Aercus ✭✭✭✭

No, this is incorrect. Solvent effects cover solubility (including of intermediates) and are always present. A substance that is harder to dissolve will cause a reaction to proceed more slowly. A rea… (View Post)

Solvent effects are always present. If you have an impermeable, highly non-polar substance, dip will do nothing. Acetone or xylene might (depends). Most commercial dip has surfactants, so it can get … (View Post)

Dan is right, it's a 26-s. Note the serif on the 1. That wouldn't be present on a 20-s. However, I think it maybe was intentional alteration followed by some damage to hide the work. (View Post)

No halos around devices and the color is... Questionable at best. Pass. (View Post)

Very good question. Something does not need to be immutable to be able to measured against, however. Let's say "getting the same grade as a pcgs holder". Yes a coin may receive slightl… (View Post)