... formula: C4H6O4Molecular weight: 118.09Physical Properties: White Crystal, melting point 185°C, boiling point 235°C, specific gravity 1.572, slightly soluble in ... . AppearanceColorless to white crystal or white erystal powderContent%≥99.5Melting Point °C183.0-187.0Appearance of water solutionColorless transparent or nearly ...