What is PVP K30 CAS 9003-39-8?

PVP K30 is a synthetic water-soluble homopolymer of N-vinylpyrrolidone, also called polyvinylpyrrolidone or povidone. Its repeat formula is (C6H9NO)n, and K30 grade is typically supplied as a white to off-white hygroscopic powder with an average molecular weight around 40,000 g/mol.

What does the K30 value indicate?

K30 refers to a Fikentscher viscosity value, not a fixed molecular weight. It identifies a medium-molecular-weight PVP grade with a K value commonly around 27-32, giving a useful balance of solubility, binding strength, and viscosity for general-purpose formulations.

What are the main applications of PVP K30?

It is used as a tablet binder and granulation aid in pharmaceutical formulations, a dispersant and stabilizer in pigments, inks, and coatings, and a film former or viscosity-control agent in adhesives and personal care products. It can also serve as a process aid in detergents and cleaning systems.

Is PVP K30 suitable for water-based formulations?

Yes. PVP K30 is freely soluble in water and also dissolves in ethanol, methanol, and other polar organic solvents, so it works well in aqueous binder, coating, dispersion, and stabilizer systems. A typical 5% aqueous solution is mildly acidic to neutral.

How should PVP K30 be stored?

Because it is hygroscopic, store PVP K30 in tightly sealed, moisture-resistant containers in a cool, dry, well-ventilated area. Keep it away from humidity, direct sunlight, and heat sources, and maintain package integrity during transport and handling.

PVP K30 (Polyvinylpyrrolidone) CAS 9003-39-8

PVP K30 (Polyvinylpyrrolidone) is a non-ionic, water-soluble polymer positioned as a functional additive in industrial formulations, particularly where binding, dispersion stability, or film formation is required. It is commonly used in coatings, adhesives, ceramics, pharmaceuticals processing, and detergent formulations as a process aid and formulation stabilizer.

In industrial supply, PVP K30 is typically provided as a free-flowing powder for ease of handling and formulation. It is compatible with a wide range of solvents and active ingredients, making it suitable for multi-component systems. Standard export packaging is available, along with supporting documentation such as COA, TDS, and SDS for procurement and quality evaluation.

CAS: 9003-39-8
Synonyms: Polyvinylpyrrolidone; Povidone; PVP
Molecular Formula: (C₆H₉NO)n
Package: Available in standard export packaging; packaging format can be arranged according to order quantity and logistics requirements

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Product Description

1 Physicochemical Properties

2 Typical Applications

3 Packaging

4 Storage

Physicochemical Properties

Item	Description
Appearance	White to off-white hygroscopic powder
Odor	Mild or nearly odorless
Solubility	Freely soluble in water; soluble in ethanol and some polar organic solvents
pH (aqueous solution)	Typically in neutral range
Viscosity (K-value)	K30 grade (medium molecular weight range)
Glass Transition Temperature	Typically around 150–180°C
Density	Approx. 1.2 g/cm³ (bulk, typical)
Moisture Sensitivity	Hygroscopic; absorbs moisture from air

Typical Applications

Binders in solid formulations: Used in tablet granulation, ceramics, and powder processing where particle binding is required.
Dispersant and stabilizer: Applied in pigment dispersions, inks, and coatings to improve stability and prevent agglomeration.
Film-forming agent: Utilized in coatings and specialty formulations where uniform film formation is needed.
Process aid in detergents and cleaning formulations: Helps maintain dispersion of active components.
Adhesive systems: Contributes to viscosity control and adhesion performance in water-based systems.

Specific end uses should be evaluated according to formulation requirements and local regulatory considerations.

For related water-soluble polymer and binder pages, review Microcrystalline Cellulose, Carboxymethyl Cellulose, and Polyvinyl Alcohol.

Packaging

PVP K30 is typically supplied as a hygroscopic powder and packed in moisture-resistant, sealed containers to maintain product stability during storage and transport. Common packaging formats include multi-layer paper bags with inner liners or fiber drums with protective lining.

Packaging is arranged to ensure protection against moisture ingress and contamination, particularly during long-distance export handling. Bulk supply and palletized shipment can be organized based on order volume and logistics requirements.

Storage

Store in a cool, dry, and well-ventilated area. Keep containers tightly sealed to prevent moisture absorption. Avoid exposure to direct sunlight, heat sources, and humid environments.

Maintain package integrity during handling and storage to ensure consistent product performance in downstream applications.

FAQ - Technical & Supply Chain

Q:
What is PVP K30 CAS 9003-39-8?

A: PVP K30 is a synthetic water-soluble homopolymer of N-vinylpyrrolidone, also called polyvinylpyrrolidone or povidone. Its repeat formula is (C6H9NO)n, and K30 grade is typically supplied as a white to off-white hygroscopic powder with an average molecular weight around 40,000 g/mol.
Q:
What does the K30 value indicate?

A: K30 refers to a Fikentscher viscosity value, not a fixed molecular weight. It identifies a medium-molecular-weight PVP grade with a K value commonly around 27-32, giving a useful balance of solubility, binding strength, and viscosity for general-purpose formulations.
Q:
What are the main applications of PVP K30?

A: It is used as a tablet binder and granulation aid in pharmaceutical formulations, a dispersant and stabilizer in pigments, inks, and coatings, and a film former or viscosity-control agent in adhesives and personal care products. It can also serve as a process aid in detergents and cleaning systems.
Q:
Is PVP K30 suitable for water-based formulations?

A: Yes. PVP K30 is freely soluble in water and also dissolves in ethanol, methanol, and other polar organic solvents, so it works well in aqueous binder, coating, dispersion, and stabilizer systems. A typical 5% aqueous solution is mildly acidic to neutral.
Q:
How should PVP K30 be stored?

A: Because it is hygroscopic, store PVP K30 in tightly sealed, moisture-resistant containers in a cool, dry, well-ventilated area. Keep it away from humidity, direct sunlight, and heat sources, and maintain package integrity during transport and handling.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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