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  1. #21

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    Bleach pH 5.5-5.7
    Potassium nitrate crystalline 30 g
    Potassium bromide 110g
    EDTA NaFe or NH2Fe Merck 110g
    water to 1litre
    Note teh nitrate is optional to protect stainless tanks

  2. #22

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    Stabiliser
    wetting agent 5.ml [Aerosol OT,anionic or any similar product 10% solution]
    Formaldehyde 35-40% 6.ml
    water to 1litre

  3. #23

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    I left out the colour developer and fixer since it seems they haven't generated much discussion.

  4. #24

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    Quote Originally Posted by Nick Zentena View Post
    First Developer pH 9.6 +/-0.1

    Calgon 2grams
    Sodium sulphite anhydrous 15g
    Potassium hydroquinone monosulphate pure 15g
    Diethylene glycol 20g
    Potassium carbonate anhydrous 15g
    Phenidone 0.4 g
    Sodium thiocyanate 20% solution 8ml
    Potassium bromide 1.8 grams
    Potassium iodide 1% solution 4ml
    water to 1litre

    I think the alternate is the Watkins
    Looks like the active agents are phenidone and hydroquinone...

    What sayeth PE?

  5. #25

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    Quote Originally Posted by Nick Zentena View Post
    Conditioning bath pH6.1

    Sodium sulphite anhydrous 10g
    EDTA Acid 8 g
    Thioglycerol 0.5ml
    water to 1litre
    I guess this is the old conditioner, instead of the newer pre-bleach -- Especially since the stabilizer you list has formaldehyde.

  6. #26
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    Nick;

    These are the correct formulas except:

    1. You cannot and must not use Sodium Ferric EDTA in the bleach.
    2. The first developer uses HYDROQUINONE MONOSULFONATE K salt. THIS IS NOT HQ.

    I stress this strongly. Also

    3. Note the presence of thiocyanate in the first developer!!!!!!!

    These changes are critical to the functioning of the first developer and bleach. Unfortunately, I don't have the color developer formula.

    The conditioner bath is correct. No current E6 process contains formalin AFAIK. The new couplers do not require it.

    PE

  7. #27

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    I can type in the colour developer if some body wants. It just seemed the discussion was centering on the other parts.

  8. #28
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    I didn't say anything Nick because I cannot remember that formula and have no copies here. IDK if it is right or wrong, but your track record would make me think that the BJP has the right formula. (except for NaFeEDTA being a no-no).

    Post the CD too.

    PE

  9. #29
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    I would like to add that many equate HQ with HQ monosulfonate, but they are not the same. HQMS is milder and diffuses differently. HQ begins development rapidly in the top layer before diffusion has even taken place.

    So, this upsets the balance of the development of the layers.

    The SCN is needed to completely develop the emulsion and clear out the dmin of the positive image by developing all of the coated silver.

    I cannot tell you the formulas, but I can tell you if you get it right.

    I hope you understand.

    PE

  10. #30

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    colour developer pH 11.6

    EDTA NA4 3g
    Potassium carbonate anhydrous 40g
    sodium sulphite anhydrous 4g
    potassium bromide 0.5 g
    potassium iodide 1% solution 3 ml
    citrazinic acid 1.2g
    hydroxylamine hydrochloride 1.5 g
    water to 1litre

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