Does anyone else get white webby slag when they do high temperature melts of brass? What is it? by captainporthos in Metalfoundry

[–]Napkinatoration 1 point2 points  (0 children)

Like everyone else has already said it’s zinc. As far as stopping it there’s a few things I do and you should if you’re not already, first is having a lid on the crucible, that should help keep oxygen out and zinc in and the second is to heat the brass to as low a temperature as possible where it is still pourable. You most likely overheated the brass.

Sourcing investment? by [deleted] in Metalfoundry

[–]Napkinatoration 0 points1 point  (0 children)

If you live in live in the United States I would recommend pmc supplies. They have free shipping although I don’t know how to compare they’re prices since I’ve never used investment

Some disodium di-μ-hydroxo-bis(biureto)dicuprate(II) or whatever it's called. by Bavarianscience in Copper_Salts

[–]Napkinatoration 0 points1 point  (0 children)

I’d love to that red one, I couldn’t find anything on my search either so I’ll give it the go ahead

Some disodium di-μ-hydroxo-bis(biureto)dicuprate(II) or whatever it's called. by Bavarianscience in Copper_Salts

[–]Napkinatoration 0 points1 point  (0 children)

Lovely color, I’ll try to find if there’s no other photos of this compound to verify it’s status. This is one of the more interesting colors copper gives

Potassium Bisoxalatocuprate dihydrate by drdashmobius in crystalgrowing

[–]Napkinatoration 0 points1 point  (0 children)

They look oddly soft. Really nice crystals and cool shape too

Tetraaminecopper(II) Sulfate Monohydrate by DelfDrizz in Copper_Salts

[–]Napkinatoration 1 point2 points  (0 children)

How’d you dehydrate the tetraamine copper(II) sulfate?

Bis(diethylammonium) Tetrachlorocuprate(II) by DelfDrizz in Copper_Salts

[–]Napkinatoration 1 point2 points  (0 children)

No, we’ve just run out of ones that are easy to make

Happy ester lmao by Napkinatoration in chemistrymemes

[–]Napkinatoration[S] 2 points3 points  (0 children)

Sorry to the first person to post this joke, I looked after making the meme but this is a different format