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Using Acetone on 40% Silver coins
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<p>[QUOTE="desertgem, post: 2681402, member: 15199"]I do not think the residue is from the cellophane, unless it was heated way above normal storage, but it can allow diffusion of chemicals in moisture or air ( Do not only read the Wiki part about 'low permeability' because they are not considering long term ( years) of storage as usually food products in cellophane are shorter term. However in general biology class, and old fashion dialysis machines they used cellophane as a barrier to allow substances including water to move across the membrane from high to low concentration. Cigars are still commonly wrapped in cellophane so they can exchange moisture to the preferred humidity in storage.</p><p><br /></p><p>I suspect the haze is from storage environmental effects and the reaction will only be removed by a material such as EZest ( Jeweluster for old timers. Dilute well for use.[/QUOTE]</p><p><br /></p>
[QUOTE="desertgem, post: 2681402, member: 15199"]I do not think the residue is from the cellophane, unless it was heated way above normal storage, but it can allow diffusion of chemicals in moisture or air ( Do not only read the Wiki part about 'low permeability' because they are not considering long term ( years) of storage as usually food products in cellophane are shorter term. However in general biology class, and old fashion dialysis machines they used cellophane as a barrier to allow substances including water to move across the membrane from high to low concentration. Cigars are still commonly wrapped in cellophane so they can exchange moisture to the preferred humidity in storage. I suspect the haze is from storage environmental effects and the reaction will only be removed by a material such as EZest ( Jeweluster for old timers. Dilute well for use.[/QUOTE]
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