Sodium chloride for hypo clear?

Discussion in 'B&W: Film, Paper, Chemistry' started by WarEaglemtn, Nov 13, 2005.

  1. WarEaglemtn

    WarEaglemtn Member

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    Sodium sulfite is the main ingredient of most hypo clearing agents. The US Navy photogs found out in WWII that sea water cleared fixer from negs & prints faster than clean water. Would normal table/water softener salt work well for hypo clearing purposes? Any downside to using a mix of it?
     
  2. lee

    lee Member

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    are you planning to make a quick run to the lake by any chance Dan? On a more serious note will sodium chloride disolve in water? I use sod sulfite in water to act as hca now it would be cheaper to use table salt.

    lee\c
     
  3. David A. Goldfarb

    David A. Goldfarb Moderator Staff Member Moderator

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    Sea water was the original fixer, but it took a long time and a lot of water.

    I've used salt water to clear Type 55 negs upon occasion, and it seems to work as well as sodium sulfite for that.