What is this Kodak Chemical?

Discussion in 'Color: Film, Paper, and Chemistry' started by Stephen Frizza, Jul 20, 2013.

  1. Stephen Frizza

    Stephen Frizza Member

    Messages:
    1,438
    Joined:
    Mar 2, 2007
    Shooter:
    Medium Format
  2. Ian Grant

    Ian Grant Subscriber

    Messages:
    18,039
    Joined:
    Aug 2, 2004
    Location:
    West Midland
    Shooter:
    Multi Format
    It's activated charcoal, it's used to take dyes & general discolouration out of solutions, it can have other purposes as well, you can use it to take out oxidised organic compound from a solution. You regenerate it by heating at a high temperature.

    I need some but not at that price :D to take the colour out of Meths (methylated spirits) which I use for French polishing.

    Ian
     
  3. clayne

    clayne Member

    Messages:
    2,837
    Joined:
    Sep 4, 2008
    Location:
    San Francisc
    Shooter:
    Multi Format
    100% pure LSD.
     
  4. paul_c5x4

    paul_c5x4 Subscriber

    Messages:
    1,916
    Joined:
    Apr 22, 2009
    Location:
    Ye Olde England
    Shooter:
    Large Format
    You can get Industrial Denatured Alcohol (IDA) which is meths without the methyl violet and has the advantage that it is 99% alcohol rather than the regular 90% of meths. The downside is the requirement to have authorisation from HMRC, but for small quantities, it is a fairly quick application process.

    Update: HMRC published a proposal in April to change the formulation of CDA (a.k.a. meths) to bring it in line with the rest of the E.U. - Upshot is that there will no longer be a requirement to add a dye for meths sold in the UK.
     
  5. Ian Grant

    Ian Grant Subscriber

    Messages:
    18,039
    Joined:
    Aug 2, 2004
    Location:
    West Midland
    Shooter:
    Multi Format
    Paul, I have everything needed to distill my own alcohol which is now legal in the UK although not publicised. Because it was legal for farmers to make small quantities of Calvados in France it meant the restrictions were lifted in the UK. It's just the time and effort required, filtering meths is easy :D

    Ian
     
  6. brucemuir

    brucemuir Member

    Messages:
    2,266
    Joined:
    Dec 25, 2007
    Location:
    Metro DC are
    Shooter:
    Multi Format
    I've seen that seller for quite a while and his pricing practices are a bit odd.
    For awhile he was making the actual price real cheap with exorbitant shipping fees and then he went to free shipping with outrageous purchase prices.
    Most of his stuff seems like it was sitting in a warehouse also.
     
  7. Mustafa Umut Sarac

    Mustafa Umut Sarac Member

    Messages:
    4,574
    Joined:
    Oct 29, 2006
    Location:
    İstanbul
    Shooter:
    35mm RF
    Ian ,

    I made 3 liters of white whisky with sugar, water and bread yeast. It was the most wonderful alcohol I have ever drinked. If you distill your alcohıol , you get ethyl. By the way I freeze distill it 3 times. How did you accomplish to distill purple methyl ?
     
  8. Gerald C Koch

    Gerald C Koch Member

    Messages:
    6,245
    Joined:
    Jul 12, 2010
    Location:
    Southern USA
    Shooter:
    Multi Format
    Eastman Chemical Company was one of many companies under the Kodak umbrella. It produced many chemicals not only for Kodak but for general sale too. It's not correct to assume that anything labeled Eastman Chemical is directly connected with film production or processing.