And they pointed out that parents should "consider options other than rice cereal for a child's first solid food." Arsenic has two chemical forms, inorganic and organic (the latter of which can be ...

Yellow arsenic has a specific gravity of 1.97 while grey arsenic has a specific gravity of 5.73. Grey arsenic is the usual stable form with a melting point of 817 degree Celsius. It is a very brittle ...