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  1. #11
    mrred's Avatar
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    And that would be a formula for 10 times more, and not answering the question (already answered anyway)....
    Get it right in the camera, the first time...

  2. #12
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    Quote Originally Posted by mrred View Post
    potassium dichromate -- 9 gr
    Nasty stuff, take care.

    “The contemplation of things as they are, without error or confusion, without substitution or imposture, is in itself a nobler thing than a whole harvest of invention”

    Francis Bacon

  3. #13
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    Driving a car will get me killed faster. Both are safe when operated safely and the car has a greater possibility of being an exception.
    Get it right in the camera, the first time...

  4. #14
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    AFAIK it is a hexavalent chromium compound. Look up the MSDS. Extremely toxic and recommended usage under a fume hood and no dumping down the drain.
    Richard

    Why are there no speaker jacks on a stereo camera?

  5. #15
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    And I would repeat my last answer. I did say safely. Maybe now you can understand what I think of people with their ability to drive cars safely.
    Get it right in the camera, the first time...

  6. #16

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    After use the dichromate solution should be mixed with a sodium sulfite solution. This reduces any Cr (VI) which is very toxic to Cr III) which is less toxic before discarding. The yellow orange color of the dichromate will change to green.
    A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.

    ~Antoine de Saint-Exupery

  7. #17
    richard ide's Avatar
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    Thanks Gerald. Information appreciated.
    Richard

    Why are there no speaker jacks on a stereo camera?

  8. #18

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    Hi mrred
    AFAIK, I would rather work with your product than drive in Montreal. For sure it will kill you faster to drive there.
    Each and every chemical products we use can be dangerous if used improperly.
    It is our responsibility to use it the way it is intended for.

    And yes, your recipe looks like the one I had in my old Encyclopedia of photography, Focal Press, printed in 1972.

    Best regards,
    jacques@argentix.ca
    http://www.argentix.ca

    Film can be tested; not time. Stop talking and start shooting...

  9. #19
    mrred's Avatar
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    I've been give lots of correct advice to be safe when using dichromate. I am not sure why it was assumed I didn't, but thanks all the same. It was good advice and reaffirmed what I was doing.

    It's no secret the contempt I have for bad drivers. Most show high degrees of being inattentive at the best of times. For the record, I don't drive and probably never will (and I am over 50 now). If I treated my chemistry like I see most other people drive, I would have been dead a long time ago.

    Please remember this when you are in your "lab" on on the "road".

    Oh, Montreal has the worst drivers I have ever seen. They seem take great pride with the disrespect they give others on the road. I'm glad they don't all have darkrooms.
    Get it right in the camera, the first time...

  10. #20
    mrred's Avatar
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    Rant over...
    Get it right in the camera, the first time...

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