Alias: Polyvinylpyrrolidone crosslinked, PVPP CAS number: 25249-54-1 Properties: White or slightly yellow powder with easy flow and hygroscopic properties. Molecular formula (C6H9NO)n Introduction to cross-linked POvidone PVPP Pvp-p, which is a polymer of the soluble compound PVP (polyvinylpyrrolidone) with insoluble versions of water and beer, PVPP is an amide polymer that binds to polyphenol compounds with a higher affinity than the proteins present in beer, which gives PVPP excellent properties as a chemical stabilizer for beer. If finely granular, high surface area PVPP is dispersed in beer, a large proportion of the dissolved polyphenols in beer will bind to the PVPP particles and subsequently be filtered out. Brewers want to remove these polyphenols because they react with beer proteins over time to form insoluble complexes that make beer cloudy. This type of stabilizer is called an adsorbent. PVPP can be used in two different ways to stabilize beer purity. The…

PVPP is a purified vinyl pyrrolidone in the form of a cross-linked homopolymer. Crosslinked polyvinylpyrrolidone (PVP-P) can form complexes with phenols and alkaloids to remove them from plant samples, thus preventing the modification and interference of proteins and allowing for more accurate determination of protein content. It has also been reported that crosslinked polyethylpyrrolidone (PVP-P) can improve the activity of the enzyme. Pharmaceutical grade PVPP Product name: Crosslinked POvidone Pharmacopoeia name: Crosslinked POvidone Chemical name: Crosslinked polyvinylpyrrolidone,PVPP INCI/CTFA:Insoluble PVP CAS number :25249-54-1 Chemical structure formula: Product features: white or yellowish powder, no special odor, insoluble in water, acid, alkali and other common organic solvents. However, it has a strong expansion capacity in water and does not produce gel accumulations, and can be complexed with peptides, hydroxyl acids and other low molecular quantization and substances. Crosslinked POvidone is the disintegrating agent of choice for high-grade tablet drugs, especially suitable for instant,…

English name: Polyvinylpyrrolidonecross – linkedEnglish equivalent :PVP; PVPP; POP; PVPK30; POLYVINYLPYRROLIDONEK90; POLYVINYLPOLYPYRROLIDONE; Polyplasdone; K-30; PLASDONE; POLYVIDONE Chinese name: cross-linked polyvinylpyrrolidone Chemicalbook Chinese synonyms: pyrrolidone; Crosslinked POvidone; Polyvinylpyrrolidone; Crosslinked polyvinylpyrrolidone; Polyvinylpyrrolidone crosslinking; Insoluble polyvinylpyrrolidone; Crosslinked polyvinylpyrrolidone; , polyvinylpyrrolidone; Polyvinylpyrrolidone, crosslinked; Crosslinked POvidone (Model XL) CBNumber:CB0744957 Molecular formula :C6H9NO Molecular weight :111.14176MOLFile:25249-54-1.mol Chemical properties of crosslinked polyvinyl pyrrolidone Melting point: ~165 °C(dec.)(lit.) Form: powder Color: Whitetooff-white Water solubility: Insolubleinwater,acidandalkaline. CAS Database: 25249-54-1   Properties, uses and production technology of crosslinked polyvinylpyrrolidone Application field Crosslinked polyethylpyrrolidone (PVPP) is a kind of crosslinked polymer which is polymerized from vinylpyrrolidone monomer under certain conditions and is insoluble in water, strong acid, strong base and common organic solvents. As an important polymer fine chemical product,PVPP has many excellent and unique properties, and has been widely used in cosmetics, food, medicine and other fields. peculiarity Crosslinked polyvinylpyrrolidone (PVPP) can be seen as a linear PVP molecular chain…

Cross-linked POvidone PVPP Product name: Crosslinked POvidone Pharmacopoeia name: Crosslinked POvidone Chemical name: Crosslinked polyvinylpyrrolidone,PVPP INCI/CTFA:InsolublePVP CAS number :9003-39-8,25249-54-1 Packing: 20KG.50KG/ cardboard drum, etc Description White or near white, with hygroscopic easy to flow powder, odorless or slightly odorless, insoluble in water, alkali, acid and common organic solvents, with strong swelling performance and complex ability with many kinds of substances. Therefore, it is considered to be the preferred disintegrating agent for high-grade tablet drugs, especially suitable for the formulation of instant, chewable tablets. It has been included in the US Pharmacopeia Version 28 and the European Pharmacopeia version 5.0. In addition, food grade products are also widely used in the beer and beverage industry. As we all know, crosslinked POvidone is one of the three super disintegrators, however, it can not only be widely used as medicinal excipients in pharmaceutical preparations, but also as a food additive used in the…

Cross-linked povidone (Copovidone) is a water-insoluble synthetic cross-linked N-vinyl-2-pyrrolidone homopolymer. It is a water-insoluble tablet disintegrator or dissolution agent, and the concentration of 2% to 5% is used in direct tablet pressing and dry or wet pellet pressing process. Crosslinked POvidone rapidly exhibits high capillary activity and excellent hydration ability, with almost no tendency to gel. The results showed that the size of crosslinked POvidone particles strongly affected the disintegrability of Rezhitong tablets. The crosslinked POvidone with larger particles can disintegrate faster than the one with smaller particles. Crosslinked POvidone is also used as a solubility accelerator. Cross-linked POvidone can increase the solubility of insoluble drugs by co-evaporation technique. First, the drug is adsorbed on the crosslinked POvidone with an appropriate solvent, and then the solvent is evaporated. This technique allows for a faster dissolution rate. Table 1: Density of commercial grade crosslinked POvidone Table 2: Specific surface area of…

In addition to containing amino acids, trace elements, protein, pectin and other rich nutrients. It also contains tea polyphenols, alkaloids, brass and other multi-functional components, which not only has the effect of quenching thirst, but also has a variety of health functions such as cancer prevention and anti-aging. Although tea polyphenols have the functions of preventing cancer and delaying aging, if the content is too high in tea drinks, it will be complexed with proteins and other proteins for a period of time, so removing part of tea polyphenols can avoid or delay the precipitation or turbidity of tea drinks, and thus improve the quality of tea drinks. China is a big tea producing country, and vigorously developing the tea beverage industry is of great significance to the development of our national economy. Storage period is a key technical problem to be solved in the development of tea beverage. It…

Wine is a kind of unstable colloidal solution, how to prolong the stability period of wine, so that the wine does not produce oxidation, turbidity and precipitation phenomenon, has been the concern of wine producers. Recently, foreign wine and beer brewing has used PVPP to improve the stability of wine and improve the flavor of wine. PVPP is a fine white powder that can be used as a clarifying agent for wine. It is a very safe food additive after being added and filtered to remove residues. This food additive has strong adsorption, which can be seen from the molecular structure of PVPP. There are several ways in which PVPP can be used in wine. 1.PVPP cardboard filter 2. Single-use PVPP processing 3.PVPP can be recycled We found the effect of PVPP treatment in wine production by comparing with different clarifying agents 1. It can significantly improve the color of…

Pharmacopoeia names: Cross-linked POvidone, Crospovidonum (USP), Crospovidone(EP) Chemical name: crosslinked polyvinyl pyrrolidone Appearance and properties: white or milky white with hygroscopic free flow powder, tasteless or slightly characteristic odor, insoluble in water, alkali, acid and general organic solvents, water absorption is easy to expand rapidly, but does not form a gel; Good fluidity and plasticity, high compressibility. Main applications and functions: Pharmaceutical field: It can be used for drug disintegrators and fillers, drug sustained-release carriers and hemodialysis membranes. Brewing and beverage industry: It can be used as a stabilizer and adsorbent for beer, juice, beverages, wine and other beverages, extending its storage time, improving the taste but not affecting the flavor of the beverage. Daily chemical field: can be used as high-grade cosmetic moisturizing agent, has a therapeutic effect on skin inflammation, acne, erythema, used in toothpaste can reduce inflammation, analgesia for gingival also has a therapeutic effect. Packing and…

PVPK30 is a high polymer with K value range of 28-32 in the polyethylpyrrolidone (POvidone for short) series, with good water solubility and soluble in various organic solvents. PVPP is a cross-linked polyvinylpyrrolidone, a cross-linked polymer of polyvinylpyrrolidone that is almost insoluble in any solvent. PVP40, short for PVPK40, is a polymeric polymer with K value of about 40 in the polyethylene pyrrolidone (POvidone) series, and the properties of PVPK30 are basically the same. But the K value increases, the molecular weight of the polymer also increases, and the viscosity of the solution increases correspondingly. Polyvinylpyrrolidone is PVP, cross-linked polyvinylpyrrolidone is PVPP, as the name suggests, PVPP is the cross-linked state of PVP, with disintegration, PVP only strong hygroscopicity. What is the difference between pvp40 and pvpk30 and pvpp 1. Different meanings pvp40: It is a high polymer with K value of about 40 in the polyethylene pyrrolidone series. pvp-k30…

CTFA name :Crosslinked Polyvinylpyrrolidone, white or nearly white in nature, with moisture absorption and easy to flow powder, odorless or slightly odorless, insoluble in water, alkali, acid and common organic solvents, with strong expansion performance and complex ability with many kinds of substances. It can be used as a stabilizer for beer, liquor, grape juice, fruit juice and other beverages to extend their storage life. In the pharmaceutical industry, it is mainly used as a disintegrating agent for tablets, and can also be used as a disintegrating agent and filler for pills, granules and hard capsules. Chinese name: crosslinked polyvinylpyrrolidone Foreign name: Crosslinked Polyvinylpyrrolidone Properties: hygroscopic powder with easy flow Application: Extend its storage life Material property White or nearly white, with hygroscopic easy to flow powder, odorless or slightly odorless, insoluble in water, alkali, acid and common organic solvents, with strong swelling performance and complex ability with many kinds…