C4H6O4 --- 118.09
Butanedioic acid [110-15-6].
Succinic Acid contains not less than 99.0 percent and not more than 100.5 percent of C4H6O4.
Packaging and storage: Preserve in a well-closed container. No storage requirements specified.
Identification: Place a drop of a saturated solution of the sample in a micro test-tube and add a drop of ammonium chloride solution (0.5 in 100) and several mg of zinc powder. Cover the mouth of the tube with a disk of filter paper moistened with a solution in hexane containing pdimethylaminobenzaldehyde (5 in 100) and trichloroacetic acid (20 in 100). Heat with a small flame for about 1 minute: a pink to red-violet stain appears on the paper.
Melting range: between 185.0 and 190.0.
Residue on ignition: not more than 0.025%.
Heavy metals: 0.002%.
Assay: Dissolve about 250 mg, accurately weighed, in 25 mL of carbon dioxide-free water. Add 2 drops of phenolphthalein and titrate with 0.1 N sodium hydroxide to the production of a permanent pink color. Each mL of 0.1 N sodium hydroxide is equivalent to 5.905 mg of C4H6O4.
Butanedioic Acid
HOOCCH2CH2COOH --- Formula Weight 118.09
CAS Number 110-15-6
REQUIREMENTS
Assay: 99.0% HOOCCH2CH2COOH
Melting point: 185C-191C
MAXIMUM ALLOWABLE
Insoluble matter: 0.01%
Residue after ignition: 0.02%
Chloride (Cl): 0.001%
Phosphate (PO4): 0.001%
Sulfate (SO4): 0.003%
Nitrogen compounds (as N): 0.001%
Heavy metals (as Pb): 5 ppm
Iron (Fe): 5 ppm.
Butanedioic Acid
HOOCCH2CH2COOH
C4H6O4 --- Formula weight 118.09
INS: 363 CAS: 110-15-6
DESCRIPTION
Succinic Acid occurs as colorless or white crystals. One-gram dissolves in 13 mL of water at 25C, in 1 mL of boiling water, in 18.5 mL of alcohol, and in 20 mL of glycerin.
Function: Buffer; neutralizing agent.
REQUIREMENTS
Identification: Place a drop of a saturated solution of sample into a micro test tube and add a drop of a 0.5% solution of ammonium chloride and several milligrams of zinc powder. Cover the mouth of the tube with a disk of filter paper moistened with a solution of 5% p-dimethylaminobenzaldehyde and 20% trichloroacetic acid in hexane. Heat with a small flame for about 1 min. A pink to red-violet stain appears on the paper.
Assay: Not less than 99.0% and not more than 100.5% of C4H6O4.
Lead: Not more than 2 mg/kg.
Melting Range: Between 185.0° and 190.0°.
Residue on Ignition: Not more than 0.025%.
