189 - 191°C (101.5°C, 214.7°F, dihydrate)

1.90 g cm^-3 (anhydrous)
1.653g cm^-3 (dihydrate)

166°C (330.8°F)

14.3 g/100ml (25 °C) in water

23.7 g/100ml (15 °C) in ethanol

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1.4 g/100ml (15 °C) in diethyl ether

White crystals

1.25, 4.14

3261

RO2450000

Toxic