• Welcome to Photrio!
    Registration is fast and free. Join today to unlock search, see fewer ads, and access all forum features.
    Click here to sign up

ORTAL

Latest Gallery

man arguing 1972

A
man arguing 1972

  • 4
  • 0
  • 18
Got milk

H
Got milk

  • 2
  • 0
  • 10

Recent Classifieds

Forum statistics

Threads
203,012
Messages
2,848,636
Members
101,599
Latest member
martto
Recent bookmarks
1
dr5chrome

dr5chrome

Member
Allowing Ads
Joined
Dec 29, 2006
Messages
461
Format
Medium Format
Was thumbing through an antique book of photography. It made reference to "ORTAL". Wondering if anyone knows about this reducing agent? All I could find is it's in the o-aminophenol family.

regards,, dw
 
Are you sure of the spelling? The developing agent Ortol is the addition compound of o-aminophenol and hydroquinone. As soon as it is dissolved in water it dissociates into these two developing agents.
 
Last edited by a moderator:
You must log in or register to reply here.
Photrio.com contains affiliate links to products. We may receive a commission for purchases made through these links.
To read our full affiliate disclosure statement please click Here.

PHOTRIO PARTNERS EQUALLY FUNDING OUR COMMUNITY:
Ilford ADOX Freestyle Photographic Stearman Press Weldon Color Lab Blue Moon Camera & Machine
Top Bottom