Beilstein test and a cappuccino.

Tested some flips that claim to be PVC free. The results speak for themselves.

Halogens detection...




I believe this confirmed detection of halogens in the flip.

The cappucino tested positive for delicious.

Thanks to the members here for the advice.
Related thread...
https://www.cointalk.com/threads/pvc-free-flips.388455/#post-7982581

 

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? ?

 

those rascals..... what brand of flip?

 

One detail to consider, the PVC doesn't cause the green slime residue, it is the plasticizer used to soften the PVC that reacts with moisture to form HCl. However, I don't know if they use an "archival" plasticizer on those flips (is there even such a thing?), so it's probably best to avoid any soft PVC. The SafFlips aren't that much more expensive and you can always use 2x2s for cheap coins (that's what I do).


I used to have the full chemical reaction written out, but the file got lost during computer changes over the last 20 years.

Edit to add: I think the plasticizer has Cl in it too, so it would also give a positive reading on the test if the concentrations were high enough

 

Wow ! It's just like being at a concert !

 

Seeing the flame gif, the theme song to Mission Impossible just started playing in my head.

 

Looks more like the inside of a theater that’s showing The Rocky Horror Picture Show. “Give me a Light” is said in the movie and the audience lights their lighters and holds them up. Lol

 

I find the members reaction to fire to be more interesting than the flips reaction to it.

 

One year of storage in a Ziploc style bag. I assumed this foggy deposit was light pvc residue. I was under the impression that if left on the surface of the coin for too long will then turn green. Please correct me if this is some other type of contamination.
Acetone easily removes it (image 3) but not soap and water.

 

What?
IDK.

 

All you ever need to know about plasticizers ....but will never read

https://polymer-additives.specialchem.com/selection-guide/plasticizers

Jim

 

edited for content by myself,
carry on just be careful, that test has killed people, specifically form offgassing chloro-dioxins depending on what the sample being tested turns out to be.

 

LOL I was smelling it.. I noticed it smells like heat shrink packaging. I used to heat shrink medical labels so I am very familiar with the smell. It's kind of sweet and pleasurable as opposed to the horrible smell of melting typical plastic. Also I noticed it did not burn It could only be scorched as opposed to typical plastics that will hold a flame like a candle. I washed it down with a beer. I think I'm good. But I'm a bull. I do not endorse inhaling anything other than man made pollution.

 

vinyl.... and PVC free,,,,, sign me up! gonna make me some Jawa capes.

Vinyl is basically shorthand for PVC, that should be a red flag right there.

I gave up on flips, just buying 2x2s with mylar windows nowadays. too hard for me to tell whats legit and what's not.

 

Mylar is a brand name of Dupont which does not produce it anymore. It has become a marketing term. This is why I entertain testing and seeing for myself.

 

It seems possible these flips may not contain poly vinyl chloride but it does not mean they do not contain another type of polymer- plasticizer combination which is apparently an unstable combination when exposed to certain conditions. I do not know if this test confirms if this material in safe for archival storage or not. I was curious about it because it was suggested in an article by NGC and I am only observing and sharing, and my claim and conclusion which is... "I think, this test shows evidence of halogens".

 

mmmmmmmmmm... could also have been from the salt on your fingers if you touched the wire (even when it was cold), doesn't really look green to me.