Difference between revisions of "Ewesly / Holographic Formulae / Ferric Nitrate"
(Created page with "== Bleach solution == <p>20 g Glycerol<br /> 500 ml Deionized Water<br /> 500 ml Isopropyl Alcohol<br /> 300 mg Phenosafranine<br /> 150 g Ferric Nitrate<br /> 33 g Pot...") |
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One litre water</p> | One litre water</p> | ||
<p>Dilute 1 to 4 with water before use.</p> | <p>Dilute 1 to 4 with water before use.</p> | ||
| − | == Processing = | + | == Processing == |
<p><u>Bleaching time: </u>One and a half times the time it takes to clear.</p> | <p><u>Bleaching time: </u>One and a half times the time it takes to clear.</p> | ||
<p><u>Temperature:</u> 20C <u>Agitation:</u> Intermittent</p> | <p><u>Temperature:</u> 20C <u>Agitation:</u> Intermittent</p> | ||
Latest revision as of 22:06, 18 February 2014
Bleach solution
20 g Glycerol
500 ml Deionized Water
500 ml Isopropyl Alcohol
300 mg Phenosafranine
150 g Ferric Nitrate
33 g Potassium Bromide
One litre water
Dilute 1 to 4 with water before use.
Processing
Bleaching time: One and a half times the time it takes to clear.
Temperature: 20C Agitation: Intermittent
For rehalogenation after fixing. Hans Bjelkhagen prefers this over the simpler GP 431 formulation for pulsed masters developed in Neofin Blau diluted 1:1.
Shelf life: This stock solution lasts indefinitely, working solution about one week.
Source: N. J. Phillips and D. Porter, "An Advance in the Processing of Holograms," Journal of Physics E: Scientific Instruments 9, 631 (1976).
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