school project - information needed

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Airgid

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Joined
May 3, 2007
Messages
2
Location
Norrköping,
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35mm
Hi,

I am sorry to barge in like this without any formal introductions, I promise I will make up for that one.

I used to do B&W photography in my teens and am trying to pick up the thread again ( not easy with two young children and studies :sad: )
I know how the process goes from developing film to the actual printing on photograhy paper.

Right now as a short task at the end of my spring term I decided to do a little project about the Chemistry of Photograpy. My problem is that the books I used to have on the subject got lost during my move to Sweden so I need help.

I need to know the basic chemicals that react to light in the filmroll. If I remember right is is some form of silvernitrate involved. What is the name of the chemical that fixates the filmroll? And of course I need to have the same for the actual printing, what responds to the light in the photography paper? And what fixates it?

I am gratefull for any assistance and/or links about this subject.
 

reub2000

Member
Joined
May 23, 2006
Messages
660
Location
Evanston, IL
Format
35mm
Film contains Silver Halides, and I think most of it is Silver Bromide. Fixer is either Sodium Thiosulfate or Amonium Thiosulfate.
 
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