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Any one provide me the exact chemical name of stabilizers, antifoggants and anti-bacterial preservatives for silver halide emulsion preparation

At which stage of emulsion we would take TEM study to find grain size ??? I mean before adding of dye and hardener (jelly state)?? or after added dye and hardener (liquid state)?? or after emulsion coated on glass substrate ( before exposed)??? or after recording ??? The thing is I want to know the ...

washing is done with the same , its alright now ... but the main drawback "sensitivity" is very low …. how can I improve the spectral sensitivity?

how to find emulsion thickness? please suggest me a good low cost testing any..

what are the effective washing methods for 0.5 and 3 % gelatin concentrated silver halide emulsion? and also how to improve the spectral sensitivity of the silver halide emulsion for 632.8 laser?

3-carboxymethyl-3',9-diethyl-5,5'-dimethylthiacarbocyanine betain dye is not matched in ORGANICA

Does any one know of any suitable dyes other then Pinacyanol to sensitize silver halide emulsion to red laser 632.8 nm ?

how can we maintain 50 degree temperature in dedicator?
during the dcg process meta bi sulfate best or thio sulfate best?