3 replies to this topic

[Spiral Architect]

Looking for a source of high-purity powder. 

 

Is anyone familiar with this seller?

https://www.ebay.com...353.m2749.l2649

 

 

[Johnatron]

eBay has High risk. From My Spectrometer testing, a few reliable lab suppliers of AR and LR grade Showed moderate But manageable levels of copper zinc and barium. Anything other than AR or USP grades would be a risk. The tricky part is getting an account with a lab supplier. I use microscropy grade solution. 

[Spiral Architect]

eBay has High risk. From My Spectrometer testing, a few reliable lab suppliers of AR and LR grade Showed moderate But manageable levels of copper zinc and barium. Anything other than AR or USP grades would be a risk. The tricky part is getting an account with a lab supplier. I use microscropy grade solution. 

 

Where did you find that.. ?

[pamojja]

Any source of MB most likely not contaminated in the EU?