Would these or any of these (dry) chemicals: Metol, Sodium Sulfite, Hydroquinone, Borax keep indefinitely?
Would these or any of these (dry) chemicals: Metol, Sodium Sulfite, Hydroquinone, Borax keep indefinitely?
Stored well they all keep for years. I have Metol, Hydroquinone & Borax that's are at least 25 years old, some much older and they behave no differently than fresh supplies.
Ian
Thanks again Ian...25 years is indefinite enough for me
Cheers
Keep your bulk chems dry, cool and in the dark, and they will generally last a looooong time. A couple like glycin are rather fleeting, but most are pretty tractable.
What color is glycijn when it goes bad from storage?
What color is glycin when it goes bad from storage?
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