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Photo Forum / Film Photography / Darkroom / August 2003ID-11 stability
I've read that the Stock solution made dissolving A and B components of Ilford ID-11 developer in the appropriate amount of water can be considered stable for 6 months in a fullfilled bottle. Is it true? Is it better to use demineralized water to prepare it? Thanks piterengel >I've read that the Stock solution made dissolving A and B components >of Ilford ID-11 developer in the appropriate amount of water can be >considered stable for 6 months in a fullfilled bottle. Yes. >Is it true? Is >it better to use demineralized water to prepare it? Yes. Regards John S. Douglas, Photographer http://www.darkroompro.com 1. If your ID-11 stock solution last six months you're not spending enough time in the darkroom! 2. Subdivide your mixed stock solution into smaller, glass, bottles. Fill them within a 14 of the top, the solution does not need to brim over the bottle lip. Real Saran wrap under the screw cap will eliminate even more oxygen migration, and you may want to test refrigeration Vs room temp storage since all chemical reactions occur slower at lower temps. -- darkroommike ---------- > I've read that the Stock solution made dissolving A and B components > of Ilford ID-11 developer in the appropriate amount of water can be [quoted text clipped - 4 lines] > > piterengel > I've read that the Stock solution made dissolving A and B components > of Ilford ID-11 developer in the appropriate amount of water can be > considered stable for 6 months in a fullfilled bottle. Is it true? I believe so. Inquire with Ilford to be sure. > Is > it better to use demineralized water to prepare it? Yes. > Thanks > > piterengel : I've read that the Stock solution made dissolving A and B components : of Ilford ID-11 developer in the appropriate amount of water can be : considered stable for 6 months in a fullfilled bottle. Is it true? Is : it better to use demineralized water to prepare it? : Thanks : piterengel Ilford's data sheet for ID-11 indicates that tightly capped full bottles of ID-11 will last for 6 months. See http://www.ilford.com/html/us_english/PDF/ID-11.pdf. Warren B. Hapke wbhapke@prairienet.org |
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