1540°C

熔点:1540°C沸点:°Cat760mmHg折射率:INDEX OF REFRACTION: 1.616-1.640 (ALPHA), 1.628-1.650 (BETA), 1.631-1.653 (GAMMA)闪光点:°C蒸气压力:0 mm Hg (approx) (NIOSH,