Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 69,727   Posts: 1,515,177   Online: 965
      
Results 1 to 3 of 3
  1. #1

    Join Date
    Nov 2010
    Location
    São Paulo, Brazil
    Shooter
    8x10 Format
    Posts
    32

    Substituting AMP-95 for TEA in PC-TEA?

    Hello all,

    I'm trying to make up a batch of PC-TEA here in Brazil. Phenidone and Ascorbic Acid were easy to find, but it turns out I need an special Army authorization to purchase TEA. Someone suggested I use AMP-95 to replace TEA.

    Has anyone ever tried this?

  2. #2

    Join Date
    Jul 2010
    Location
    Southern USA
    Shooter
    Multi Format
    Posts
    3,769
    If you substitute AMP-95 for the TEA then the pH of the resulting developer solution would be too high. For comparison the pH of a 0.1M solution of the two amines is given as 10.5 for TEA and 11.3 for AMP-95. The developer would have to be reformulated using less AMP-95. I would suggest switching to PC-glycol.
    Last edited by Gerald C Koch; 05-02-2013 at 11:12 AM. Click to view previous post history.
    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

  3. #3

    Join Date
    Nov 2010
    Location
    São Paulo, Brazil
    Shooter
    8x10 Format
    Posts
    32
    Gerald,
    Thanks for your reply.
    I have started a process to obtain a free sample of AMP-95.
    I'll give it a try and report back.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin