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Thread: what is Kodalk?

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    Stephen Frizza's Avatar
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    what is Kodalk?

    just as the thread suggests what is Kodalk?
    "Its my profession to hijack time" ~ Stephen Frizza.

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    Sodium metaborate - see http://silvergrain.com/labs/Metaborate

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    Kodalk is Sodium Metaborate.

    http://en.wikipedia.org/wiki/Borate

    Tom

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    Stephen Frizza's Avatar
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    hehehe i realised this just after asking it, though im now curious why did it get called Kodalk?
    "Its my profession to hijack time" ~ Stephen Frizza.

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    Ian Grant's Avatar
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    I wrote it down for you in the other thread, I rarely call it Kodalk

    Kodalk - Kodak Balanced Alkali

    Ian

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    Quote Originally Posted by Stephen Frizza View Post
    hehehe i realised this just after asking it, though im now curious why did it get called Kodalk?
    for the same reason
    they called metol --- elon
    to be different

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    Quote Originally Posted by Stephen Frizza View Post
    just as the thread suggests what is Kodalk?
    It was Kodak's proprietary formula; an alkali containing sodium metaborate. It is no longer made. I substitute sodium metaborate without issues.
    John, Mount Vernon, Virginia USA

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    Ian Grant's Avatar
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    Quote Originally Posted by jnanian View Post
    for the same reason
    they called metol --- elon
    to be different
    Marketing Hype to make it sound as if it's a Kodak proprietary chemical.

    They gave many developers, papers etc names in the 20's and 30's only to drop them again later because they were so confusing.

    Kothena, Kodesko, Kodatone, Kodura, Kodascpe (projector), Kodachrome, Kodatol (DK20), Kodinol (Rodinol type dev), Kodurol (glycine), that's just a start. . . .

    Then silly names like Dolmi - amidol

    Most names reverted back Kodesko to Bromesko etc, just a few remained Kodalk, Kodachrome.

    Ian

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    Ian Grant's Avatar
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    Quote Originally Posted by Anscojohn View Post
    It was Kodak's proprietary formula; an alkali containing sodium metaborate. It is no longer made. I substitute sodium metaborate without issues.
    It was made elsewhere too in the 30's Agfa Ansco mused it as well, Kodalk was nothing more than pure Sodium Metaborate

    A perfect substitution can be made by adding NaOH to Borax, in the correct proportions.

    Ian



 

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