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Thread: Rollei black magic #2

  1. #11

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    Re: Rollei black magic #2

    I did some review for the BLACKMAGIC RM2
    it is old !!! and YES you have to grind it down !!! [spot on Tin Can !!]

    Rollie has a special jar to heat it up ??!! I never knew it !! still looking in to it ....

  2. #12
    multiplex
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    Re: Rollei black magic #2

    Quote Originally Posted by joho View Post
    I did some review for the BLACKMAGIC RM2
    it is old !!! and YES you have to grind it down !!! [spot on Tin Can !!]

    Rollie has a special jar to heat it up ??!! I never knew it !! still looking in to it ....
    this might help you decide what NOT to use to grind it
    https://byjus.com/chemistry/reactivity-series/

  3. #13

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    Re: Rollei black magic #2

    jnantz,
    page will not open, restricted ??? , not for this area?? Service Unavailable in EU region ????

    IRON CURTAIN

  4. #14

    Join Date
    Feb 2016
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    212

    Re: Rollei black magic #2

    Quote Originally Posted by joho View Post
    jnantz,
    page will not open, restricted ??? , not for this area?? Service Unavailable in EU region ????

    IRON CURTAIN
    Byjus appears to be an Indian company, but whether this website belongs to them is unclear. The address is registered via GoDaddy, so the owner details are not immediately available.

  5. #15
    multiplex
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    Re: Rollei black magic #2

    Quote Originally Posted by joho View Post
    jnantz,
    page will not open, restricted ???
    it is a website that contains a list of "reactive metals" .. I can't remember them all
    you can find a different website by typing in "reactive elements on periodic table" in any search engine
    here's a partial list: aluminum, cobalt, nickel, lead, tin, copper iron, zinc, chromium

    these elements will cause problems if used them to crush your block to make granules, grains and dust
    .. when I say cause problems I mean most likely fog/contaminate it ...


    wear a mask, breathing in silver chloro bromide dust can't be good for your health.
    after you grind and crush it are you going to suspend it in gelatin ?
    looking forward to the pointillist / impressionist images!
    Last edited by jnantz; 3-Jun-2023 at 05:11.

  6. #16

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    Re: Rollei black magic #2

    " these elements will cause problems if used them to crush your block to make granules, grains and dust
    .. when I say cause problems I mean most likely fog/contaminate it ..."

    I would have used a tin cheese grader !!!!!! well so much for that idea!!

    jnantz thanks for the tip !!

  7. #17
    multiplex
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    Re: Rollei black magic #2

    Quote Originally Posted by joho View Post
    I would have used a tin cheese grader !!!!!! well so much for that idea!!

    jnantz thanks for the tip !!
    yw

    yea. probably not the best solution...
    but crushing the emulsion is the least of your problems

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