Sodium citrate developer for Kallitype

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Kenichi

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Hello.

I want to make sodium citrate developer for Kallitype. Which powder should I use?

Monosodium citrate?
Disodium citrate?
Trisodium citrate?

Thanks!
 

bernard_L

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Andrew O'Neill

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I just was down in the darkroom and mixed up my own sodium citrate developer from scratch. At a 3 to 1 ratio, I mixed in 3 heaping tablespoons of baking soda to 800ml tap water. Once thoroughly dissolved, I slowing mixed in 1 heaping tbls of citric acid. Topped off to one litre with water.
The print looks mmmmarvelous wet but we'll see how it looks when it has dried.
 
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Kenichi

Kenichi

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Thank you all.

Bostick & Sullivan sells this type C6H5Na3.2H2O. I'll try to use 20% solution of Trisodium citrate dihydrate and Andrew's developer.
 

Andrew O'Neill

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Kenichi, Yokkaichi, is that near Nagoya? I lived way down in Kurume, near Fukuoka for many years. How are photo supplies for you there? Asking because I'll be going through there in December... thanks!
 
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Kenichi

Kenichi

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Oh really, Andrew!

Yes, Yokkaichi is near Nagoya. There are some DPE shops and used camera shop in yokkaichi. But if I want to get a new film camera, B&W films ( Kodak, ILFORD, Fujifilm etc. ), lens filters, Tripods, Darkroom supplies..., I have to go to Biccamera in Nagoya.

Photo Gallery International in Tokyo sells alternative photo supplies. I bought Japanese Hake brush from them.

Please enjoy your stay in Japan!
 

Andrew O'Neill

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I have also used sodium carbonate (washing soda) in place of baking soda. You end up with a more potent developer compared to baking soda, and a darker print. Print colour is the same.
 
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Kenichi

Kenichi

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Thank you jorj and Andrew. I'll try to use jorj's sodium carbonate & citric acid version too.

Why photo chemists write "Sodium citrate" in their formula?
Why they don't write "Sodium citrate tribasic dihydrate" in their formula?

I feel like I understand that reason. Maybe... there are many varieties of Sodium citrate.
 
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