Appearance:
colorless to white crystal or crystalline powder, odorless or has slight foreign smell, has pleasant acid smell, its solution has no optical rotation; no hygroscopicity; slightly soluble in ether.
CERTIFICATE OF ANALYSIS
Assay |
99.0%~100.5% |
Residue on ignition |
Max 0.1% |
Water insoluble matter |
Max 0.1% |
Heavy metals (as pb ) |
Max 10mg/KG |
Specific rotation |
-0.10°~+0.10°determined in a water solution containing 85mg per ml |
Fumaric acid |
Max 1.0% |
Maleic acid |
Max 0.05% |
Use:
Acidity regulators; regulator;flavors etc.
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