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In the processing of photographic films, plates or papers, the photographic developer (or just developer) is one or more chemicals that convert the latent image to a visible image. Developing agents achieve this conversion by reducing the silver halides , which are pale-colored, into silver metal, which is black when in the form of fine ...
[10] The film is washed, stabilised, dried and cut. [11] In the RA-4 process, the bleach and fix are combined. This is optional, and reduces the number of processing steps. [12] Transparency films, except Kodachrome, are developed using the E-6 process, which has the following stages: A black and white developer develops the silver in each ...
Compared to TAED, which is the predominant bleach activator used in Europe, NOBS is efficient at much lower temperatures. At 20 °C NOBS is 100 times more soluble than TAED in water. [ 5 ] When attacked by the perhydroxyl anion (from hydrogen peroxide), NOBS forms peroxynonanoic acid (a peroxy acid ) and releases the leaving group sodium 4 ...
Metol is an excellent developing agent for most continuous tone developer applications, and it has been widely used in published developer formulas as well as commercial products. However, it is difficult to produce highly concentrated developer solutions using Metol, and therefore most Metol developers are supplied in dry chemical mix.
Sodium hypochlorite is still the most important chlorine-based bleach. [10] [11] Its corrosive properties, common availability, and reaction products make it a significant safety risk. In particular, mixing liquid bleach with other cleaning products, such as acids found in limescale-removing products, will release chlorine gas.
On the night in Miami when he joined — created, really — baseball's 50-homer, 50-steal club, he hit three home runs, stole two bases and drove in 10 runs on a 6-for-6 night. From way downtown
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