Black pyrogallol?!?

[dlbr]

I just got the fresh supply of pyrogallol from my local dealer, and it was all dark, nearly black. It look as crystaline powder, but black. Being no chemist, I could not argue with the guy, who kept telling me it is perfectly all right and that it should work no prob. Did you pyro guys think I should trust it or rather demand the replacement?

Thanks for help.

 

[payral]

Pyrogallol should be light grey (almost white) not black. I think you should sent it back.
I include a picture of mine which is almost two years old stock

 

[dlbr]

Thanks a lot, that is what I would expect pyrogallol to be. I will ask for the replacement, then.

 

[Crashbox]

Definitely not good, take it back.

I still have some pyro that's well over 20 years old and it is still white or nearly so; it has been well-stored of course.

 

[c6h6o3]

I just got the fresh supply of pyrogallol from my local dealer

Local dealer? for pyrogallol? where, pray tell, might that be?

 

[brucemuir]

I have a LIQUID PMK kit that is at least 7-8yrs new and the rim of the bottle gets dark black which I assume is from oxidation.
The liquid itself is still clearish and works fine.

 

[Gerald C Koch]

You don't say how the pyrogallol was packaged. I have had problems with some developing agents packed in plastic bottles. I have had pyrogallol keep for many years in glass bottles. Some plastics allow oxygen to diffuse into the container. I would recommend getting your money back.

 

[dlbr]

Local dealer? for pyrogallol? where, pray tell, might that be?

Dorapis, Prague, Czech Republic. Just puch it to google and you will see. I have this shop round the corner, which comes handy, though not without a downside ... .

Anyway, the matter has been concluded - I have received the replacement, which seems fine and proper.

 

[c6h6o3]

I'd be in hog heaven if I could buy pyro around the corner.

 

[keithwms]

Oxidized? Maybe it could still be saved. Or maybe the black is just because it hasn't been ground finely?

I'd try a bit before sending it back.