|
dl-Malic Acid
|
| Chemical
Synonyms: Hydrozysuccinic
Acid; Apple Acid; COOHCH2CH(OH)COOH |
Description:
Colorless
crystals; sour taste; very soluble in water and alcohol, slightly
soluble in ether, combustible. |
|
Derivative:
Occurs
naturally in unripe apples and other fruits. Made synthetically by
catalytic oxidation of benzene to maleic acid, which is converted to
malic acid by heatin with steam under pressure. |
| mp:
128°C |
bp:
150°C (decomposes) |
| Uses:
Manufacture of various esters and
salts, wine manufacture, chelating agent, food acidulant, flavoring.
dl-Malic acid is a harmless substance and is used among many countries
in the world in the food field or the industrial field as
"generally recognized as safe" substance accepted by the FDA. |
| Specification |
| PROPERTIES |
RESULTS |
| Assay: |
99.0-100.5% |
| Heavy Metals: |
10ppm max. |
| Residue on Ignition: |
0.1%max. |
| Fumaric Acid: |
1.0%max. |
| Maleic Acid: |
0.05%max. |
| As: |
3ppm
max. |
| Water Insolubles: |
0.1%max. |
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