P-Aminophenol 25g23108

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P-Aminophenol 25g

4-Aminophenol (or para-aminophenol or p-aminophenol) is the organic compound with the formula H2NC6H4OH. Typically available as a white powder,[3] it was commonly used as a developer for black-and-white film, marketed under the name Rodinal.

Reflecting its slightly hydrophilic character, the white powder is moderately soluble in alcohols and can be recrystallized from hot water. In the presence of a base, it oxidizes readily. The methylated derivatives N-methylaminophenol and N,N-dimethylaminophenol are of commercial value.

Unless graininess is desired, this developer is not recommended for faster films. This developer produces medium-grain negatives with good sharpness and is a good all-around developer for various films, even T-grain films. The contrast is variable and depends upon dilution and development times.

Used in preparation of 'Rodinal' type developers.

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P-Aminophenol 25g
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