Liesegang rings

（重定向自Liesegang Ring）

Liesegang band experiment. Red material is gelatin with Mg sulfate (MgSO4) and a drop of red food coloring; clear material above it is concentrated ammonium hydroxide. Diffusion of NH4OH into the gelatin causes discontinuous precipitation of Mg hydroxide ( Mg(OH)2

Liesegang rings of Magnesium hydroxide in Agar gel. Made by diffusing Ammonium hydroxide into an Agar gel containing Magnesium chloride.

Liesegang rings (/ˈliːzəɡɑːŋ/) are a phenomenon seen in many, if not most, chemical systems undergoing a precipitation reaction, under certain conditions of concentration and in the absence of convection.

单词	Liesegang Ring
释义	Liesegang Ring 英语百科 Liesegang rings （重定向自Liesegang Ring） Liesegang rings (/ˈliːzəɡɑːŋ/) are a phenomenon seen in many, if not most, chemical systems undergoing a precipitation reaction, under certain conditions of concentration and in the absence of convection.
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