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It adheres on the tenet “Honest, industrious, enterprising, innovative” to acquire new solutions continuously. It regards prospects, success as its personal success. Let us build prosperous future hand in hand for 1197-18-8, China Hydroxypinacolone Retinoate, Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. If you are interested in any of our goods or would like to discuss a custom order, make sure you feel free to contact me. We are looking forward to forming successful business relationship with new clients around the world.
Pharmaceutical Excipient Crospovidone is a crosslinked PVP,insoluble PVP,it is hygroscopic,insoluble in water and all other common solvents,but it swells rapidly in aqueous solutbition without any gel froms.Its; classified as Crospovidone Type A and Type B according to the different particle size.
Key Technical Parameters:
| Product | Crospovidone Type A | Crospovidone Type B |
| Appearance | White or yellowish-white powder or flakes | |
| Identifications | A.Infrared Absorption | |
| B.No blue color develops. | ||
| C.A Suspension is formed and no clear solution is obtained within 15 min. | ||
| D.Majority of particles are in the range 50 ~300 μm is type A,majority of particles are in the range 5~50 μm | ||
| Solubility | Practically insoluble in water,in alcohol and in methylene chloride | |
| Water- soluble substances | 1.0% max | 1.0% max |
| pH((1% in water) | 5.0 –8.0 | 5.0 –8.0 |
| Loss on Drying | 5.0% max. | 5.0% max. |
| Sulphated Ash | 0.1% max. | 0.1% max. |
| Nitrogen content | 11.0 -12.8 % | 11.0 -12.8 % |
| Impurity A | 10 ppm max. | 10 ppm max. |
| Peroxide(As H2O2) | 400 ppm max. | 1000 ppm max. |
| Heavy Metals | 10 ppm max. | 10 ppm max. |
Applications:
Crospovidone are widely used as 1)Disintergrating agent,2)Stabilizer for suspension,3)Moisture Absorbent, 4)Complextant of Polyphenols and Tannin for the extract formulations.
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Food Grade PVPP is a crosslinked PVP,insoluble,it is hygroscopic,insoluble in water and all other common solvents,but it swells rapidly in aqueous solutbition without any gel froms.
Key Technical Parameters:
| Product | PVPP (One Way) | PVPP(Regenerate) |
| Appearance | White to off-white,hygroscopic,free-flowing powder | |
| Solubility | Insoluble in water and other common solvents. | |
| Odour of the suspension | Faint,Typical | |
| Nitrogen | 11.0-12.8% | 11.0-12.8% |
| Heavy metals(As Pb) | 10ppm max. | 10ppm max. |
| Lead | 2 ppm max. | 2 ppm max. |
| Arsenic | 2 ppm max. | 2 ppm max. |
| pH(1% in Water Suspension) | 5.0-8.0 | 5.0-8.0 |
| Sulphated Ash | 0.4% max. | 0.4% max. |
| Water soluble substances | 0.5% max. | 0.5% max. |
| Solubility in Acetic Acid/Ethnol | 1.0% max. | 1.0% max. |
| Peroxides | 400 ppm max. | 400 ppm max. |
| N,N-Divinylimidazolidione | 2ppm max. | 2ppm max. |
| N-Vinylpyrrolidone | 10 ppm max. | 10 ppm max. |
| Water | 5.0% max. | 5.0% max. |
| Paticle Size | / | / |
Applications:
Thanks to it’s insoluble properties in water and other common solvents,PVPP is widely acted as stabilizers & clarifier for Beer/Wine and other beverages products,it can romove polyphenols and tannins substances during the Beer/Wine/Beverage processing.
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