Selenium toner. | |||
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Selenium toner. Back in the dark ages photography involved soaking paper in a series of strange chemicals to make images appear on it. This 22g/l solution of sodium selenide was apparently one of them. Source: eBay seller 20fec Contributor: Theodore Gray Acquired: 24 March, 2009 Text Updated: 24 March, 2009 Price: $15 Size: 10" Purity: 1% | |||
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