Arsenic, Elemental

CAS RN:7440-38-2

Color / Form

It exists in three allotropic forms, the yellow (alpha), black (beta) and grey (gamma) forms
Silver-gray or tin-white, brittle ... solid.
Allotropic forms: alpha-form, metallic, steel-grey, shiny, brittle, rhombohedral crystal structure; beta-form, dark gray, amorphous solid
Yellow, and gray or metallic
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