1. Gallic Acid 2. 99%,99.5% HPLC,White or pale yellow fine powder 3. for pharmaceutical, ... with ferricchloride and then appear blue-black colour. ItemsUnitResultsAssay%over 99.0Moisture%≤10Melting Point°C250Residue on ignition%≤0.1Sulfate (SO42- )%≤0 ... inside;2.All the deliveries will be arranged within 3~5 working days; in case of force majeure, we will keep ...