We sell high quality silver metallic mercury 99.9% pure... Our quality mercury has an outstanding use in gold mining and also dental uses. SPECIFICATION - purity = 99.999%. - Free from heavy metals - sical State: Liquid - Appearance: silver - Odor: odorless - Not available. - Vapor Pressure: 0.002 mm Hg @ 25C - Vapor Density: 7.0 - Evaporation Rate: Not available. - Viscosity: 15.5 mP at 25 dig C - Boiling Point: 356.72 dig C - Freezing/Melting Point:-38.87 dig C - Decomposition Temperature: Not available. - Solubility: Insoluble. - Specific Gravity/Density: 13.59 (water=1) - Molecular Formula :Hg - Molecular Weight: 200.59 packed in 34.5 kg flasks.