Malonic Acid (141-82-2)

Basic Data:

Malonic acid, 9CI
Synonym(s): Propanedioic acid, 8CI. Methanedicarboxylic acid
Chapman Hall Number: DCG89-D
CAS Registry Number: 141-82-2
Related CAS Registry Numbers(s): 141-95-7 156-80-9 813-56-9 6148-64-7 18424-76-5 36148-03-5 38330-80-2
Type of Compound Code(s): PA4700 VA0300 PS7700 PA4850 HOOCCH2COOH

Molecular Formula: C3H4O4
Molecular Weight: 104.062
Accurate Mass: 104.01096
Percentage Composition: C 34.63%; H 3.87%; O 61.50%
Biological Source: Widespread in plants in small amts.
Use/Importance: Used as aq. soln. for extraction-separation of U; as an eluant in ion-exchange sepn. of Sn(IV); alkalimetric standard; complexing agent. Monomer for polyamides and polyesters.
Physical Description: Cryst.
Melting Point: Mp 135.6
Solubility: Sol. H2O, EtOH, Et2O; mod. sol. Py
Dissociation Constant: pKa1 2.77; pKa2 5.7 (25,H2O)
Other Data: Sublimes in vacuo
Hazard Toxicity: Skin and eye irritant. LD50 (rat, orl) 1310 mg/kg
RTECS Accession Number: OO0175000

Specifications: