product name:polyvinylpyrrolidone
cas no.: 25249-54-1
mf: (c6h9no)n
purity: 99.0%min
appearance: white powder
type: syntheses material intermediates
item |
moisture% |
water-soluble substances % |
vinylpyrrolidone % |
ph in 1% water |
heavy metals % |
nitrogen % |
residue on ignition% |
particle size (u m) |
|
type a |
type b |
||||||||
crospovidone |
≤5.0 |
≤1.5 |
≤0.1 |
5-8 |
≤0.001 |
11.0-12.8 |
≤0.4 |
50-250 |
≤50 |