Polyvinylpolypyrrolidone/ PVPP/ Crospovidone
Polyvinylpolypyrrolidone/ PVPP/ Crospovidone
USP/EP Name: Crospovidone/PVPP
Chemical Name: Crosslinked Polyvinlypyrrolidone; Polyvinylpolypyrrolidone; PVPP
CTFA Name: Insoluble PVP
CAS NO.: 25249-54-1; 9003-39-8
Molecular Formula: (C6H9NO)n
Physical properties:
White or milky powder, free flowing powder with odorless or faint characteristic smell. It's insoluble in water, acid, alkali and other common organic reagents; it can swell in water easily and can complex with polyphenol, carboxylic acids and other low molecular weight compounds.
Specification:
| PVPP/Crospovidone (USP) | Specification |
| Moisture % | ≤5.0 |
| Soluble components % | ≤1.0 |
| Monomers ppm | ≤10 |
| PH of 1% aqueous solution | 5-8 |
| Heavy metalsppm | ≤10 |
| Nitrogen % | 11.0-12.8 |
| Sulfate ash % | ≤0.1 |
| Peroxide( as H2O2) ppm | ≤400 |
Applicantion:
Pharmaceutical Grade:
Used as disintergrant for table pill, particle-like granule and capsule drug in Pharmaceutical industry.
2. Food Grade:
Used as stabilizer for beer, wine, vingar, juice and beverage to leave no residue, prolong their storage life and improve the taste.
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