| CAS No.: | 9003-39-8 |
|---|---|
| Formula: | CH4 |
| EINECS: | 1312995-182-4 |
| Type: | Pharmaceutical Intermediates |
| Appearance: | Powder |
| Quality: | Technical |
| Customization: |
|---|
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| Product name | Polyvinylpyrrolidone |
| MOQ | 1KG |
| CAS NO | 9003-39-8 |
| Purity | NLT 98% |
| Appearance | White powder |
| Melting point | >300ºC |
| Boiling point | 90-93ºC |
| Density | 1.69g/cm3 |
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 Method:
For small samples quantity <1 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags.
For medium quanity 1-25 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags, then packed in cartons or small drums for shipping.
For larger quanity >25 kilograms, inside we use double resealable zip bags and outside with aluminium Foil Bags OR bigger size double seal PET bags for 25kgs in bulk then packed in drums for shipping.
Please contact us for more details if you have any question!
Q1: Can I get a sample?
A: We do provide our clients small sample (Sample size from 1-50grams). Free samples can be provided for some products due to the material cost.
Q2: How to start orders or make payments?
A: You can send us your Purchase Order (PO), or just send a simple confirmation by email or by Trade Manager.
Q3: What's your Minimum Ordering Quantity (MOQ)?
A: Products' MOQ depend on their value, please kindly confirm specific items with our online sales.
Q4: Is there a discount?
A: Yes, we offer low prices for larger quantities. There will be different price range on our quotation list so please inform us with quantity you will be after.
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