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1.white powder2.Pharm grade(USP32,EP,BP,JP); Cosmetic grade; Tech grade3.Manufacture strictly acccording to GMP requirements
4.PVP-related problems solver
5.Technology data:
| Item | Specification | result |
Appearance | white or yellowish-white, hygroscopic powder or flakes | conform |
| Identification | A.B.C.(USP) First –A.E. Second-B.C.D.E(EP) | conform |
| PH | 4.0-7.0 | 3.5 |
| K-value | 81.0-97.2 | 89 |
| Lead | 10ppm max | conform |
| Aldehydes | 5.00*102 ppm max | 86 |
| Peroxides | 400ppm max | conform |
| Formic acid | 0.5% max | 0.2% |
| Hydrazine | 1ppm max | <1ppm |
| Impurity A | 10ppm max | <10 ppm |
| Nitrogen | 11.5-12.8% | 12.7 |
Pakeging: 25kgs/fibre drum
PVP K90 powder CAS NO.9003-39-8