0.0015 g/100 mL (18 °C)
0.0016 g/100 mL (20 °C) in water

insoluble in acetone
slightly soluble in acid

Non-flammable

White crystalline solid (single crystals are transparent)

1418°C

1.4338

3.9 x 10^-11

2533°C

3.18 g/cm³

Not listed

R20,R22,R36,R37,R38

4250 mg/kg (oral, rat)

Reacts with conc. sulfuric acid to enhance hydrofluoric acid

EW1760000

S26,S36