Description
Polyvinylpyrrolidone is abbreviated as PVP, and is the polymer of vinylpyrrolidone. According to the different degree of polymerization, it is further classified into soluble PVP and insoluble PVPP (polyvinyl polypyrrolidone). Molecular weight of the soluble PVP is 8,000 to 10,000.The soluble PVP can be used as a precipitating agent which can be settle down through its action with polyphenols. Using this method, it is easily to have residual PVP in the alcohol. Due to the savings effect of PVP inside the human body, the World Health Organization doesn't recommend to apply this substance. In recent years, the use of soluble PVP has been rare. Insoluble PVPP system had began to be used in the beer industry since the early 1960s. It has a relative molecule weight greater than the relative mass greater than 700,000. It is a insoluble polymer derived from the further cross-linking and polymerization of PVP and can be used as an adsorbent of polyphenols with a good efficacy.
Packing and storage:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
| Product Name | Polyvinylpyrrolidone |
| CAS | 9003-39-8 |
| Purity | 99% |
Technical Grade:| Item | K15 | K17 | K25 | K30 | K90 |
| K value | 13-17 | 15-19 | 23-27 | 27-33 | 88-98 |
| N-Vinylpyrrolidone | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Moisture % max | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| PH value (5% in water) | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 4.0-7.0 |
| Residue on ignition % max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Nitrogen content % | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 |
Pharmaceutical Grade (USP/EP/BP/JP):| Item | K15 | K17 | K25 | K30 | K90 |
| K value | 13-17 | 15-19 | 23-27 | 27-33 | 88-98 |
| (CP/USP) | 0.1% max | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| (USP/EP/BP) ppm max | 10 | 10 | 10 | 10 | 10 |
| Moisture % | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| Solid content % min. | 95 | 95 | 95 | 95 | 95 |
| PH value (5% in water) | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 3.0-5.0 | 4.0-7.0 |
| Residue on ignition % | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Nitrogen content % | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 | 11.5-12.8 |
| 2-Pyrroli done (impurity B)% max | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 |
| Acetalde hyde (as acetalde hyde) ppm max | 500 | 500 | 500 | 500 | 500 |
| Heavy metal (as Pb) ppm max | 10 | 10 | 10 | 10 | 10 |
| Hydrazine ppm max | 1 | 1 | 1 | 1 | 1 |
| Peroxide (As H2 O2) ppm max | 400 | 400 | 400 | 400 | 400 |
Related products:
Hebei Kunsui Technology Co., Ltd. specializes in exporting high quality Pharmaceutical raw materials, plant extract, pesticide raw materials and Chemical raw materials. Our products are produced on the basis of best technical team, advanced equipment, high qualified management which meet the requirements of security and environmental protection. We earned customer trust and created a good reputation during these years. We will provide the most comprehensive products and service to you! looking forward to your cooperation.
Packing and Storage: Packed in double plastic bags inside, outside with 25kg Fiber Drum.
Drum Size: 40cm*40cm*50mm, 25KG/drum Nt.;27.5Kg/drum.Gt. Store in a well-closed container away from moisture.
Shelf Life: 2 years if sealed and store away from direct sun light.
Storage: Stored in a clean, cool, dry area; keep away from moisture and strong, direct light/heat.
Delivery time: Around 3-5 workdays after your payment.
Q1: How to confirm the Product Quality before placing orders?
A: By sending you our available samples. Or if you have special requirement on the goods, we can prepare samples according to your requirement and send to you for your confirmation.
Q2: Can you supply free samples?
A: Yes, we can provide some free sample, but the shipping cost should be on the customers' account. You can either pay us the shipping cost or arrange a courier to collect the samples.
Q3: What's the MOQ?
A: The minimum order quantity for most of our products is 1kg.
Q4: Is there any discount?
A: Yes, for larger quantity, we always support with better price.
Q5: How to place order and make payment?
A: You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation., then you can make payment accordingly.
Q6: How do you treat quality complaint?
A: All our products are strictly tested by our QC, and confirmed by QA; unqualified material will not be released to customer. In case any quality problem is confirmed to be caused by us, we will replace the goods or refund your payment immediately.
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