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Tag Archives: pigment

Arsenic crayons

What was your favorite coloring method as a child? Messy finger paints? Magic markers with a tendency to bleed? Or were you a neat and precise colored pencil and crayon kind of kid? What about arsenic? I bet you never thought of that one while you were coloring in landscapes with purple mountain majesty.* Arsenic sulfide (As2S3), or […]