Succinic
Acid (Butanedioic Acid) is a dicarboxylic
acid of four carbon atoms. It occurs naturally in plant
and animal tissues. It plays a significant role
in intermediary metabolism (Krebs cycle) in the body. Krebs cycle (also called citric acid cycle; tricarboxylic acid cycle) is a
sequence process of enzymatic reaction which a two-carbon acetyl unit is
oxidized to carbon dioxide and water to provide energy in the form of
high-energy phosphate bonds. Succinic
acid is a colourless
crystalline solid with a melting point of 185 -187
C; soluble in water; slightly dissolved in ethanol,
ether, acetone and glycerine; not dissolved in benzene,
carbon sulfide, carbon tetrachloride and oil ether.
The common method of synthesis of succinic acid is the
catalytic hydrogenation of maleic acid or its anhydride.
Carboxylic acid can
yield
acyl halides, anhydrides, esters,
amides, and nitriles for the application of drug,
agriculture, and food products, and other industrial
uses.
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