pKa
|
6.0
|
外观
|
colorless solid hygroscopic
|
沸点
|
decomposes (anhydrous) 132 °C (tetrahydrate)
|
密度
|
2.504 g/cm3 (anhydrous) 1.896 g/cm3 (tetrahydrate)
|
闪点
|
Non-flammable
|
熔点
|
561 °C (anhydrous) 42.7 °C (tetrahydrate)
|
溶解度
|
anhydrous: 121.2 g/100 mL (20 °C) 271.0 g/100 mL (40 °C) tetrahydrate: 195 g/100 mL (0 °C) 129 g/100 mL (20 °C) 363 g/100 mL (100 °C) in water
|
溶解度
|
dissolves in alcohol and acetone soluble in ammonia almost insoluble in nitric acid
|
欧盟危险品索引
|
Not listed
|
半数致死量
|
302 mg/kg (rat, oral)
|
NFPA704
|
|
RTECS编号
|
EW2985000
|
联合国危险货物编号
|
1454
|