Salting and Sensitizing the Paper
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Salting and Sensitizing the Paper book
Salting and sensitizing the paper is a two-step process. If one mixes silver nitrate and sodium chloride together to make light-sensitive silver chloride, they glom onto one another and precipitate into a white curdy mass. The salting step can be carried out in bright light, because the paper is not photosensitive until the silver nitrate is applied. Once silver nitrate is applied to the paper, the rest of the steps should be carried out in dim room light. Sodium chloride, or common table salt, was one of many salts used for salted paper for two reasons: it was common and cheap. Sodium chloride and ammonium chloride are the two salts always used today. Sodium chloride is table salt, and can be bought at any grocery or health food store. Of all the processes, salted paper is 'brush-picky'. If there is any problem with coating, it will show up in the print and it is ruined.