Product overviewpovidoneProduct Name Povidone (PVP)USP/EP name povidoneINCIPVPCASNO.9003-39-8Appearance White to milky white free flowing powder, odorless or slightly characteristic odor;The main properties are non-toxic, non-irritating, hygroscopic, easily soluble in water, alcohol, amine and other organic solvents, with excellent solubility, film formation, chemical stability, physiological inertia, adhesion and complexing ability.Product standards meet USP/NF, EP, JP, BP,K series products have the application characteristics of bonding, film formation, dispersion and thickening, and have a very wide range of uses in the field of pharmaceutical preparations, and are one of the three new pharmaceutical excipients advocated internationally.Crosslinked POvidoneProduct Name: Crosslinked POvidone (PVPP)USP/EP Name :crospovidoneINCI:CrosslinkedPVPAppearance White or milky white free flowing powder, odorless or slightly characteristic odorThe main properties are easy to absorb moisture, insoluble in water, acid, alkali and general organic solvents; Water absorption is easy to expand rapidly, but does not form gel; Good fluidity and plasticity, high compressibility; Non-toxic, chemically inert.Product standards meet…

Food and beverageInsoluble polyethylene polypyrrolidone is a food-grade product produced by Quzhou Jianhuanan Hang Pharmaceutical Co., LTD., which is used as a stabilizer in the beverage industry such as beer, red wine and tea. It is crosslinked and polymerized by vinylpyrrolidone. It has a slight taste or is tasteless. Insoluble in water, acid, alkali and other solvents, easy to absorb moisture, can expand rapidly in water but no gum formation. Application: As a stabilizer, insoluble polyethylene polypyrrolidone is widely used in beer, wine, tea drinks, fruit juices and other beverage industries.Chemical name crosslinked polyvinylpyrrolidone,PVPPINCI/CTFA insoluble PVPCAS number 9003-39-8A white or off-white free-flowing granular powdersummarizeEven if the beer has been filtered, it will still produce precipitation after storage for a period of time. As a result, beer doesn’t last very long. This is caused by polyphenols in beer, polyphenols have a strong ability to cause beer to produce turbidity. PVPP can…

This product is an aqueous synthetic polymer, a linear homopolymer of n-vinylpyrrolidone, whose molecular formula is (C6H9NO)n, where n represents the average number of N-vinylpyrrolidone chains; Povidone K30, with an average molecular weight of 38000, is the most commonly used excipient. Povidone K15, K25 and K90 were followed by POvidone K15, K25 and K90 with average molecular weight of 7700, 25000 and 630000, respectively.Chemical structure and namingMolecular formula (C6H9NO)nMolecular weight: Mw=(111.1)nChemical name: Polyvidone; Polyvidonum; PolyvinylpyrrolidoneCTFA/INCI: PVPCAS Number: [9003-39-8] Product characteristicsThis product is white to milky amorphous powder, its bulk density is 0.4~0.6; Odorless or slightly odorless; Tasteless; Hygroscopicity, when the relative temperature is 75%, the saturated water absorption rate is about 40%; Soluble in water, ethanol, isopropyl alcohol, glycerol or chloroform, insoluble in acetone, ether and hydrocarbon solvents.This product can be complexed with many substances, especially compounds containing active hydrogen atoms or metal carbonyl compounds, to form solid complexes, so…

Like all homopolymer series products, because the molecular structure of PVPK30 contains hydrophilic groups and oil groups, it can interact with many solvents, so that it can be dissolved in water, and can be dissolved in a variety of alcohols, carboxylic acids, amines and halogenated organic solvents. The solubility is limited only by its own viscosity. Basic information Polyvinylpyrrolidone is a ketone organic matter, which can be used as clarifying agent. Stabilizer; Thickening agent; Tablet filler; Dispersant. Molecular weight of 360,000 polymer PVP is commonly used as beer, vinegar, wine and other clarifying agents. CAS number: 9003-39-8 Molecular formula: C6H9NO Molecular weight: 111.142 Precision mass: 111.068 PSA: 20.310 Logp: 0.690 IUPAC: 1-Ethenylpyrrolidin-2-One Heterogeneous SMILE: C=CN1CCCC1=O Attribute classification Substance category: organic matter Category: Polymer (materials) > Other polymers, apis and intermediates > Blood system drugs Physicochemical property Melting point: 165℃ Density: 1,69G/Cm3 Appearance and shape: White to yellowish white powder Povidone…

Powders and ethanol solutions of vinylpyrrolidone and vinyl acetate copolymerization in different ratios (m/n value) are available. The solution of PVP/VA series products in water varies from clear to turbid, and the degree of turbidity depends on the ratio of vinylpyrrolidone and vinyl acetate vinegar. These solutions are slightly acidic but non-electrolytic.The following is a specific introduction to its application areas:CAS number: 25086-89-9Molecular formula: C10H15NO3Molecular weight: 197.23 g/molPackaging and storagePowder: 25kg cardboard or plastic drum Liquid: 50 kg plastic drums or 800, 1,000 kg IBC drums Store dry at room temperaturecharacterWhite powder or transparent, translucent solution, odorless or slightly characteristic odor, soluble in water, ethanol and other organic solvents; It has good adhesion, hygroscopicity, film forming property and surface activity. The PVP/VAc range acts as a stiffener and film forming agent, with a high vinyl acetate ratio and low hygroscopic properties, making it ideal for mousse, spray and hair setting.…

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.Application of PVPP in wine and molecular dynamics simulation Application: PVPP cardboard filter, PVPP disposable processing, PVPP recyclable recycling processingOn the contrary, the cross-linking degree of PVPP decreases, the molecular structure tends to be free chain, the steric hindrance of hydrogen bond formation decreases, and the average number of polyphenol molecules adsorbed by each PVPP molecule increases, which enhances the ability of PVPP to…

PVP has good bonding properties and strong dissolution ability. PVP formed tablets, after taking in the digestive tract, the first rapid dissolution, is the local expansion and disintegration of the tablets, the release of drug fragments, and then accelerate the dissolution and absorption of the drug, play a rapid role in the efficacy of the drug. PVP is soluble in water and most organic solvents, which is particularly important for drugs with few solvents to choose from. It is for these reasons that PVP has been widely used in pharmaceutical tablets, especially abroad. coprecipitantAnother important use of PVP as drug excipients is co-precipitation agent, some drugs have good efficacy, but its fatal disadvantage is that the solubility in water is very small, resulting in its bioavailability is greatly reduced, the use of some water-soluble substances with these drugs co-precipitation, and then improve the solubility and dissolution rate of drugs, to…

Hollow fiber ultrafiltration membrane is the most mature and advanced form of ultrafiltration technology. The outer diameter of hollow fiber is 0.4-2.0mm, the inner diameter is 0.3-1.4mm, and the wall of hollow fiber tube is covered with microholes, and the pore size can be expressed by the molecular weight of the intercepted material, and the molecular weight of the intercepted material can reach thousands to hundreds of thousands. In the function of hollow fiber membrane, the pore diameter and size of the membrane are closely related to the pore-making agent. At present, PVPK30 is the most used. As a better pore-causing agent, PVPK30 mainly affects the pore structure from two factors: thermodynamics and kinetics. Thermodynamics affects the pore structure When the content of PVPK30 in the casting liquid is low, the influence of thermodynamic factors becomes the dominant factor. The addition of PVPK30 reduces the thermodynamic stability of the casting…

In today’s technology world, batteries have become an essential part of our daily lives, from mobile phones and laptops to electric vehicles and renewable energy storage systems. In these batteries, a special chemical, lithium carbonate, plays a crucial role. This article will give you a detailed introduction to the basic knowledge of battery grade lithium carbonate. 1. Basic properties of lithium carbonate Lithium carbonate is a colorless crystal or white particle with the formula Li2CO3 and a molecular weight of 73.89. It is a weakly alkaline substance with good stability to heat and light, but it is easy to decompose in an acidic environment. Lithium carbonate has a low solubility in water, but a high solubility in organic solvents. 2. Preparation of battery grade lithium carbonate There are two main methods to prepare battery grade lithium carbonate: limestone method and sulfuric acid method. The limestone process is to decompose limestone…

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. Characteristics Crosslinked polyvinylpyrrolidone (PVPP) can be seen as a linear PVP molecular chain by physical or chemical crosslinking. Some properties of PVPP obtained by different synthesis methods are different due to different crosslinking methods and crosslinking degrees. Depending on the degree of crosslinking, PVPP appears as super absorbent resins (low crosslinking), water absorbent gels (medium crosslinking) and insoluble substances (high crosslinking). CAS number: 25249-54-1 Molecular formula: (C6H9NO)n Boiling point: 217.6°C at 760 mmHg Nature and packaging, storage Properties: white or near white, with hygroscopic easy to flow powder, odorless or slightly odorless, insoluble in…