产品详情
品名 | PVP K15 | PVP K17 | PVP K30 | PVP K60 | PVP K90 | ||||
外观 | 白色至乳白色粉末 | ||||||||
K值 | 13-17 | 15-19 | 27-32 | 55-65 | 81-98 | ||||
NVP残单 | (CP2005/USP26) %max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | |||
(USP31/EP6/BP2007) ppm max | 10 | 10 | 10 | 10 | 10 | ||||
水分% max | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 | ||||
固含量% min | 95 | 95 | 95 | 95 | 95 | ||||
pH值(5﹪水溶液) | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 4.0-7.0 | 4.0-7.0 | ||||
硫酸盐灰分% max | 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 | ||||
2-吡咯烷酮 (杂质 B)% max | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | ||||
醛(以乙醛计)ppm max | 500 | 500 | 500 | 500 | 500 | ||||
重金属 (以铅计)ppm max | 10 | 10 | 10 | 10 | 10 | ||||
肼 ppm max | 1 | 1 | 1 | 1 | 1 | ||||
过氧化物(以过氧化氢计)ppm max | 400 | 400 | 400 | 400 | 400 | ||||