It's inorganic, has simple structure and contains only non-toxic compounds, so there is no reason to be worried.
If you want to worry, direct your attention towards Vantablack and other carbon nanotubes. It has specific target organ toxicity from single exposure and while it does not appear to be carcinogenic it needs more testing.
It's inorganic, has simple structure and contains only non-toxic compounds, so there is no reason to be worried.
If you want to worry, direct your attention towards Vantablack and other carbon nanotubes. It has specific target organ toxicity from single exposure and while it does not appear to be carcinogenic it needs more testing.