1.Physical property
Appearance properties Black powdery or granular porous crystal. The boiling point is 4827℃, the sublimation is 3652℃, the relative density is about 1.8-2.1, and the relative density is about 0.08-0.45.
Melting point 3550 °C(lit.)
Boiling point 500-600 °C(lit.)
Density ~ 1.7g /mL at 25 °C(lit.)
Vapor pressure <0.1 mm Hg (20 °C)
Flash point >230 °F
Storage conditions Flammables area
The solubility is insoluble.
Form rod
Specific gravity 1.8 ~ 2.1 (amorphous)
Color Black
PH 6-9
Odor (Odor)at 100.00? %. odorless
resistivity 1375 μΩ-cm, 20°C (graphite)
Insoluble in water.
Merck1807
BRN4360473
Stable and stable. Incompatible with strong oxidants. Flammable. Highly flammable in powder form.
2.Use
Use 1
Decolorization and filtration, decolorization of colored liquid, absorption of various gases and vapors. For chromatographic analysis. Reducing agent for measuring methanol, tin and silicon. The granular matter can be used as a catalyst carrier.
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