Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 68,712   Posts: 1,482,988   Online: 839
      
Results 1 to 3 of 3
  1. #1
    wilsonneal's Avatar
    Join Date
    Feb 2006
    Location
    Northern NJ
    Shooter
    8x10 Format
    Posts
    578
    Images
    17

    EDTA Di- versus Tetra

    I've seen conflicting information on whether it's the Di- version or the Tetra- version that we should use for clearing baths in PtPd. What's the difference? If you order one instead of the other by mistake, is it unusable?
    Neal

  2. #2

    Join Date
    Mar 2003
    Location
    Greenville, SC
    Shooter
    Large Format
    Posts
    4,813
    Images
    5
    One (Di-version) is acidic, the other (Tetra-version) is alkaline.

    Disodium EDTA is the best one for clearing pt/pd and kallitype.

    Sandy

  3. #3
    wilsonneal's Avatar
    Join Date
    Feb 2006
    Location
    Northern NJ
    Shooter
    8x10 Format
    Posts
    578
    Images
    17

    EDTA in Ferric #1 and Sources

    Quote Originally Posted by sanking View Post
    One (Di-version) is acidic, the other (Tetra-version) is alkaline.

    Disodium EDTA is the best one for clearing pt/pd and kallitype.

    Sandy
    Okay, thanks for that. I got some DiSodium. Can this also be used when making Ferric Solution #1, or is it better to use Tetra for that? The confusing thing is that B&S packs Tetra in their kits.

    Also, the least expensive source I've found for EDTA appears to be Artcraft, does anyone have a less expensive source? The Chemistry Store doesn't carry this.

    Thanks
    Neal



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



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