Actually MS70 is just a catchy name. AFAIK, it is mostly potassium hydroxide.
Is that like Skelly A, B or C?
I just wonder how many people looked up soxhlet?
You can offer it here on CT.
Yep, sometimes "chemical perspective" doesn't cover all the possibilities of what might have happened.
Possibly, take it out of the holder and let it be exposed to air for a few weeks or months.
Or you could buy this "gorgeous" coin...
Perhaps @GDJMSP would address this.
Does that include nose oil or ear oil? :)
no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no no
Bought this at a flea market for $0.25 from a guy who lamented that someone would cut up an Indian cent... [ATTACH]
Close, the plastic material is PVC (polyvinylchloride) but the bad actor here is usually DOP or dioctylphthalate which is an oily chemical used as...
For rinsing, I would restrict myself to pure solvents, as @GDJMSP mentions, water, acetone and xylene with coin dip reserved for experiments and...
If you think that's in great shape, stick around awhile and see what some of these guys got 1
Wonder if he accepts checks or bitcoin...
Just a long and hard life.
Just assume that we are all on double secret probation and go from there... [ATTACH]
Since it's now 2018, would not a post from 2017 constitute a necropost?
That is the fact, I was just questioning the why. Perhaps zinc free of tin was difficult to obtain? The tin would have hardened the alloy, but...
Sorry but the cent coins in 1920 were copper. Welcome to CT
Separate names with a comma.
