型号 | 聚维酮K15 | 聚维酮 K17 | 聚维酮 K25 | 聚维酮 K30 | 聚维酮 K60 | 聚维酮 K90 | |
外观 | 白色至乳白色粉末 | ||||||
溶解性 | 易溶于谁、酒精(96%)及甲醇 | ||||||
pH值(5% 水溶液) | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 4.0-7.0 | 4.0-7.0 | |
粘度(以K值表示 ) | 12.75-17.25 | 15.3-18.36 | 22.5-27.0 | 27.0-32.4 | 54.0-64.8 | 81.0-97.2 | |
醛(以乙醛计),ppm | ≤500 | ≤500 | ≤500 | ≤500 | ≤500 | ≤500 | |
过氧化物(以 H2O2计),ppm | ≤400 | ≤400 | ≤400 | ≤400 | ≤400 | ≤400 | |
甲酸,% | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 | |
肼,ppm | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | |
N-乙烯吡络烷酮(杂质A),ppm | USP26 | ≤1000 | ≤1000 | ≤1000 | ≤1000 | ≤1000 | ≤1000 |
Current USP/EP/BP | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | |
2-吡络烷酮(杂质B),% | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 | |
重金属(以铅计),ppm | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | ≤10 | |
水分,% | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 | ≤5.0 | |
硫酸盐灰份,% | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | |
氮含量,% | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 |