Oh Snap Card

Oh Snap! 

This purple card shows the structure of nitrogen triiodide, a highly unstable explosive that makes a snap sound upon contact with anything, even a feather. How interesting!

Suitable for any occasion.

Greeting:  oh snap
Inside:  blank
Size:  A2, 5.5 x 4.25 in (14 x 10.8 cm)
Quantity:  1 card with envelope

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