How does the K-value differentiate the specific polymer matrix identity of this Povidone?

The K-value is a highly specific index denoting the mean molecular weight and intrinsic viscosity of the polymer chain. A K-30 designation definitively identifies a medium-molecular-weight polymer commonly used for standard wet granulation, whereas a K-90 identity indicates a much higher molecular weight intended for strong, sustained-release matrix applications.

Is this polymer typically applied as a complexing agent in liquid dispersion formulations?

Yes, it is commonly used in liquid suspensions and aqueous solutions where it functions as a steric stabilizer and solubilizer, intended for preventing the crystallization and agglomeration of suspended particulate matter within the liquid phase.

Povidone CAS 9003-39-8

Povidone (CAS 9003-39-8) is a non-ionic water-soluble synthetic polymer synthesized through the free-radical polymerization of N-vinyl-2-pyrrolidone, serving as a critical functional excipient within the Pharmaceutical API & Intermediates category. Functioning as a high-performance polyvidone matrix, this versatile PVP resin exhibits excellent complexing capabilities, physiological inertness, and film-forming properties, making the poly(1-vinyl-2-pyrrolidone) integral to wet granulation processes and controlled-release solid dosage formulations. Its highly hygroscopic polyvinylpyrrolidone structure provides exceptional adhesive strength and solubility enhancement for poorly water-soluble active chemical ingredients when deployed in standard manufacturing workflows. To support continuous industrial processing schedules, our facility maintains extensive bulk supply capabilities, ensuring consistent molecular weight distribution with customized specifications to meet precise rheological parameters, all supported by competitive factory pricing and comprehensive technical documentation including MSDS, TDS, COA.

CAS: 9003-39-8
Synonyms: Polyvinylpyrrolidone, PVP resin, Polyvidone, Povidonum, Poly(1-vinyl-2-pyrrolidone)
Einecs: 618-363-4
Molecular Formula: (C6H9NO)n
Grade: Pharmaceutical Grade / Industrial Grade
Package: 25kg/drum (Fiber drum with double PE inner liners)

Request a quote

Share:

Product Description

Technical Data

Physicochemical Properties	Standard Specification (Standard K30 Grade)
Appearance	White to yellowish-white hygroscopic powder
K-Value	27.0 – 32.0
pH Value (5% aqueous solution)	3.0 – 7.0
Moisture / Water Content	≤ 5.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Residual N-vinylpyrrolidone Monomer	≤ 0.001% (10 ppm)
Solubility	Freely soluble in water, ethanol, and chloroform; practically insoluble in ether

Applications

Pharmaceutical Formulation: Functions primarily as a highly effective synthetic polymer binder for tablet and capsule wet granulation, and acts as a dissolution enhancer for low-solubility active pharmaceutical ingredients.
Cosmetic & Personal Care: Utilized as a superior film-forming agent and emulsion stabilizer in hair styling gels, lotions, and color-dispersing formulations.
Industrial Manufacturing: Applied as a dispersant and steric stabilizer in the production of industrial ceramics, advanced coatings, and specialty pigment inks.

Storage & Safety

Storage Conditions: Povidone is highly hygroscopic. It must be stored in tightly sealed, airtight containers within a cool, dry, and well-ventilated warehouse environment to prevent moisture absorption and caking.
Safety & Handling: While physiologically inert, the handling of fine polymer powders requires standard industrial dust control. Operators must use NIOSH-approved particulate dust masks, safety goggles, and standard protective workwear to mitigate mechanical irritation to the respiratory tract and eyes.

Quality Assurance

Our production lines operate under strict GMP-compliant quality management systems. Each batch undergoes rigorous analytical testing, utilizing High-Performance Liquid Chromatography (HPLC) to ensure residual N-vinylpyrrolidone monomer levels remain strictly below 10 ppm. We continuously monitor the K-value via automated capillary viscometry to guarantee the precise molecular weight distribution and structural consistency required for advanced formulation integrity.

FAQ - Technical & Supply Chain

Q:
How does the K-value differentiate the specific polymer matrix identity of this Povidone?

A: The K-value is a highly specific index denoting the mean molecular weight and intrinsic viscosity of the polymer chain. A K-30 designation definitively identifies a medium-molecular-weight polymer commonly used for standard wet granulation, whereas a K-90 identity indicates a much higher molecular weight intended for strong, sustained-release matrix applications.
Q:
Is this polymer typically applied as a complexing agent in liquid dispersion formulations?

A: Yes, it is commonly used in liquid suspensions and aqueous solutions where it functions as a steric stabilizer and solubilizer, intended for preventing the crystallization and agglomeration of suspended particulate matter within the liquid phase.

Documents

Documents and Product Support

For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.

COA for batch-based quality reference
TDS for key physical and chemical information
SDS / MSDS for handling, storage, and safety reference
Packing information for sample, trial, and bulk orders
Technical communication based on application and specification requirements

Quotation

Information to Confirm Before Quotation

Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.

Product name and CAS number
Application or intended end use
Required purity, grade, or specification
Sample quantity, trial order, or bulk demand
Preferred packing form or net weight
Destination country or port
Required documents or compliance expectations

Storage & Handling

Packaging, Storage, and Handling Notes

Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.

Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.

Supply Support

Sample, Bulk Order and Repeat Supply Support

Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.

For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.

Contact Form

Use our contact form to send us your questions, suggestions or comments. We will respond as soon as possible.

Product Categories

Tags:

Film Forming Agent Pharmaceutical Excipient Tablet Binder Water Soluble Polymer

Current Language

Change Language