[pure-silver] Re: Thiocarbamide Toner

This is what I used. It's from pages 158 and 159 of Eddie Ephraums' _Creative Element: Darkroom Techniques for Landscape Photography_.

Bleach
Water at 40C                  750ml
Potassium ferricyanide      100g
Potassium bromide            100g
water to make 1 liter

It's diluted 1 part bleach to 9 parts water for use.

The Thiocarbamide Toner is as follows:

Solution A
Water at 40C               750ml
Thiocarbamide               100g
Water to make 1 liter

Solution B
Water at 30C         750ml
Sodium Hydroxide   100g
water to make 1 liter


SolA            SolB            Water            Image tone
10ml            50ml               500ml         purple brown
20               40                  500               cold-brown
30               30                  500               brown
40               20                  500               warm-brown
50               10                  500               yellow-brown


I used 60ml of A plus 60ml of B plus 1000ml water.

Peter

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