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Physical Properties of Cinnamic Acid
(a) Cinnamic Acid is a white crystalline solid and its melting point 133°C.
(b) Cinnamic Acid is sparingly soluble in water.
(c) Cinnamic Acid shows geometrical isomerism.
Cinnamic acid (stable form) takes place in nature both free and as esters in balsams and resins.
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