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性 狀：
用 途：
檢驗報告：
Appearance and properties: blue black solid
Density: 1.01 g/mL at 25 C
Melting point: 1852 C (lit.)
Boiling point: 4377 C (lit.)
Storage conditions: low temperature drying in the warehouse, separate from oxidant
用 途：
For refractory materials, stainless steel precision casting, etc..
檢驗報告：
