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- The Aniline Process
- The Primuline Or Diazotype Process
- The Cuprotype Burnett's Process
- A Poitevin's Process 1870
- The Cyanofer Pellet's Process
- The Cyanotype Or Blue Process
- The Uranotype
- Graphotypy
- Dr Tl Phipson's Process 1861
- Choice Of Paper Sizing

Least Viewed

- Causes Of Failures
- Preparation Of Red Yellow Or Blue Tissues
- Tracing Process On Metal
- X's Process 1865 Secrets Of The Uranotype
- Houdoy's Process 1858
- Godefroy's Process 1858
- Printing On Wood Canvas Opal And Transparencies
- How To Make A Negative Drawing
- Guarbassi's Process 1867
- Cj Burnett's Process 1857

X's Process 1865 Secrets Of The Uranotype

Preparation of the Uranium Compound.--Precipitate the nitrate of uranium
from its solution by concentrated liquid ammonia. Let settle the
precipitate, decant, and wash in several changes of water. Dissolve it by
heat in pure nitric acid, taking care not to add an excess of acid. The
ammonio-nitrate of uranium salt is then crystallized and dried. Mix a
solution of 6 drams of this salt, dissolved in 3 drams of water, to a
solution of 15 grains of silver in 30 minims of water, and crystallize.
This salt is called ammonio-nitrate of uranium and silver.

SENSITIZING SOLUTION.
Ammonio nitrate salt 3 drams
Alcohol 8 drams
Distilled water 15 drops
Nitric acid, pure 1 drop

Plain Collodion.--Dissolve in a small quantity of ether 1 dram of Canada
balsam and 1 dram of castor oil, filter and let evaporate the solution to
the consistency of oil.

Of this, add 10 minims to a collodion made of

Alcohol 10 ounces
Ether 20 ounces
Pyroxyline 220 grains

SENSITIVE COLLODION
Plain collodion 12 drams
Sensitizing solution 6 drams
Nitric acid 2 or more drops

Keep this collodion in the dark, as it is quite sensitive.

PREPARATION OF THE PAPER
Arrowroot, pulverized 1 ounce
Water 32 ounces
Solution of acetate of 10 drops
lead

Heat to 100 deg. Fahr. and then add four ounces of albumen. The paper is
floated on this solution for five minutes and hung up to dry. The sizing
may also be applied with a sponge in the manner often described.

The proofs should be slightly over-printed and, before toning and fixing,
placed for about ten minutes in the following solution:

Distilled water 40 ounces
Acetic acid 1 ounce
Hydrochloric acid 1 ounce

After washing in several changes of water, the proofs may be toned in any
toning bath, and then fixed with sulphocyanide of potassium, washing
afterwards in the usual manner.





Next: The Platinotype
Previous: H Cooper's Process 1865

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