banned here... And thymol too, I guess. Any other ideas?
    Last edited by timeUnit; 07-31-2007 at 06:38 PM. Click to view previous post history. Reason: typo
    Be careful his bow tie is really a camera
    timeUnit

  6. #6

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    Surprised you can't get thymol... it'd work very well, I think. It's in mouthwash (Listerine) IIRC.

  7. #7

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    Sallicylic acid (aspirin) one pill per 100 ml solution. Works very well for me.

    regards,

    Jan

  8. #8

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    Jan,

    Thank you! I'll try that today!

    Jordan,

    I'm learning just how controlled Sweden is when it comes to chemicals... With the banning of thymol and camphor (and I think this is very old news), how are artists able to preserve their self mixed paints? As a photographer, keeping off the main track is quite difficult and expensive.

    Sweden is in many ways one of the most free societies I've been in. But with chemicals, it's like living in the DDR...
    Be careful his bow tie is really a camera
    timeUnit

  9. #9

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    Sodium Benzoate

    You can also use Sodium Benzoate. I use 1g per 100g of dry gum. My gum is still in perfect condition after 8 months...

  10. #10

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    Great! Thanks!

    I just mixed three crushed "Magnecyl" tablets in my 300 ml gum arabic solution. It seems the "fillers" in the tablets don't dissolve so well, but I'll be filtering the gum later, so hopefully it will be nice and clear tonight.

    Next time I'll try Sod. Benzoate.
    Be careful his bow tie is really a camera
    timeUnit

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