714 °C (987 K) (on rapid heating: slow heating leads to decomposition from 300 °C)

1.675 (anhydrous)
1.569 (hexahydrate)

anhydrous
54.3 g/100 ml (20 °C)
72.6 g/100 mL (100 °C)

---

hexahydrate
157 g/100 mL (20 °C) in water

7.4 g/100 mL (30 °C) in ethanol

white or colourless crystalline solid

Non-flammable

1412 °C (1685 K)

2.32 g/cm³ (anhydrous)
1.569 g/cm³ (hexahydrate)

S26,S37,S39

Irritant

Not listed

OM2975000

2800 mg/kg^-1 (oral, rat)

R36,R37,R38