Purity of metals

All I want to know is what these percentages mean 99% 2N 99.9% 3N     99.99% 4N   99.999% 5N     99.9999% 6N, and which one is bullion for these elements.

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Hi, SirPryse ! These are

Hi, SirPryse !

These are ultra high purity standards: 2N, 3N, 4N, 5N and 6N with parts per million (ppm) and parts per billion (ppb) level impurities certified.

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American element is the world

American element is the world leader in 99%, 99.9%, 99.99% and 99.999% high purity metal and powder. American Elements specializes in preparation and purification of compounds to ultra high purity standards-2N, 3N, 4N, 5N and 6N with parts per million (ppm) and parts per billion (ppb) level impurities certified.

for example: american elements can prepare aluminium chloride, erbium chloride and ytterbium chloride hydrates with iron and other transition metal less than 100 ppb. similar purity levels can be obtained with the other rare earth chloride.

I see.

I see.

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