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DL-Malic acid
Synonyms: Hydrozybutanedioic acid, DL-Malic acid, Malic Acid, DL-Apple acid
CAS NO.: 617-48-1
Molecular Formula: C4H6O5
Molecular Weight: 134.09
Usage:
DL-Malic acid can be used as an acidulant in cool drinks (including lactobacillus drinks, milk drinks, carbonated drinks, cola), frozen foods (including sherbet and ice cream), processed foods (including wine and mayonnaise). It is used as color-keeper and antiseptic of juice. It is also used as emulsion stabilizer of egg yolk. DL-Malic acid also can be used as pharmaceutical intermediate, cosmetic, rinse, metal cleaner, buffering agent, retarder in textile industry, fluorescent whitening agent of polyester fibre.
Packing and Storage:
25kg net weight in cardboard drum or according to customer requirements. Kept air tightly in a light-proof, dry and cool place.
COA of DL-Malic Acid：
|
Item |
Specifications |
Results |
|
Appearance |
White crystal powders |
White crystal powders |
|
Assay |
≥99.0 |
99.4 |
|
Specific rotation |
+1.6~+2.6 |
+1.6 |
|
Sulfate |
≤0.03 |
<0.02 |
|
Chloride |
≤0.004 |
<0.004 |
|
Arsenic |
≤2.0 |
<2.0 |
|
Heavmetals |
≤20 |
<10 |
|
Fumaric acid |
≤1.0 |
0.1 |
|
Maleic acid |
≤0.05 |
<0.01 |
|
Residue on ignition |
≤0.10 |
0.05 |
|
State of solution |
Pass |
Pass |
|
Readily oxidilable substances |
Qulified |
Qulified |
|
Optical purity |
≥98.0 |
99.8 |
|
Conclusion |
Qulified |
|