Product Description
|
Molecular Formula |
C4H6O5 |
|
Molecular Weight |
134.09 |
|
CAS |
6915-15-7 |
|
EINECS |
230-022-8 |
|
HS Code |
2918190090 |
|
Purity |
99% |
|
Appearance |
White crystal powder, odorless |
|
Packaging |
25 kg/bag |
COA
|
ITEM |
CONFORMS |
RESULT |
|
ASSAY (%) |
99.0-100.5 |
99.1 |
|
SPECIFIC ROTATION |
-0.1-- +0.1 |
0 |
|
MELTING RANGE(C) |
127-132 |
129 |
|
WATER INSOLUBLES (%) |
MAX 0.1 |
0.006 |
|
SULPHATED ASH (%) |
MAX 0.1 |
0.06 |
|
FUMARIC ACID (%) |
MAX 1.0 |
0.75 |
|
MALEIC ACID (%) |
MAX 0.05 |
0.01 |
|
HEAVY METALS PPM |
MAX10 ! |
<10 |
|
ARSENIC PPM |
MAX2 |
<2 |
|
LEAD PPM |
MAX 2 |
<2 |
|
MERCURY PPM |
MAX1 |
<1 |
|
IDENTIFICATION TEST |
IR ABSORPTION |
COMFORMED |
Uses and Applications
Malic acid is used in pharmaceutical formulations as a general-purpose acidulant. It possesses a slight apple flavor and is used as a flavoring agent to mask bitter tastes and provide tartness. Malic acid is also used as an alternative to citric acid in effervescent powders, mouthwashes, and tooth-cleaning tablets.
In addition, malic acid has chelating and antioxidant properties. It may be used with butylated hydroxytoluene as a synergist in order to retard oxidation in vegetable oils. In food products it may be used in concentrations up to 420 ppm.
Therapeutically, malic acid has been used topically in combination with benzoic acid and salicylic acid to treat burns, ulcers, and wounds. It has also been used orally and parenterally, either intravenously or intramuscularly, in the treatment of liver disorders, and as a sialagogue.
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