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» Personal Loan No Credit Check, Online Economics » Amber » Topics begins with S » Succinic acid


Page modified: Wednesday, July 13, 2011 19:04:12
Structural formula
General information
NameSuccinic acid
Other names Succinyls¤ure
Sum formulaC4H6O4
CAS number110-15-6
Short descriptioncolorless crystals
Characteristics
Mol mass118,09 g/mol
State of aggregationfirmly
Density1,55 g/cm
Melting point183 "°C
Boiling point253 "°C
Steam pressure Pa (x "°C)
Solubilitynot very well in water solubly
Safety references
Gefahrensymbole
XiReizend
R and S-sentencesR: 36S: 26
MAK
As far as possible and common, SI-UNITs are used. If not differently notes, the indicated data apply with standard conditions.

Succinic acid, also or , E 363, is a colorless, crystalline carbonic acid. Succinate one calls the salts and esters of the succinic acid. The term "Succinat" is derived from latin word succinum for amber.

Structural formula HOOC-CH2-CH2-COOH

Use

Succinic acid is used for the production of coloring materials, pharmaceutical preparations as well as polyester and alkyd resins. As food additive it carries the designation E 363 (for example common salt replacement in taste amplifier).

In the CIT advice cycle with the dismantling of glucose the salt seems to the succinic acid as intermediate stage with the regeneration of the acceptor

Historical

She was discovered 1546 by Georgius Agricola by heating up amber.

  • The salt-like Succinate contains the Succinat ion in its crystal lattices as negatively charged anion. The general formula of a Alkalisuccinats reads MeOOC-CH2-CH2-COOMe. ME particularly stands for sodium and potassium ions. Alkalisuccinate separate easily in water. The Erdalkalisuccinate is only with difficulty, the remaining Succinate not at all water soluble. Thus one finds Calciumsuccinat in unreifen fruits or algae.
  • The ester-like Succinate can be described by the half structural formula R-O-CO-CH2-CH2-CO-O-R. One as solvent and softener for plastics use some Succinate veresterte with Polyalkoholen and waxes.

Physiological meaning

The Succinat ion is a metabolic intermediate product of the Citratcyclus.


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