指标名称 Technical Index | 指标 |
外观 Appearance | 粉末状白色结晶,允许呈浅灰色 Powdered white crystal, light gray color allowed |
熔点,℃ Melting point | 141.0±1.0 |
氮的质量百分数不小于 Nitrogen mass percent | ≧17.50 |
丙酮不溶物的质量百分数不大于 Acetone insoluble mass percent |
≦0.10 |
丙酮不溶颗粒(筛孔0.425mm),个 Acetone insoluble particle (mesh size 0.425mm) |
0 |
酸度(以硝酸计)或碱度(以碳酸钠计)质量百分数不大于 Acidity (Nitric acid) and Alkalinity (Carbonic acid) mass percent |
≦0.01 |
水分及挥发分质量百分数不大于 Moisture and Volatile matter mass percent |
≦0.10 |
真空安定性(120℃,20h),放出气体量(mL) 不大于 Vacuum stability (120℃,20h)Gas release (ml) |
≦5 |